Rafting structure formation during solution treatment in a nickel-based superalloy

被引：0
|
作者：
Zhao, Kai [1 ,2 ]
Lou, Langhong [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China
[2] Chongqing Univ Sci & Technol, Sch Met & Mat Engn, Chonguing, Peoples R China
来源：
INTERNATIONAL JOURNAL OF MATERIALS RESEARCH | 2012年 / 103卷 / 03期
关键词：
Superalloy; Rafting; Electron backscatter diffraction; Stress; HIGH-VOLUME FRACTION; SINGLE-CRYSTALS; INTERNAL-STRESSES; HIGH-TEMPERATURE; CREEP; GAMMA; PHASE; DIFFRACTION; MORPHOLOGY; MICROSTRUCTURE;
D O I：
10.3139/146.110589
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
When solution treatment was carried out at 1 553 K, a rafting structure formed even above the dissolution temperature of the gamma' phase in a liquid metal cooling directionally solidified nickel-based superalloy. This abnormal coarsening behavior may be induced by the phase transformation stress due to the dissolution of non-uniform distribution of the gamma/gamma' eutectic. Electron backscatter diffraction and transmission electron microscopy were employed to analyze the stress.
引用
收藏
页码：309 / 312
页数：4
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