预处理对异步轧制6016铝合金板材成形性能的影响

doi:10.13251/j.issn.0254-6051.2020.12.014

金属热处理 ›› 2020, Vol. 45 ›› Issue (12): 76-81.DOI: 10.13251/j.issn.0254-6051.2020.12.014

预处理对异步轧制6016铝合金板材成形性能的影响

龙智勇, 袁鸽成, 陈成

广东工业大学材料与能源学院, 广东广州 510006

收稿日期:2020-08-13 出版日期:2020-12-25 发布日期:2021-01-14
通讯作者: 袁鸽成,教授,博士,E-mail: gchyuan@gdut.edu.cn
作者简介:龙智勇(1993—),男,硕士研究生,主要研究方向为先进轻金属材料的结构和性能的改善,E-mail:1246540695@qq.com。
基金资助:
广东省自然科学基金(2014A030313518); 广东省科技计划(2017A010103018)

Effect of pre-treatment on formability of asynchronous rolled 6016 Al alloy sheet

Long Zhiyong, Yuan Gecheng, Chen Cheng

School of Materials and Energy, Guangdong University of Technology, Guangzhou Guangdong 510006, China

Received:2020-08-13 Online:2020-12-25 Published:2021-01-14

摘要/Abstract

摘要： 通过拉伸试验、X射线衍射(XRD)和扫描电镜(SEM)等表征方法,研究了异步冷轧前预处理工艺对6016铝合金板材织构及成形性能的影响。结果表明:异步冷轧前预时效处理可提高该铝合金成品板材的强度而不明显降低其塑性,且其平面各向异性指数IPA值明显减小;塑性应变比$\bar{r}$值以及杯突值I_E成形性能指标均有所提高且分别达到0.89和8.27。铝合金板材获得较好综合性能的主要原因在于经时效预处理铝合金成品板材的剪切织构E{111}<110>和F{111}<112>的强度略微提高以及晶粒尺寸的减小。

关键词: 预处理, 异步轧制, 铝合金, 织构, 成形性能

Abstract: Effect of pre-treatment before asynchronous rolling on the texture and formability of 6016 aluminum alloy sheet was investigated by tensile test, X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results show that pre-aging treatment before asynchronous rolling can increase the strength of the aluminum alloy sheet without significantly reducing its plasticity, and its plane anisotropy IPA value is significantly reduced; plastic strain ratio $\bar{r}$ value and cupping value I_E are improved and reach 0.89 and 8.27 respectively. The main reason for the better comprehensive performance of the aluminum alloy sheet is the increase in the strength of the shear texture E{111}<110> and F{111} <112> and the decrease in the grain size.

Key words: pre-treatment, asynchronous rolling, aluminum alloy, texture, formability

中图分类号:

TG166

龙智勇, 袁鸽成, 陈成. 预处理对异步轧制6016铝合金板材成形性能的影响[J]. 金属热处理, 2020, 45(12): 76-81.

Long Zhiyong, Yuan Gecheng, Chen Cheng. Effect of pre-treatment on formability of asynchronous rolled 6016 Al alloy sheet[J]. Heat Treatment of Metals, 2020, 45(12): 76-81.

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预处理对异步轧制6016铝合金板材成形性能的影响

Effect of pre-treatment on formability of asynchronous rolled 6016 Al alloy sheet

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