Diffusion Research in BCC Ti-Al-Mo Ternary Alloys

被引:43
|
作者
Chen, Yi [1 ,2 ]
Tang, Bin [1 ]
Xu, Guanglong [2 ]
Wang, Chuanyun [1 ]
Kou, Hongchao [1 ]
Li, Jinshan [1 ]
Cui, Yuwen [2 ]
机构
[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
[2] IMDEA Mat Inst, Computat Alloy Design Grp, Madrid 28906, Spain
基金
中国国家自然科学基金;
关键词
TITANIUM-ALLOYS; SYSTEMS; COEFFICIENTS; PHASE; INTERDIFFUSION; EQUATIONS; PROFILES; ZR;
D O I
10.1007/s11661-014-2245-x
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Interdiffusion in Ti-Al-Mo beta solid solution was investigated at 1523 K (1250 A degrees C) by analyzing diffusion couples. From the concentration profiles analytically represented by error function expansion (ERFEX), the ternary interdiffusion coefficients and impurity diffusivity were extracted by the Whittle-Green and generalized Hall methods. A comparison of the diffusion in five Ti-Al-X (Co, Cr, Fe, Mo, and V) ternaries reveals Ti-Al-Mo is comparably like Ti-Al-(Cr, V) while Ti-Al-(Co, Fe) are predominantly of interstitial nature.
引用
收藏
页码:1647 / 1652
页数:6
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