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120 results on '"Huang, Qipeng"'

49. Tribological Behaviors and Friction-Induced Vibration and Noise Performance of TC4 with Microporous Channels Filled by Sn-Ag-Cu and Nb2C.

Author

Gao, Hui, Shi, Xiaoliang, Xue, Yawen, Zhang, Kaipeng, Huang, Qipeng, Wu, Chaohua, Ma, Jin, and Shu, Jingping

Subjects
SOUND pressure, NOISE, SURFACE defects, TITANIUM alloys, DRY friction
Abstract

Due to the excellent properties of titanium alloys, they are widely used in various fields. However, the poor tribological performance limits the further development of titanium alloys. In this paper, TC4 with microporous channels was manufactured by laser additive manufacturing technology. On this basis, TC4-Sn-Ag-Cu (TSAC) and TC4-Sn-Ag-Cu-Nb2C (TSACN) self-lubricating materials were prepared. The friction and wear tests were carried out under dry friction conditions, and tribological behaviors and friction-induced noise were analyzed. The results show that TSACN self-lubricating composite has outstanding tribological properties and noise suppression performance. Compared with TC4, the friction coefficient and equivalent sound pressure level of TSACN are reduced by 20.1 and 6.7%, respectively. The excellent tribological properties are mainly attributed to the synergistic effect of microporous channel and Sn-Ag-Cu-Nb2C. Microporous channel can promote the diffusing of lubricants and accelerate the formation rate of lubricating film; Nb2C can enhance soft metal lubricant Sn-Ag-Cu to make the lubricating film more dense. The lubricating film can repair wear pits, furrows and other defects on the worn surface and avoid the direct contact between the counterpart ball and the sample, thereby improving the tribological properties of TC4 and reducing the friction-induced vibration and noise. [ABSTRACT FROM AUTHOR]

Published
2023
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50. Improving Tribological Performance of 42CrMo under Dry Sliding Conditions by Combining Rhombic-Textured Surfaces with Sn–Ag–Cu Solid Lubricant and MXene-Ti3C2TX.

Author

Xu, Linmeng, Shi, Xiaoliang, Xue, Yawen, Zhang, Kaipeng, Huang, Qipeng, Wu, Chaohua, Ma, Jin, and Shu, Jingping

Subjects
SOLID lubricants, TRIBOLOGY, BIONICS, WEAR resistance, LIQUID films, STEEL, FRICTION
Abstract

Inspired by rhombic textures on shark skin surface, this paper designs bionic micro-textures filled by solid lubricants SnAgCu and Ti3C2TX to improve the tribological properties of 42CrMo steel. Compared with 42CrMo steel, the average friction coefficient and wear depth of 42CrMo-SnAgCu-Ti3C2TX with bionic micro-textures at 25 N were separately decreased by 41.52 and 79.07%, and decreased by 50.77 and 80% at 35 N, respectively. Two-dimensional material Ti3C2TX can be well combined with SnAgCu to promote the formation of a smooth and continuous lubricating film on the worn surface, which plays an excellent antifriction and wear resistance role under the specific working conditions. [ABSTRACT FROM AUTHOR]

Published
2023
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