锻压技术

预拉伸变形对2024铝合金再结晶组织与性能的影响

英文标题：Influence of pre-stretching deformation on recrystallization structure and properties of 2024 aluminum alloy

作者：张锰1 郑超1 王浩军1 吉丽2

单位：1.中航西安飞机工业集团股份有限公司陕西西安 710089 2.南昌航空大学材料科学与工程学院江西南昌 330063

关键词：2024-O铝合金固溶热处理预变形粗晶再结晶

分类号：TB31；TH142.3

出版年,卷(期):页码：2025,50(6):58-68

摘要：

针对ARCONIC INC和AMAG生产的2024铝合金包铝板材开展了预拉伸变形与组织性能之间关系的研究，结果表明，ARCONIC INC生产的2024铝合金包铝板材较AMAG生产的具有更优的成形性能，AMAG生产的2024铝合金包铝板在预拉伸变形量达到7%~8%时，发生二次再结晶晶粒异常长大，包铝层在预拉伸变形量为4%时即发生粗化，而ARCONIC INC生产的2024铝合金包铝板在预拉伸变形量为7%~8%时发生再结晶粗化，基材在预拉伸变形量达到16%时也未表现出粗化现象。研究结果对于国产铝合金材料生产具有一定的指导意义。

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.

基金项目：

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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