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Shortening the Duration of Heat Treatment in the Lower Bainitic Range H.Vetters1,J.Dong1,H.-W.Zoch1 (1.Foundation Institute for Materials Science, Bremen, Germany) 摘要:In many cases an isothermal... bainitic treatment in salt bath is that the duration of the treatment is much longer than that of the martensitic hardening and this causes higher costs. Therefore it would be desirable to be able......
Effects of Reheating Duration on the Microstructures and Tensile Properties of Thixoforged In Situ Mg2Sip/AM60B CompositesTijun Chen,Suqing Zhang,Yushi Chen,Yuandong Li,Ying Ma,Yuan HaoKey laboratory of Advanced Processing and Recycling of Nonferrous Metals,Lanzhou University of Technology摘 要:The influences of reheating duration on microstructures......
Effect of Annealing Duration and Substrates on Structure and Property of Vanadium Dioxide Films储新宏,TAO Haizheng,WAN Meinan,WANG Shuo,NING Zhiyong,XU Na,赵修建State Key Laboratory of Silicate Materials... duration is a key factor to obtain pure VO2 films and AZO-covered glass is more suitable to obtain the VO2 films with high visible transmittance, good crystallinity and larger near-infrared switching......
of Technology, Harbin 150001, China)Abstract:The evolution in microstructure and composition of the milled Ti-Al composite powder with different milling time were investigated. It shows that with the milling time increasing, the initial powder underwent a successive change in its morphology from a flattened shape (2 h) to a fine, equiaxed and uniform one (above 6 h). The milled Ti-Al composite......
Enhanced elevated temperature wear resistance of Al-17Si-5Cu alloy after a novel short duration heat treatmentBiplab Hazra,Supriya Bera,Bijay Kumar ShowDepartment of Metallurgical and Materials...%Si-5 wt%Cu alloy(AR alloy) by a novel short duration heat treatment process. The elevated temperature(100°C) dry sliding wear behavior of an AR alloy was studied after microstructural modification using......
COMPARISON ON REFINEMENT OF IRON POWDER BY BALL MILLING ASSISTED BY DIFFERENT EXTERNAL FIELDS M. Zhu1,B. Cao1,L.Y. Dai1 (1.School of Mechanical Engineering, South China University of Technology,Guangzhou 510640, China;2.Marine Engineering Institute, Jimei University, Xiamen 361021, China) Abstract:The cryogenic milling and milling in conjunction with dielectric barrier discharge plasma (DBDP......
J. Cent. South Univ. (2018) 25: 506-515 DOI: https://doi.org/10.1007/s11771-018-3755-2 Microstructure, mechanical properties, and milling performance of arc-PVD AlTiN–Cu and AlTiN/AlTiN–Cu coatings... photoelectron spectroscopy (XPS). Hardness and adhesion of films were measured by nano-indentation and nano-scratch tester. Cutting tests were performed under milling conditions during wet machining of TC4......
SIMULATION OF TEMPERATURE AND THERMAL STRESS FIELD IN LASER MILLING PROCESSING X.Y.Zeng1,C.S.Ge2,G.F.Yuan1 (1.State Key Laboratory of Laser Technology, Huazhong University of Science and Technology..., on which the numerical simulation with the assuming physical and laser milling parameters have been finished. The laser milling process can be explained. Key words:laser milling; temperature field......
NUMERICAL SIMULATION OF EXTRUSION OF COMPOSITE POWDERS PREPARED BY HIGH ENERGY MILLING Q.L.Zhu1,W.Xia1,Y.Y.Li1,X.Q.Li1,E.D.Wang2,W.P.Chen1 (1.College of Mechanical Engineering, South China... milling and the micromechanics of composite material, a plastic constitutive equation is implemented for milled composite powders. To check the equation, the extrusion of Ti/Al composite powders prepared......
