Effect of equal channel angular pressing on the thermal-annealing-induced microstructure and texture evolution of cold-rolled copper

被引：37

作者：

Mao, Z. N. ^{[1
]}

Gu, R. C. ^{[1
]}

Liu, F. ^{[1
]}

Liu, Y. ^{[1
]}

Liao, X. Z. ^{[2
]}

Wang, J. T. ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Jiangsu, Peoples R China

[2] Univ Sydney, Sch Aerosp Mech & Mechatron Engn, Sydney, NSW 2006, Australia

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2016年 / 674卷

基金：

澳大利亚研究理事会;

关键词：

Equal channel angular pressing; Cold-rolling; Recrystallization; Texture evolution; Copper; SEVERE PLASTIC-DEFORMATION; MECHANICAL-PROPERTIES; STORED ENERGY; PURE COPPER; GRAIN-REFINEMENT; RECRYSTALLIZATION TEXTURES; BACK-PRESSURE; CUBE TEXTURE; ECAP; STABILITY;

D O I：

10.1016/j.msea.2016.07.050

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effect of equal channel angular pressing, (ECAP) on the recrystallization-induced microstructure and texture evolution of cold-rolled (CR) pure copper was investigated. Compared with CR copper, ECAP+CR copper had finer recrystallized grains because the large stored energy introduced by ECAP led to a higher nucleation rate for the recrystallization. While preferred nucleation with the formation of nucleation site bands and preferred growth along the rolling direction occurred in CR copper, much more uniform nucleation and equiaxed growth of recrystallized grains occurred in ECAP+CR copper. In contrast to the annealed CR copper in which a weak retained rolling texture was observed, the annealed ECAP+CR copper presented a strong cube texture after recrystallization. Mechanisms of the texture evolution are also discussed. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：186 / 192

页数：7

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