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Evolution of Microstructure and Microsegregation of Ti-45Al-8Nb Alloy during Directional Solidification
文献类型:期刊
作者:Xu, Xiangjun[1]  Hu, Rui[2]  Lin, Junpin[3]  Guo, Jian[4]  
机构:[1]Yangtze Normal Univ, Sch Mat Sci & Engn, Chongqing 408100, Peoples R China.;
[2]Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China.;
[3]Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China.;
[4]Zhongyuan Univ Technol, Mat & Chem Sch, Zhengzhou 450007, Henan, Peoples R China.;
通讯作者:Xu, XJ (reprint author), Yangtze Normal Univ, Sch Mat Sci & Engn, Chongqing 408100, Peoples R China.
年:2018
期刊名称:ADVANCES IN MATERIALS SCIENCE AND ENGINEERING影响因子和分区
增刊:正刊
收录情况:SCI(E)(WOS:000447883000001)  
所属部门:材料学院
被引频次:1
人气指数:87
浏览次数:87
基金:fund of the State Key Laboratory of Solidification Processing in NWPU [SKLSP201647]; National Natural Science Foundation of China [51671016]; Henan Natural Science Foundation [162300410342]; Chongqing Science and Technology Commission [cstc2018jcyjAX0727]
摘要:
High Nb-containing TiAl alloys have good oxidation resistance and mechanical properties, but the microstructure and the properties are substantially affected by the segregation. To quantitatively investigate the segregation behavior of Al during solidification, microstructures of directionally solidified (DS) Ti-45Al-8Nb (in atomic percent) alloy prepared at withdrawing rates of 30 mu m/s and 200 mu m/s and a temperature gradient of 4200 K/m were observed by optical microscope and electronic pro ...More
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