Low strain rate deformation study in a two-phase TiAl based intermetallic alloy

被引：0

作者：

Meng, XK

Liu, ZG

Ngan, AHW

机构：

[1] NANJING UNIV,DEPT MAT SCI & ENGN,NANJING 210093,PEOPLES R CHINA

[2] UNIV HONG KONG,DEPT MECH ENGN,HONG KONG,HONG KONG

来源：

MATERIALS LETTERS | 1997年 / 30卷 / 2-3期

关键词：

TiAlV alloy; deformation; low strain rate; plastic deformation; TME; microstructure;

D O I：

10.1016/S0167-577X(96)00186-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Low strain rate deformation at an intermediate temperature in a two-phase TiAl based intermetallic alloy was studied by means of compression testing and TEM observation. Dislocation networks occurred at the initial deformation stage when the strain was small. When specimens were deformed for a longer period of time with larger strains, discontinuous subboundaries formed within the lamellae of the gamma TiAl/alpha(2)-Ti3Al structure. The formation of the subboundaries refined the original lamellae and so resulted in improved plasticity during low strain rate deformation.

引用

页码：137 / 139

页数：3

共 8 条

[1]

HASHIMOTO K, 1984, JIM FALL M OCT, P465

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