Microanalysis of precipitates in Ti-Al alloy

被引:0
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作者
Zheng, JG [1 ]
机构
[1] Univ Liverpool, Dept Engn, Liverpool L69 3GH, Merseyside, England
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中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
Nitride precipitates in TiAl alloys have been studied by microdiffraction and microanalysis on TEM and STEM. They have the perovskite crystal structure and needle-like shape. A higher Ti/Al ratio and a higher N concentration were detected in the precipitates as compared with the matrix. Defects play an important role in the formation of the precipitates.
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页码:435 / 438
页数:4
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