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Copyright of Refractories / Naihuo Cailiao is the property of Naihuo Cailia (Refractories) Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Refractories / Naihuo Cailiao is the property of Naihuo Cailia (Refractories) Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Large Electric Machine & Hydraulic Turbine is the property of Large Electric Machine & Hydraulic Turbine Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Large Electric Machine & Hydraulic Turbine is the property of Large Electric Machine & Hydraulic Turbine Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Using the powders from the recovered machining chips of H11 steel as raw materials， the samples were prepared by powder compacting and extrusion-forging processes. Using tensile test， hardness test， XRD， SEM， TEM and etc.， the effects of different extrusion-forging temperatures in a range of 1100~1220℃ on the microstructure and mechanical properties of solid regenerated H11 steel were studied. The results show that the sample has a good consolidation effect. When the extrusion-forging temperature is 1220℃， the density of the sample can reach up to 95.8%. After the temperature is over 1140℃， the Fe7C3 phase precipitates in the matrix. With increasing extrusion-forging temperature from 1100℃ to 1220℃， the hardness along the extrusion direction increases from 2.5GPa to 4.4GPa and the tensile strength increases from 451MPa to 808MPa， while the elongation decreases from 3.1% to 0.7%. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Northeastern University (Social Science) / Dongbei Daxue Xuebao (Shehui Kexue Ban) is the property of Dongbei Daxue and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Northeastern University (Natural Science) is the property of Dongbei Daxue Xuebao and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Natural Gas Industry is the property of Natural Gas Industry Journal Agency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The effects of homogenizing annealing and forging on the microstructure， strength and toughness of the dual-phase wear-resistant steel were investigated. The results showed that the microstructure of the steel contained mainly lath martensite， acicular bainite and a little retained austenite under 980℃ homogenizing annealing for 4 and 8hrs respectively and 1150℃ forging. The minimum grain size of the steel is No.7.0~7.5 grade after forging while the maximum grain size of the steel homogenized is No.6.5~7.0 grade. The holding time of the homogenizing annealing is the main factor that affects the mechanical properties of dual-phase wear resistant steels， and the impact toughness and elongation values of the test steels holding for 4hrs are higher than that of the test steels holding for 8hrs. Forging deformation improves the strength and toughness of dual-phase wear resistant steels more significantly than that under homogenizing annealing， and the optimized process parameters were as follow with initial forging temperature of 1150℃， final forging temperature of 800℃ and forging ratio of 2. [ABSTRACT FROM AUTHOR]