Variation of crystal orientation during epitaxial growth of dendrites by laser deposition

查看全文 作　　者：Guowei [1,2]Wang;Jingjing [1]Liang;Yizhou [1]Zhou;Libin [3]Zhao;Tao [1]Jin;Xiaofeng [1]Sun

机构地区：[1]Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China;[2]School of Materials Science and Engineering,University of Science and Technology of China,Hefei 230026,China;[3]Xi'an Aero-engine Control Technology Co.Ltd,Xi'an 710077,China

出　　处：《Journal of Materials Science & Technology》索引2018年第34卷第4期,共4页

基　　金：financially supported by the National Natural Science Foundation of China(Grant Nos.51401210 and 51271186),;the National High Technology Research and Development Program of China(“863 Program”,Grant No.2014AA041701) 摘　　要：A nickel-based superalloy was deposited onto a single crystal substrate based on epitaxial laser metal forming(E-LMF). The microstructure development in two depositions has been researched. For the first time, the crystal orientation of dendrites varying beyond 20° was found when the dendrites deflected in deposition. In addition, a new grain boundary was found between different orientation dendrites in a grain, and the detected grain boundary angle was 23°. The result shows that flowing field in laser pool is responsible for this phenomenon. 关键词：取向附生树突激光水晶生长期微观结构边界角谷物

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Variation of crystal orientation during epitaxial growth of dendrites by laser deposition

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