Continuous dynamic recrystallization of extruded NiAl polycrystals during the superplastic deformation process

被引：10

作者：

Du, XH ^{[1
]}

Wu, BL ^{[1
]}

机构：

[1] Shenyang Inst Aeronaut Engn, Dept Mat Engn, Shenyang 110034, Peoples R China

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2005年 / 36A卷 / 12期

关键词：

D O I：

10.1007/s11661-005-0009-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The tensile deformation behavior and the associated mechanism of extruded Ni50Al50 polycrystals were systemically investigated. The superplastic deformation behavior was observed at certain conditions. The deformation microstructures consisted of subgrains, low-angle grains, and high-angle grains, meaning that a continuous dynamic recrystallization (CDRX) process was operating. This finding suggests that the relative balance between comparable work hardening (dislocation glide) and dynamic work softening (CDRX) results in the occurrence of superplastic deformation process.

引用

页码：3343 / 3351

页数：9

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