粉末冶金法制备高铌TiAl基合金的表征(英文)

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Bibliographic Details
Published in中国有色金属学会会刊：英文版 no. S2; pp. 491 - 495
Main Author 孙宏飞 李学问 冯杰 房文斌
Format Journal Article
LanguageEnglish
Published 2012
Subjects
TiAl基合金
复合材料
烧结块体
粉末冶金
颗粒尺寸
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ISSN1003-6326

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Bibliography:SUN Hong-fei1, LI Xue-wen1, FENG Jie1, FANG Wen-bin1,2 1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China; 2. School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China
43-1239/TG
利用机械球磨法制备了名义成分为Ti45Al10Nb(摩尔分数,%)的复合粉末,采用真空热压烧结工艺对粉末进行固结,利用OM、XRD、SEM、EDX对球磨12h的粉末及烧结块体材料进行表征。结果表明,所得Ti/Al/Nb复合粉末的成分均匀,晶粒细小。烧结后所得合金的显微组织由细小等轴晶和均匀分散其中的大的纯Nb颗粒组成。增加10%(摩尔分数)的Nb元素,TiAl基合金的室温强度及塑性有显著提高,屈服强度和断裂强度分别为842MPa和1314MPa,室温压缩率达到12.4
TiAl-based alloy;powder metallurgy;particle size;composites;sintered bulk
ISSN:1003-6326