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The effect of temperature on the corrosion behaviour of Inconel alloys employed for the electroreduction of metal oxides to metals in a lithium molten salt was investigated. The ratio of the weight loss of Inconel 601 and 690 to that of Inconel 600, Inconel 601 and 690 was approximately four and six at 650 °C, and five and eight times higher than that of Inconel 600 above 750 °C for 72 h, respectively. The corrosion products of all the alloys tested at 650 °C and 750 °C for 72 h were mainly Cr2O3 and FeCr2O4; however, only Cr2O3 was obtained when Inconel 690 was corroded at 750 °C or higher. Additionally, an alloy with a composition of max. 16.3 wt.% Cr, min. 73.66 wt.% Ni and well below 8.15 wt.% Fe was expected to exhibit excellent corrosion resistance in a lithium molten salt system at 650–850 °C. [ABSTRACT FROM AUTHOR]

Problem definition: Generating recommendations of compatible dating partners is a challenging task for online dating platforms because uncovering users' idiosyncratic preferences is difficult. Thus, platforms tend to recommend popular users to others more frequently than unpopular users. This paper studies such popularity bias in an online dating platform's recommendations and its consequences for users' likelihood of finding dating partners. Methodology/results: Motivated by the empirical evidence that a user's chance of being recommended by the platform's algorithm increases significantly with the user's popularity, we study an online dating platform's incentive that generates popularity bias by modeling the platform's recommendations and users' subsequent interactions in a three-stage matching game. Our analysis shows that the recommendations that maximize the platform's revenue and those that maximize the number of successful matches between users are not necessarily at odds, even though the former leads to a higher bias against unpopular users. Unbiased recommendations result in significantly lower revenue for the platform and fewer matches when users' implicit cost of evaluating incoming messages is low. Popular users help the platform generate more revenue and a higher number of successful matches as long as these popular users do not become "out of reach." We validate our theoretical results by running simulations of the platform based on a machine learning–based predictive model that estimates users' behavior. Managerial implications: Our result indicates that an online dating platform can increase revenue and users' chances of finding dating partners simultaneously with a certain degree of bias against unpopular users. Online dating platforms can use our theoretical results to understand user behavior and our predictive model to improve their recommendation systems (e.g., by selecting a set of users leading to the highest probabilities of matching or other revenue-generating interactions). Supplemental Material: The online appendices are available at https://doi.org/10.1287/msom.2022.0132. [ABSTRACT FROM AUTHOR]

The hot corrosion behaviors of Inconel alloys with different Cr contents (Inconel 600, 601, and 690), which are used widely in nuclear plants, were investigated in molten LiCl–Li2O salts. The hot corrosion behaviors were studied by measuring the mass and attack depth changes, surface and cross-sectional morphologies and elemental distributions, and compositional changes at the subscale and substrate scale as well as the spalled oxide scale. At 288 h, the weight losses of Inconel 601 and Inconel 690 were approximately four and twelve times higher, respectively, than that of Inconel 600. The corrosion products of all tested alloys were Cr2O3, NiO, and FeCr2O4. Inconel 600, which exhibited a dense and continuous external corrosion layer and an internal corrosion layer with localized corrosion behavior, exhibited superior corrosion resistance compared with those of Inconel 601 and 690, which showed a spalled external corrosion layer and an internal corrosion layer with uniform corrosion behavior. Thus, the corrosion resistance of the Inconel alloys tested in the hot lithium molten salts in an oxidizing atmosphere is closely related to the contents of the primary alloying elements in the alloys. Of the various alloys analyzed in this study, Inconel 600 exhibited the highest corrosion resistance. Thus, a Cr content of 16.30 wt% or less, Ni content of at least 73.66 wt%, and Fe content considerably lower than 8.15 wt% can result in excellent corrosion resistance. [ABSTRACT FROM AUTHOR]

Problem definition: This paper examines whether and, if so, how much an online–off-line return partnership between online and third-party retailers with physical stores (or "location partners") generates additional value to location partners. Academic/practical relevance: Online shoppers often prefer to return products to stores rather than mailing them back. Many online retailers have recently started to collaborate with location partners to offer the store return option to their customers, and we quantify its economic benefit to a location partner. Methodology: We analyze proprietary data sets from Happy Returns (which provides return services for more than 30 online retailers) and one of its location partners, using a panel difference-in-differences model. In our study, a treatment is the initiation of the return service at each of the location partner's stores, and an outcome is the store and online channel performance of the location partner. We then explore the mechanisms of underlying customer behavior that drive these outcomes. Results: We find that the partnership increases the number of unique customers, items sold, and net revenue in both store and online channels. We identify two drivers for this improved performance: (1) the location partner acquires new customers in both store and online channels, and (2) existing customers change their shopping patterns only in the store channel after using the return service; in particular, they visit stores more often, purchase more items, and generate higher revenue after their first return service. Managerial implications: To our knowledge, we provide the first direct empirical evidence of value to location partners from a return partnership, and as these partnerships become more prevalent, our findings have important managerial implications for location partners and online retailers alike. [ABSTRACT FROM AUTHOR]

In this study, the isothermal and cyclic corrosion behaviours of Haynes 282 and Haynes 214 in a lithium molten salt were investigated at 650°C for 168 h and 7 thermal cycles, respectively; this was achieved by measuring the mass changes, surface and cross-sectional morphologies with their elemental distributions, and compositional changes in the subscale, substrate and spalled oxide scale. The weight loss of Haynes 282 comprising an external corrosion layer was approximately four times lower than that of Haynes 214 with a spalled external corrosion layer, depending on the effects of their alloying elements and the preservation, spallation and dissolution of the corrosion layer. After 168 h and 7 thermal cycles, corrosion products of Haynes 282 were Cr2O3 and CoCr2O4 and those of Haynes 214 were Cr2O3, LiFeO2 and FeCr2O4. In addition, the internal corrosion layers of Haynes 282 and Haynes 214 exhibited localised and uniform corrosion behaviours, respectively. [ABSTRACT FROM AUTHOR]

Automakers, including Toyota and General Motors, were recently caught by the U.S. regulator for deliberately hiding product defects in an attempt to avoid massive recalls. Interestingly, regulators in the United States and United Kingdom employ different policies in informing consumers about potential defects: the U.S. regulator publicly announces all ongoing investigations of potential defects to provide consumers with early information, whereas the UK regulator does not. To understand how these different announcement policies may affect cover-up decisions of automakers, we model the strategic interaction between a manufacturer and a regulator. We find that, under both countries' policies, the manufacturer has an incentive to cover up a potential defect when there is a high chance that the defect indeed exists and it may inflict only moderate harm. However, if there is only a moderate chance that the defect exists, only under the U.S. policy does the manufacturer have an incentive to cover up a potential defect with significant harm. We show that the U.S. policy generates higher social welfare only for very serious issues for which both the expected harm and recall cost are very high and the defect is likely to exist. We make four policy recommendations that could help mitigate manufacturers' cover-ups, including a hybrid policy in which the regulator conducts a confidential investigation of a potential defect only when it may inflict significant harm. This paper was accepted by Vishal Gaur, operations management. [ABSTRACT FROM AUTHOR]

This study examines innovation tournaments in which an organizer seeks solutions to an innovation‐related problem from a number of agents. Agents exert effort to improve their solutions but face uncertainty about their solution performance. The organizer is interested in obtaining multiple solutions—agents whose solutions contribute to the organizer's utility are called contributors. Motivated by mixed policies observed in practice, where some tournaments are open and others restrict entry, we study when it is optimal for the organizer to conduct an open tournament or to restrict entry. Our analysis shows that whether an open tournament is optimal is tied to: (1) the variance of uncertainty as compared to the impact of effort; (2) the number of contributors, and (3) the skewness of the uncertainty distribution. Our results help explain mixed policies about restricting entry observed in practice as well as recent empirical and experimental findings. [ABSTRACT FROM AUTHOR]

We investigate the effects of autonomous vehicles (AVs) on highway congestion. AVs have the potential to significantly reduce highway congestion because they can maintain smaller intervehicle gaps and travel together in larger platoons than human-driven vehicles (HVs). Various policies have been proposed to regulate AV travel on highways, yet no in-depth comparison of these policies exists. To address this shortcoming, we develop a queueing model for a multilane highway and analyze two policies: the designated-lane policy ("D policy"), under which one lane is designated to AVs, and the integrated policy ("I policy"), under which AVs travel together with HVs in all lanes. We connect the service rate to intervehicle gaps (governed by a Markovian arrival process) and congestion, and measure the performance using mean travel time and throughput. Our analysis shows that although the I policy performs at least as well as a benchmark case with no AVs, the D policy outperforms the benchmark only when the highway is heavily congested and AVs constitute the majority of vehicles; in such a case, this policy may outperform the I policy only in terms of throughput. These findings caution against recent industry and government proposals that the D policy should be employed at the beginning of the mass appearance of AVs. Finally, we calibrate our model to data and show that for highly congested highways, a moderate number of AVs can make a substantial improvement (e.g., 22% AVs can improve throughput by 30%), and when all vehicles are AVs, throughput can be increased by over 400%. This paper was accepted by Jayashankar Swaminathan, operations management. [ABSTRACT FROM AUTHOR]

When a government agency considers tightening a standard on a pollutant, the agency often takes into account the proportion of firms that are able to meet the new standard (what we refer to as the industry's "voluntary adoption level") because a higher proportion indicates a more feasible standard. We develop a novel model of regulation in which the probability of a stricter standard being enacted increases with an industry's voluntary adoption level. In addition, in our model, the benefit of a new green technology is both uncertain and correlated across firms, and firms' decisions exhibit both strategic substitutability (because the marketing benefit of a new green technology decreases as more firms adopt it) and complementarity (because the stricter standard is more likely to be enforced as more firms adopt it). To analyze such strategic interaction among firms' decisions under correlated and uncertain payoffs, we use the global game framework recently developed in economics. Our analysis shows that regulation that considers an industry's voluntary adoption level, compared with regulation that ignores it, can more effectively motivate development of a new green technology. Interestingly, uncertainty in the payoff can, in some situations, help promote development of a new green technology. Finally, we find that more aggressive regulation (a higher probability of enforcing a stricter standard for a given voluntary adoption level) encourages more firms to adopt a green technology once the technology becomes available but may discourage a firm from developing it in the first place when facing intense competition. Therefore, for an industry with intense competition, a government agency should exercise caution about being too aggressive with regulation, which could potentially stifle innovation. This paper was accepted by Vishal Gaur, operations management. [ABSTRACT FROM AUTHOR]

We study supply chains where multiple suppliers sell to multiple retailers through a wholesale market. In practice, we often observe that both suppliers and retailers tend to influence the wholesale market price that retailers pay to suppliers. However, existing models of supply chain competition do not capture retailers' influence on the wholesale price (i.e., buyer power) and show that the wholesale price and the order quantity per retailer do not change with the number of retailers. To overcome this limitation, we develop a competition model based on the market game mechanism in which the wholesale price is determined based on both suppliers' and retailers' decisions. When taking into account retailers' buyer power, we obtain the result that is consistent with the observed practice: As the number of retailers increases, each retailer's buyer power decreases, and each retailer is willing to pay more for her order, so the wholesale price increases. In this case, supply chain expansion to include more retailers (or suppliers) turns out to be more beneficial in terms of supply chain efficiency than what the prior literature shows without considering buyer power. Finally, we analyze the integration of two local supply chains and show that although the profit of the integrated supply chain is greater than the sum of total profits of local supply chains, integration may reduce the total profit of firms in a retailer-oriented supply chain that has more retailers than suppliers. This paper was accepted by Charles Corbett, operations management. [ABSTRACT FROM AUTHOR]

We study the pricing and return policy decisions of an omnichannel retailer serving customers who differ in how they realize their uncertain valuation for a product—by inspecting in store before purchase or by purchasing online and possibly returning misfit products. Customers may return misfit products either to stores for a full refund or online as per the firm's return policy. We model prices to be identical across channels, allow crosschannel returns, and endogenize customers' purchase and return decisions, capturing typical features of an omnichannel setting. Our analysis helps explain why some omnichannel firms choose full refunds, whereas others charge a fee for online returns. We find that omnichannel firms with good salvage partners for online returns (e.g., Nordstrom) as well as those with more store-based customers (e.g., Macy's) should offer full refunds. Similarly, firms are incentivized to offer full refunds for products that customers are more likely to inspect in store (e.g., Express for footwear). In contrast, firms with a significant store network and better in-store salvage opportunities (e.g., J.C. Penney) might be better off charging a fee for online returns in order to nudge customers to return in store. Finally, an omnichannel firm should be cautious both in making the return process more convenient and in improving accessibility to its stores, because these seemingly beneficial policies, if combined with a partial-refund policy, could undermine the firm's overall profit. This paper was accepted by Vishal Gaur, operations management. [ABSTRACT FROM AUTHOR]

Problem definition: This paper studies two cooperative approaches of firms in managing social responsibility violations of their supplier: auditing a common supplier jointly (joint auditing) and sharing independent audit results with other firms (audit sharing). We study this problem in a market with externalities and a large number of firms. Academic/practical relevance: With numerous firms procuring their materials and parts worldwide, there are many cases in which overseas suppliers violate safety, labor, or environmental standards. Those violations have externalities in the sense that one firm's violation affects other firms in the same market. It is not clear how such externalities affect competing firms' incentives to cooperate and the effectiveness of such cooperation. Methodology: We develop a model based on a cooperative game in partition function form, which enables us to analyze the competitive and cooperative interactions of a large number of firms in a market. Results: Although there has been concern about cooperation for fear of compromising a competitive advantage, firms have incentives to cooperate in managing their suppliers when one firm can be hurt by others' violations, that is, the negative externality is high. However, neither cooperative approach necessarily improves social responsibility, especially when one firm can benefit from others' violations, that is, the positive externality is high. Finally, even if agreement is not reached for cooperation before conducting individual audits, social responsibility can still be improved by incentivizing firms to share their private audit results with others under a properly designed mechanism. Managerial implications: The careful assessment of the externalities associated with social responsibility violations is a key to the success of joint auditing and audit sharing. Although firms cooperate voluntarily in some cases, a government agency or an industry association should intervene in other cases to motivate cooperation if it is beneficial. In addition, caution must be taken to monitor manufacturers' audit efforts, especially when cooperative approaches are implemented in the market where competition is fierce and consumers switch brands easily. [ABSTRACT FROM AUTHOR]

The high-temperature corrosion behavior of anode current collectors in liquid Ag under an oxidizing atmosphere was investigated. The weight gain in oxygen was higher than that of liquid Ag because of the effective barrier formed by Ag-rich layer coated on the corrosion layer. The thickness of the corrosion layer under oxygen was approximately twice that of the layer developed under liquid Ag because of the effective barrier originating from the Ag-rich layer. The corrosion products on the surface of the specimens in both oxygen and liquid Ag were Al2O3 and FeAl2O4 from 24 to 168 h. The surface morphology that was developed on the scale of the corroded layer represented a buckle structure in liquid Ag and a convoluted structure in oxygen, which resulted from the lateral growth of the oxide. This study proved the improved stability and cost-effectiveness of using FeCrAl alloy as a current collector in a solid oxide membrane system. [ABSTRACT FROM AUTHOR]

Problem definition: We investigate multinational firms' inspection and pricing strategies to address the challenges of combating child labor in global supply chains. We also examine how several factors (such as information disclosure, goodwill loss, inspection cost, external monitoring by nongovernmental organizations (NGOs), and penalty scheme) affect firms' incentives to use different strategies to combat child labor. Academic/practical relevance: Nearly 200 million children are engaged in child labor, many in developing countries that are part of the supply base of global manufacturing networks. However, there has been little research on evaluating the impact of firms' strategies and NGOs' initiatives on child labor. Methodology: We develop a game-theoretic model based on a two-tier supply chain, in which a multinational firm in a developed country sells the product made by a supplier in a developing country. Results: If internal inspections are economical, a global firm can reduce the incidence of child labor by inspecting the supplier's use of child labor. Otherwise, the firm can deter the supplier's child labor employment by offering a sufficiently high wholesale price or simultaneously using internal inspections and a medium wholesale price. The latter strategy should be adopted only when information about the firm's inspection policy can be informed credibly. This strategy combats child labor more effectively when a higher penalty is levied onto the supplier's use of child labor. Managerial implications: A multinational firm that adopts a zero-tolerance policy should consider disclosing its effort to combat child labor (e.g., through a social responsibility report), whereas it should take extra caution when using other penalty schemes. NGOs should help raise the firm's goodwill cost (e.g., through campaigns and consumer education), but they should be careful about helping to reduce the firm's inspection cost (e.g., by improving a monitoring system). To prevent children from going back to work after initial removal, a sufficient amount of compensation should be provided to those children, especially when firms rely on inspections without paying a high wholesale price to suppliers. [ABSTRACT FROM AUTHOR]

Abstract: The high‐temperature stability of YSZ and MSZ specimens was investigated in CaF2–MgF2–MgO molten salt at 1200°C. YSZ was mostly composed of m‐ZrO2 and a small part of YF3 in the early stages. The formation of YF3 was attributed to the chemical reaction between Y2O3 and MgF2, which can lead to the leaching of Y2O3 from YSZ. With an increase in exposure time, the degraded surface was coarser, and considerable amount of cracks, pores, and spallations were formed. Furthermore, no Y2O3 was found up to 120 μm of the YSZ bulk in the early stages. MSZ was composed of t‐ZrO2 after 24 hours. However, the volume fraction of m‐ZrO2 was 72% after 72 hours, and CaZrO3 was formed by the chemical reaction between CaO and ZrO2 after 168 hours. In addition, the volume fraction of m‐ZrO2 was 60% in 2.5 wt% MgO and 49% in 10 wt% MgO. In 5 wt% MgO, CaZrO3 was formed. We demonstrate that the high‐temperature stability of MSZ was better than that of YSZ, and that 10 wt% MgO was much more stable than the other concentrations of MgO. [ABSTRACT FROM AUTHOR]

This paper studies a merger between price-setting newsvendors in an oligopolistic market. It is well known that inventory pooling can greatly reduce inventory costs in a centralized distribution system because it helps reduce aggregate demand uncertainty. Although such statistical economies of scale are important benefits of a retail merger, the extant literature models cost savings from a merger only through reduction in a postmerger firm's marginal cost. In this paper, we develop a model of a retail merger under uncertain demand that distinguishes between cost savings from conventional economies of scale and those from statistical economies of scale, and we show that these two sources of cost savings have substantially different impacts on firms' decisions in a postmerger market. Contrary to the existing theory of mergers developed under deterministic demand, we find that although inventory pooling enables the postmerger firm to achieve cost savings, it always induces firms to raise their prices, and we find that marginal cost reduction induces firms to lower their prices only when it is substantial-consequently, larger cost synergies can benefit even nonparticipant firms. Finally, even if a merger induces all firms to raise their prices, it can still improve expected consumer welfare by increasing firms' service levels under uncertain demand. This paper was accepted by Serguei Netessine, operations management. [ABSTRACT FROM AUTHOR]

The agricultural sector plays an important role in emerging economies even though most farmers are trapped in the poverty cycle owing to their smallholdings. Aggregating farmers through formal or informal cooperatives (coops) can enable them to: (i) reduce production cost; (ii) increase/stabilize process yield; (iii) increase brand awareness; (iv) eliminate unnecessary intermediaries; and (v) eliminate price uncertainty. To examine whether these effects will benefit the members of such aggregation when they compete with other individual farmers, we present separate models to capture the essence of these five effects. For each effect, we find that it is beneficial for a farmer to be part of the aggregation only when the size of the aggregation is below a certain threshold. Also, while certain effects are beneficial to the market as a whole, other effects are hurtful due to higher market price and/or lower production quantity. [ABSTRACT FROM AUTHOR]

The high temperature corrosion behavior of N07263, N06600, and N06625 in LiCl-LiO molten salt was investigated at temperatures ranging from 650 to 850 °C in a glove box. The high temperature corrosion behavior was observed using measurements of the oxide morphology and thickness, the extent of internal corrosion, and the compositional changes in the scale and in the substrate. Corrosion tests were performed, and these demonstrated that the main corrosion products were Fe(Ni,Co), FeNi, and LiCrO. The internal corrosion of N07263 was localized, while that of N06600 maintained intergranular corrosion throughout the test temperature range. N06625 exhibited uniform intergranular corrosion behaviors at low and high temperatures. N07263 exhibited superior corrosion resistance, as evidenced by its corrosion layer which was more continuous, dense, and adherent when compared with those of N06600 and N06625. [ABSTRACT FROM AUTHOR]

In this study, the cyclic corrosion behavior of N06230, N07263, and N06625 in a LiCl-LiO molten salt was investigated at 650 °C in argon atmosphere. The cyclic corrosion behavior was observed through measurements of the oxide morphology and thickness, the extent of internal corrosion, and compositional changes in the oxide scale and the substrate. The corrosion products in the surface corrosion layers of N07263 were (Ni,Co)O, (Ni,Co)CrO, CrO, and TiO and those in the surface corrosion layers of N06230 were NiO, NiCrO, and CrO, while NiO, NiCrO, CrNbO, and CrO were identified as the corrosion products of N06625. The internal corrosion behavior of N07263 was localized, while N06230 and N06625 showed uniform corrosion. N07263 exhibited superior corrosion resistance as its corrosion layer was more continuous, dense, and adherent as compared to those of N06230 and N06625. [ABSTRACT FROM AUTHOR]

For many product categories, manufacturers and retailers often offer rebates to stimulate sales. Due to certain adverse effects, however, some manufacturers and retailers are contemplating the elimination of their rebate programs. This paper sheds light on the debate about the value of rebate programs by presenting a model for evaluating the conditions under which a firm should offer rebates in a competitive environment. Specifically, we consider a two-level supply chain comprising one manufacturer and one retailer. Each firm makes three decisions: the regular (wholesale or retail) price, whether or not to offer rebates, and the rebate value should the firm decide to launch a rebate program. We determine the equilibrium of a vertical competition game between the manufacturer (leader) and the retailer (follower), and we provide insights about how competition affects the conditions under which a firm should offer rebates in equilibrium. [ABSTRACT FROM AUTHOR]

The electrolytic reduction of a spent oxide fuel involves the liberation of the oxygen in a molten LiCl electrolyte, which is a chemically aggressive environment that is too corrosive for typical structural materials. Accordingly, it is essential to choose the optimum material for the process equipments such as the electroreducer and the salt purification vessel in the pyrochemical process. In this study, the corrosion behaviors of superalloys N-1, N-2 and N-3 in a molten LiCl-Li2O salt under an oxidizing atmosphere were investigated at 650 °C for 72 h to 216 h. Superalloy N-1 showed the highest corrosion resistance among the examined alloys. The corrosion products of superalloys N-1 and N-2 were NiO, Cr2O3, and NiCr2O4, while NiO, Cr2O3, LiAl2Cr3O8 were identified as the corrosion products of superalloy N-3. For superalloy N-1, its outer corrosion layer was more continuous, dense and adherent compared to those of N-2 and N-3. [ABSTRACT FROM AUTHOR]

The electrolytic reduction of a spent oxide fuel involves the liberation of the oxygen in molten LiCl electrolyte, which is a chemically aggressive environment that is excessively corrosive for typical structural materials. Accordingly, it is essential to choose the optimum material for the processing equipment that handles the molten salt. In this study, the corrosion behaviors of Haynes 263, Haynes 75, Inconel 718 and Inconel X-750 in a molten LiCl−Li2O salt under an oxidizing atmosphere were investigated at 650°C for 72 to 216 hrs. The Haynes 263 alloy showed the best corrosion resistance among the examined alloys. The corrosion products of Haynes 263 were Li(Ni,Co)O2 and LiTiO2; those of Haynes 75 were Cr2O3, NiFe2O4, LiNiO2 and Li2FiFe2O4; while Cr2O3, NiFe2O4 and CrNbO4 were identified as the corrosion products of Inconel 718. Inconel X-750 produced Cr2O3, NiFe2O4 and (Cr, Nb, Ti)O2 as its corrosion products. Haynes 263 showed a localized corrosion behavior while Haynes 75, Inconel 718 and Inconel X-750 showed a uniform corrosion behavior. [ABSTRACT FROM AUTHOR]

The electrolytic reduction of a spent oxide fuel involves the liberation of oxygen in a molten salt LiCl–Li2O electrolyte, which creates a corrosive environment for typical structural materials. In this study, the corrosion behaviors of Al–Y-coated specimens in a Li molten salt kept under an oxidizing atmosphere at 650 °C for 72 and 168 h were investigated. The weight loss fraction of the coated specimen to bare specimen was approximately 60% for 3% Li2O and 54% for 8% Li2O at 72 h, and approximately 38% for 3% Li2O and 30% for 8% Li2O at 168 h. Corrosion was induced in the LiCl–Li2O molten salt by the basic oxide ion O2− via the basic flux mechanism, and the corrosion product was found to be dependent on the activity of the O2− ion. The increase in weight loss may have been caused by the increase in the O2− concentration due to the increase in the Li2O concentration rather than being because of the increased reaction time. The Al–Y coating was found to be beneficial for hot corrosion resistance, which can be useful for handling high-temperature lithium molten salt under an oxidizing atmosphere. [ABSTRACT FROM AUTHOR]