Effect of stress on μ phase formation in single crystal superalloys

被引：25

作者：

Cheng, KuiYu ^{[1
,2
]}

Jo, ChangYong ^{[2
]}

Jin, Tao ^{[1
]}

Hu, ZhuangQi ^{[1
]}

机构：

[1] Chinese Acad Sci, Superalloy Div, Inst Met Res, Shenyang, Peoples R China

[2] Korea Inst Mat Sci, High Temp Mat Lab, Chang Won, South Korea

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2011年 / 528卷 / 06期

关键词：

Single crystal superalloy; Topologically close-packed (TCP) phase; Thermal exposure; Rhenium (Re); KINETICS; CMSX-4;

D O I：

10.1016/j.msea.2010.12.004

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Precipitation behavior of the mu phase under applied stress was systematically investigated in two single crystal superalloys CMSX-4 and R0. The investigation has shown that both the sign and magnitude of the applied stress can affect the precipitation behavior of the mu phase with a certain degree of regularity. At first, the precipitation of the mu phase varied significantly when a small amount of stress was applied, regardless of whether the specimen is under tension or under compression. Under most conditions however, precipitation of the mu phase was restrained by this low application of stress. After increasing the applied stress, precipitation of the mu phase increased relative to the amount of tension or decreased under compression. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：2704 / 2710

页数：7

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