Dynamic strain aging in a new Ni-Co base superalloy

被引：88

作者：

Cui, C. Y. ^{[1
]}

Gu, Y. F. ^{[1
]}

Yuan, Y. ^{[1
]}

Harada, H. ^{[1
]}

机构：

[1] Natl Inst Mat Sci, High Temp Mat Ctr, Tsukuba, Ibaraki 3050047, Japan

来源：

SCRIPTA MATERIALIA | 2011年 / 64卷 / 06期

关键词：

Forming processes-forging; Tension test; Nickel alloys; Dynamic strain aging; ALLOYS; BEHAVIOR; FLOW;

D O I：

10.1016/j.scriptamat.2010.11.025

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Dynamic strain aging (DSA) in a newly developed Ni-Co superalloy, TMW-2, was examined at temperatures ranging from room temperature to 600 degrees C and strain rates between 3 x 10(-2) and 8 x 10(-5) s(-1). The alloy exhibited both normal and inverse DSA effects at the temperatures and strain rates tested. Transmission electron microscopy evidence suggests that the normal behavior is associated with conventional DSA due to dynamic dislocation-solute interaction, while the inverse behavior may be related to the occurrence of stacking faults. Crown Copyright (C) 2010 Published by Elsevier Ltd. on behalf of Acta Materialia Inc. All rights reserved.

引用

页码：502 / 505

页数：4

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