Microstructural evolution of pure copper during friction-stir welding

被引：68

作者：

Mironov, S. ^{[1
]}

Inagaki, K. ^{[1
]}

Sato, Y. S. ^{[1
]}

Kokawa, H. ^{[1
]}

机构：

[1] Tohoku Univ, Dept Mat Proc, Grad Sch Engn, Aoba Ku, Sendai, Miyagi 9808579, Japan

来源：

PHILOSOPHICAL MAGAZINE | 2015年 / 95卷 / 04期

关键词：

microstructure; copper; friction-stir welding; texture; electron backscatter diffraction (EBSD); RECRYSTALLIZATION; TEXTURE; TORSION; JOINT;

D O I：

10.1080/14786435.2015.1006293

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microstructural evolution of pure copper during friction-stir welding was found to be principally influenced by welding temperature. At temperatures below ~0.5 T-m (where T-m is melting point), the microstructure was shown to be essentially determined by continuous recrystallization, leading to significant grain refinement and related material strengthening in the stir zone. In contrast, grain structure development at temperatures above ~0.5 T-m was dominated by discontinuous recrystallization producing a relatively coarse grain structure in the stir zone and giving rise to material softening.

引用

页码：367 / 381

页数：15

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