Effect of recrystallization on room-temperature mechanical properties of Zr-doped Ni3Al alloy

被引：15

作者：

Li, YF ^{[1
]}

Guo, JT ^{[1
]}

Zhou, LZ ^{[1
]}

Ye, HQ ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Lab Atom Imaging Solid, Shenyang 110016, Peoples R China

来源：

MATERIALS LETTERS | 2004年 / 58卷 / 12-13期

关键词：

Zr-cloped Ni3Al; recrystallization; tensile properties; environment embrittlement;

D O I：

10.1016/j.matlet.2003.11.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The room-ternperature mechanical properties of Zr-doped Ni3Al alloy obtained by different heat treatments are investigated in the paper. The results show that the degree of recrystallization affects the mechanical properties of Ni3Al-Zr alloy. The variation of strength at room temperature accords well with recovery, recrystallization and grain growth; three stages of the typical annealing process. However, it is interesting that the variation of ductility at room temperature exhibits a contrary trend compared with that in the typical annealing process. The stress-relieved incompletely recrystallized specimens have the most desirable properties. The elongated or raw grain structure of as-rolled materials provides the minimum of transverse grain boundaries, and this disrupts the path of atomic hydrogen entering the specimen during tensile stressing, (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：1853 / 1856

页数：4

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