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Microstructures and hardness of Ti-6Al-4V alloy staging castings under centrifugal field SUI Yan-wei(隋艳伟)1, LI Bang-sheng(李邦盛)1, LIU Ai-hui(刘爱辉)1, NAN Hai(南 海)2, GUO Jing-jie(郭景杰)1, FU Heng-zhi(傅... size, the thickness of lamellar α+β phase, and the Vickers hardness, as well as the relationships between Vickers hardness, grain size and thickness of lamellar α+β phase were investigated......
Preparation and Properties of High Hardness and Oxidation Resisting Coating Using Electric Arc Spray TANG Chun-tian1,LI Zhuo-xin1,WANG Jiang-Ping1,CUI Li1 (1.Beijing University of Technology, Beijing, 100022) 摘要:A coating with high hardness, wear and oxidation resistance was prepared by electric arc spray. The hardness,bonding strength, abrasive wear and values of porosity and oxidation......
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Homogeneity of microstructure and Vickers hardness in cold closed-die forged spur-bevel gear of 20CrMnTi alloyDONG Li-ying(董丽颖)1, LAN Jian(兰箭)1, 2, ZHUANG Wu-hao(庄武豪)1(1. School of Materials Science... hardness in cold closed-die forged gear of 20CrMnTi alloy is comprehensively studied by using optical microscopy and Vickers hardness tester. The results show that the distribution homogeneity......
J. Cent. South Univ. (2017) 24: 9-16 DOI: 10.1007/s11771-017-3403-2 An optimized hardness model for carburizing-quenching of low carbon alloy steel ZHANG Xing(张星)1, TANG Jin-yuan(唐进元)1, ZHANG Xue... Central South University Press and Springer-Verlag Berlin Heidelberg 2017 Abstract: Research has been conducted about the hardness prediction for the carburizing and quenching process based......
Effect of plastic deformation on microstructure and hardness of AlSi/Al gradient composites ZHANG Wei-wen(张卫文), LUO Zong-qiang(罗宗强), XIA Wei(夏 伟), LI Yuan-yuan(李元元) School of Mechanical...-hardness were studied on plates made from a cylindrical ingot of AlSi/Al aluminum composite. This ingot was produced by double-stream-pouring continuous casting(DSPCC). The results show that the three......
Microstructure and nanoindentation hardness of Ag/Fe multilayers ZHU Xiao-ying(朱晓莹)1, 2, LIU Xue-jing(刘雪敬)1, ZENG Fei(曾 飞)1, PAN Feng(潘 峰)1 1. Laboratory of Advanced Materials, Department.... Their microstructure and hardness were investigated using XRD, TEM and nanoindentation. The fcc/bcc type multilayers show a textured polycrystalline growth with Ag (111) and Fe (110) in Ag layers......
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Microstructures and Hardness of 8CrWMoV Steel with Multiple Types of Ultra Fine Carbides QI Yu-hong1,DAI Yu-mei1,LIU Yan-xia1,ZHANG Zhan-ping1,YU Tao1,MA Yong-qing1 (1.Institute of materials and technology, Dalian Maritime University, Dalian 116026) 摘要:The structure and hardness of 8CrWMoV steel with multiple types of ultra fine carbides are studied after annealing, quenching and tempering......
