Recovery kinetics in Al-0.3%Cu after heavy rolling

被引：1

作者：

Shuai, L. F. ^{[1
,4
]}

Huang, T. L. ^{[1
,2
]}

Wu, G. L. ^{[1
,2
]}

Hansen, N. ^{[1
,3
]}

Huang, X. ^{[1
,4
]}

Yu, T. ^{[4
]}

机构：

[1] Chongqing Univ, Coll Mat Sci & Engn, Joint Int Lab Light Alloys MOE, Chongqing 400045, Peoples R China

[2] Chongqing Univ, Electron Microscopy Ctr, Chongqing 400045, Peoples R China

[3] Tech Univ Denmark, Riso Campus, DK-4000 Roskilde, Denmark

[4] Tech Univ Denmark, Dept Mech Engn, DK-2800 Lyngby, Denmark

来源：

40TH RISO INTERNATIONAL SYMPOSIUM ON MATERIALS SCIENCE: METAL MICROSTRUCTURES IN 2D, 3D AND 4D | 2019年 / 580卷

基金：

欧洲研究理事会;

关键词：

TRIPLE JUNCTION MOTION; ALUMINUM; MODEL;

D O I：

10.1088/1757-899X/580/1/012044

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The recovery kinetics of a nanoscale lamellar structure Al-0.3%Cu alloy, which was produced by 98% cold rolling, during annealing at temperatures from 100 to 200 degrees C have been analyzed in this study. Microstructural characterization using electron channelling contrast in the scanning electron microscope shows a uniform coarsening of the lamellar structure and gradual precipitation of second phase particles (Al2Cu) during annealing at these temperatures. Fitting of the microhardness values for samples annealed for between 4 and 4096 minutes at different temperatures with a recovery model reveals a change, in the apparent activation energy from 79 kJ/mol at the beginning to 105 kJ/mol at the end of recovery annealing, which leads to a discussion of the recovery mechanisms.

引用

页数：6

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