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

页码：309 / 312

页数：4

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