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挤压12道次后, 铜的平均晶粒尺寸为400nm. 关键词: 铜; 连续等径角挤压; 超细晶; 有限元模拟 中图分类号: TG379; TG376 文献标识码: A Ultra-fine grain copper prepared by continuous equal channel angular press YUN Xin-bing1, 2, SONG Bao-yun2...) Abstract: The continuous equal channel angular pressing introduced is a new method to produce ultra-fine grain(UFG) materials, which applies continuous extrusion technology in ECAP technology......
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with 8.0, 4.0, 1.5, 0.8 μm Ti(C, N) powders are named as ultra-coarse grain cermet(UCGC), coarse grain cermet(CGC), medium grain cermet(MGC) and fine grain cermet (FGC), respectively. The WC-8 wt.% Co... scale at 1440 °C for 1 h, and cermets of different grain size were obtained. Ultra-fine grains of Ti(C, N) powders were not used in this paper because of the high oxygen content and unstable properties......
Mechanical and Microstructural Properties of Ultra-fine Grained AZ91Magnesium Alloy Tubes Processed via Multi Pass Tubular Channel Angular Pressing(TCAP)G.Faraji1,P.Yavari2,S.Aghdamifar2,M.Mosavi... University摘 要:Ultra-fine grained(UFG) cylindrical tubes were produced via recently developed tubular channel angular pressing(TCAP) process through different......
Microstructure and properties of ultra-fine tungsten heavy alloys prepared by mechanical alloying and electric current activated sintering LI Xiao-qiang(李小强), XIN Hong-wei(辛红伟), HU Ke(胡 可), LI... current sintering, and deformation strengthening, etc[6-9]. Among these ways, MA technique developed by BENJAMIN[10] is an advanced fabrication process that can cheaply produce powders with ultra-fine......
Mechanical wet-milling and subsequent consolidation of ultra-fine Al2O3-(ZrO2+3%Y2O3) bioceramics by using high-frequency induction heat sintering Khalil Abdelrazek KHALIL, Sug Won KIM Division... of this study was to synthesize and sinter alumina-3YSZ powders with fine grain size and homogeneous constituent distribution using HFIHS. 2 Experimental Alumina powders (mean particle size 2.91 mm,purity 99.5......
; 文章编号:1672-7207(2018)08-1851-06 Influence of degassing on aggregation of ultra-fine scheelite particles CHEN Hao, OU Leming, ZHOU Weiguang (School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China) Abstract: The influence of degassing on aggregation of ultra-fine scheelite was studied through sedimentation test, Zeta potential measurement......
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Trans. Nonferrous Met. Soc. China 25(2015) 3685-3693 Preparation of ultra-fine grain Ni-Al-WC coating with interlocking bonding on austenitic stainless steel by laser clad and friction stir... alongside with dry sliding wear test. The results show that the severe deformation effect exerted on the specimen resulted in an ultra-fine grain layer of about 100 μm in thickness and grain size......
Thermo-stability of ultra-fine non-equilibrium microstructuresHuibin Wu, Shanwu Yang, Aimin Guo, Shaoqiang Yuan, Chengjia Shang, and Xinlai HeMaterials Science and Engineering School, University.... These results indicate that the thermo-stability of fine non-equilibrium microstructures is tightly related to their history.关键词:......