共搜索到34962条信息，每页显示10条信息，共3497页。用时：0小时0分0秒328毫秒
Interfacial Behavior of Sulfur and Yttrium in Yttrium Modified Ni3Al-Based Alloy IC6 during High Temperature Oxidation Process XIAO Cheng-bo1,HAN Ya-fang1 (1.Beijing Institute of Aeronautical... between oxide scale and substrate. Another reason of increasing the high temperature oxidation resistance of alloy IC6 by the addition of yttrium is that yttrium migrates to the grain boundaries of oxides......
Effect of Alloying Additions on the Oxidation of High Speed Steels under Dry and Wet Conditions () 摘要:An investigation has been carried out into the effects of chromium and vanadium content on the oxidation rate and on the adhesion of oxide scales grown on three different chemical compositions of high speed steels under dry and wet conditions. The oxidation tests were carried out......
......
; Abstract: Tension attachment of high temperature microscopy was proposed to research the microstructure evolution and plastic behavior of AZ31 magnesium alloy... and grain boundaries, suggesting both twinning-induced DRX and continuous DRX occurs in the deformation process. Key words: magnesium alloy; twinning; high temperature microscopy; microstructure ......
Crystallization of high stable Zr55Al10Ni5Cu30bulk amorphous alloySHEN Jun (沈 军), SUN Jian-fei (孙剑飞), GAO Yu-lai (高玉来), WANG Gang (王 刚), XING Da-wei (邢大伟), CHEN De-Min (陈德民), ZHOU Bi-de (周彼德)(School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China)Abstract:The crystallization process of Zr55Al10Ni5Cu30 bulk amorphous alloy in the supercooled liquid......
双态组织高Nb-TiAl合金的缺口敏感性许正芳1,徐向俊2,林均品31. 宝山钢铁股份有限公司研究院2. 中原工学院3. 北京科技大学新金属材料国家重点实验室摘 要:通过对圆棒状缺口试样和无缺口光滑试样进行单向拉伸试验,研究了双态组织高Nb-TiAl合金的缺口敏感性.研究表明,缺口根半径R≥0. 5 mm的U型试样和缺口角度60°,R≥1 mm的V型试样的抗拉强度RmN都大于光滑试样的抗拉强度Rm,缺口敏感度NSR均大于1,合金对缺口不敏感.当缺口类型相同时,缺口敏感性随缺口根半径R的减小而增大; V型缺口敏感性大于U型缺口;对于V型缺口试样,当R=0. 5 mm时,其NSR在0. 98~1. 03之间,RmN在Rm附近波动,易出现缺口敏感.关键词:高Nb-TiAl合金;双态组织;缺口敏......
Relationship between boundary misorientation angle and true strain during high temperature deformation of 7050 aluminum alloy HU Hui-e(胡会娥)1, YANG Li(杨 丽)1, ZHEN Liang(甄 良)1, SHAO Wen-zhu(邵文柱)1... and 1.0×10-2 s-1, and it is dynamic recovery when strain rate is 0.1 s-1. Key words: boundary misorientation angle; aluminum alloy; electron backscatter diffraction(EBSD); high temperature......
Effect of rolling processing on microstructure and electrochemical properties of high active aluminum alloy anode LIANG Shu-quan(梁叔全), ZHANG Yong(张 勇), GUAN Di-kai(官迪凯), TANG Yan(唐 艳), MAO Zhi... Aluminum alloy has been used as anode material of batteries due to its high capacity and negative potential. However, there are some serious disadvantages such as low electrochemical activity and low anti......
PHASE TRANSFORMATION BEHAVIOR AND MICROSTRUCTURE OBSERVATION OF Nb-Ru HIGH TEMPERATURE SHAPE MEMORY ALLOY X.Gao1,L.C.Zhao1,Y.F.Zheng1,W.Cai1 (1.School of Materials Science and Engineering, Harbin..., well-defined and coherent. Key words:Nb-Ru alloy; shape memory alloy (SMA); phase transformation; microstructure; [全文内容正在添加中] ......
高Nb-TiAl合金时效过程中的相变李莹1,周廉1,林均品2,常辉1,李峰11. 南京工业大学2. 北京科技大学新金属材料国家重点实验室摘 要:采用热分析(DSC),扫描电镜(BSEM),X射线衍射(XRD),维氏硬度等测试手段,系统地研究了固溶处理后的高Nb-TiAl合金在10001300℃时效过程中的相变与组织演变.结果表明:高Nb-TiAl合金固溶处理后,组织偏析未完全消除,并存在α2不稳定相;在连续升温过程中,在11921331℃之间,存在α2→α相变和γ→α相变;在1200℃时效,合金显微组织为α2/γ片层结构,在1300℃时效,显微组织为簇状结构.在1000℃与1100℃时效,随着时效时间的延长,合金的显微硬度呈现出先下降后上升的趋势,在12001300℃时效,随着时效时间的延长,合金的显......
