Transactions of Materials and Heat Treatment

Title：Influence of pre-stretching deformation on recrystallization structure and properties of 2024 aluminum alloy

Authors： Zhang Meng1 Zheng Chao1 Wang Haojun1 Ji Li2

Unit： 1.AVIC Xi′an Aircraft Industry Group Co. Ltd. Xi′an 710089 China 2.School of Material Science and Engineering Nanchang Hangkong University Nanchang 330063 China

KeyWords： 2024-O aluminum alloy solid solution heat treatment pre-deformation crystal structure recrystallization

ClassificationCode：TB31；TH142.3

year,vol(issue):pagenumber：2025,50(6):58-68

Abstract：

For 2024 aluminum alloy alclad sheets produced by ARCONIC INC and AMAG, the relationship between pre-stretching deformation and microstructure properties was investigated. The results demonstrate that 2024 aluminum alloy alclad sheets produced by ARCONIC INC has better forming performance than that produced by AMAG. When the pre-stretching deformation amount of 2024 aluminum alloy alclad sheets produced by AMAG reaches 7%-8%, the secondary recrystallization grains grow abnormally, and the alclad layer coarsens at a pre-stretching deformation of 4%. In contrast, 2024 aluminum alloy alclad sheets produced by ARCONIC INC undergoes recrystallization coarsening when the pre-stretching amount is 7%-8%, and the substrate does not show coarsening when the pre-stretching deformation amount reaches 16%. Thus, the research results have certain guiding significance for the production of domestic aluminum alloy materials.

Funds：

作者简介：张锰（1993-），男，博士，高级工程师,E-mail：249755783@qq.com;通信作者：吉丽（1988-），女，博士，讲师,E-mail：jili@nchu.edu.cn

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