Influence of Temperature on Cr Atom Substitution Character in Ni-Cr-Al Alloy

被引：0
|
作者：
Chu Zhong [1 ,2 ]
Zhao Guoqun [2 ]
Chen Zheng [3 ]
机构：
[1] Qingdao Technol Univ, Mech Sch, Qingdao 266033, Peoples R China
[2] Shandong Univ, Jinan 250061, Peoples R China
[3] NW Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2012年 / 41卷 / 11期
关键词：
Ni-Cr-Al; substitution; simulation; microscope phase-field model; COMPUTER-SIMULATION; INTERMETALLICS; DECOMPOSITION; NI3AL; PHASE; FE;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The simulations of the influence of temperature on Cr atom substitution character in Ni-Cr-Al alloy were performed based on microscopic phase-field model. It is found that nonstoicheometric ordering L1(2) phases appear first with congruent ordering+spinodal decomposition mechanism, then followed by non-classical nucleation and growth mechanism with the rising of aging temperature, and the incubation period increases gradually at 873 similar to 1173 K. The volume fraction of L1(2) phases increases and that of D0(22) phases decreases. D0(22) phases disappear and only L1(2) phases are remained at 1173 K.
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页码：2021 / 2024
页数：4
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