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Trans. Nonferrous Met. Soc. China 22(2012) 2877-2882 Morphology and crystallography of β precipitate phase in Mg-Gd-Y-Nd-Zr alloy LI Ting1, DU Zhi-wei2, ZHANG Kui1, LI Xing-gang1, YUAN Jia-wei1, LI... microscopy and transmission electron microscopy. Compositions were determined for β phase using thin foil energy dispersive spectroscopy. Precipitation at 400 °C involves formation of platelet and block......
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马氏体相变晶体学的简易矢量分析方法顾新福1,张文征1(1.北京市清华大学材料科学与工程系先进材料实验室)摘 要:基于界面错配可以通过一组缺陷松弛的假设,发展了一种简易矢量分析法来计算界面包含一组缺陷的系统的相变晶体学.通过该方法可以方便地求解惯习面的取向.本文运用该方法求解了fcc/bcc系统中经典马氏体表象理论对应的相变晶体学,所有计算结果与文献报道完全一致.并根据矢量分析方法求解了满足上述假设条件惯习面取向的一般表达式.这一结果对系统地研究fcc/bcc中无理取向的惯习面提供了简便的分析工具.......
Preparation of Al(OH)3 by ion membrane electrolysis and precipitation of sodium aluminate solution with seeds LI Yuan-gao(李元高)1, 2, CHEN Qi-yuan(陈启元)2, WANG Song-sen(王松森)2, YIN Zhou-lan(尹周澜)2...; Abstract: The preparation of Al(OH)3 by the ion exchange membrane electrolysis followed by the precipitation of sodium aluminate solution with seeds......
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Effects of secondary precipitation on recrystallization in Co-base superalloy DZ40M ZHAO Yang(赵 阳), WANG Lei(王 磊), YU Teng(于 腾), SONG Xiu(宋 秀) Key Laboratory for Anisotropy and Texture... on the recrystallization of directionally solidified cobalt-base superalloy DZ40M. It is found that the secondary M23C6 precipitation influences the size and shape of the recrystal grains. When the annealing......
Effect of precipitation on internal friction of AZ91 magnesium alloy LIU Shu-wei(刘树伟), JIANG Hai-chang(姜海昌), LI Xiu-yan(李秀艳), RONG Li-jian(戎利建) Department of Materials for Special Environments, Institute of Metal Research,Chinese Academy of Sciences, Shenyang 110016, China Received 23 September 2009; accepted 30 January 2010 Abstract: The effect of precipitation on the internal......