Microscopic Phase-Field Simulation of Atom Substitution Behaviour in Ni--Cr--Al Alloy
CHU Zhong, CHEN Zheng, WANG Yong-Xin, LU Yan-Li, ZHANG Jian-Jun
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072
Microscopic Phase-Field Simulation of Atom Substitution Behaviour in Ni--Cr--Al Alloy
CHU Zhong;CHEN Zheng;WANG Yong-Xin;LU Yan-Li;ZHANG Jian-Jun
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072
关键词 ：
05.10.Gg ,
81.30.Hd ,
81.30.Mh
Abstract ： Simulations are performed on atom substitution behaviour in Ni75 Al25-x Crx alloys based on a microscopic phase-field model at 873K. The ordering of both the Al and Cr atoms takes place simultaneously, Cr occupies both the Al and Ni sites with a preference for the Al sites, and Cr and Al atoms together occupy the β -sites, and the complex γ’ Ni3 (Al1-x Crx ) (L12 structure) phases are formed during the precipitation. At the ordering boundary of L12 phases, Cr atoms occupy the Al sites, then Ni3 Cr phases are formed.
Key words ：
05.10.Gg
81.30.Hd
81.30.Mh
出版日期: 2005-08-01
:
05.10.Gg
(Stochastic analysis methods)
81.30.Hd
(Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder)
81.30.Mh
(Solid-phase precipitation)
引用本文:
CHU Zhong;CHEN Zheng;WANG Yong-Xin;LU Yan-Li;ZHANG Jian-Jun. Microscopic Phase-Field Simulation of Atom Substitution Behaviour in Ni--Cr--Al Alloy[J]. 中国物理快报, 2005, 22(8): 1841-1844.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2005/V22/I8/1841
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2005, Vol. 22 
