The effect of strain rate on the room temperature tensile properties of single crystal superalloys

被引：23

作者：

Nazmy, M ^{[1
]}

Künzler, A ^{[1
]}

Denk, J ^{[1
]}

Baumann, R ^{[1
]}

机构：

[1] ALSTOM Ltd, Dept Mat Technol, CH-5401 Baden, Switzerland

来源：

SCRIPTA MATERIALIA | 2002年 / 47卷 / 08期

关键词：

nickel based superalloys; single crystal; strain rate; environmental cracking; hydrogen embrittlement; microstructure; degradation;

D O I：

10.1016/S1359-6462(02)00194-X

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The nickel base superalloys N5, CMSX2, CMSX6, CMSX11B and PWA1483, with rafted structure, exhibited marked drop in tensile ductility, depending on the strain rate, in moist environment at room temperature. Additionally, the embrittelement behaviour of these alloys was accompanied by fracture on {100} planes. This strain rate dependent embrittelement of rafted superalloys is similar to the environmental effects observed in Ni3Al. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：521 / 525

页数：5

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