不同装炉卷数6016铝合金板材组织性能对比

doi:10.13251/j.issn.0254-6051.2024.01.006

金属热处理 ›› 2024, Vol. 49 ›› Issue (1): 39-47.DOI: 10.13251/j.issn.0254-6051.2024.01.006

不同装炉卷数6016铝合金板材组织性能对比

孙宁^1,2, 徐志远¹, 杨立民¹, 李星辉¹, 张浩¹, 李延成¹, 李涛¹

1. 山东南山铝业股份有限公司国家铝合金压力加工工程技术研究中心, 山东龙口 265713;
2. 烟台南山学院, 山东龙口 265713

收稿日期:2023-08-18 修回日期:2023-11-22 发布日期:2024-02-29
作者简介:孙宁(1987—),女,硕士,主要研究方向为铝合金汽车板成分设计、热加工、热处理等,E-mail: ningsun95@163.com

Comparison on microstructure and properties of 6016 aluminum alloy sheet with different coils number of furnace charging

Sun Ning^1,2, Xu Zhiyuan¹, Yang Limin¹, Li Xinghui¹, Zhang Hao¹, Li Yancheng¹, Li Tao¹

1. National Engineering Research Center for Plastic Working of Aluminium Alloys, Longkou Shandong 265713, China;
2. Yantai Nanshan University, Longkou Shandong 265713, China

Received:2023-08-18 Revised:2023-11-22 Published:2024-02-29

摘要/Abstract

摘要： 通过OM、SEM、EBSD、TEM、XRD及拉伸试验对不同装炉卷数6016铝合金板材微观组织及性能进行系统研究。结果表明,装炉2卷的6016铝合金板材抗拉强度和屈服强度均较低,且均匀延伸率较高,板材表面罗平线效果好。6016铝合金板材晶内弥散相尺寸不一,晶界析出Mg₂Si相主要呈条状、块状分布,且装炉3卷的板材相较2卷板材的析出相尺寸偏大,这是因为中间退火过程中较长的升温、降温时间导致析出相发生一定程度的长大、粗化。此外,装炉3卷的6016板材存在聚集分布的Goss织构和Cube织构,容易引起板材表面出现罗平线,对板材的表面质量有害。

关键词: 6016铝合金, 装炉卷数, 微观组织, 力学性能

Abstract: Microstructure and properties of 6016 aluminum alloy sheet with different coils number of furnace charging were systematically studied by means of OM, SEM, EBSD, TEM, XRD and tensile tests. The results show that the tensile strength and yield strength of the 6016 aluminum alloy sheet with two coils of furnace charging are relatively low, and the uniform elongation is higher, and the effect of roping line on the surface of the sheet is good. The size of the dispersed phase in the 6016 aluminum alloy sheet is different. The precipitated Mg₂Si phase at the grain boundary is mainly distributed in strips and blocks, but the size of the precipitated phase in the sheet with three coils of furnace charging is relatively larger. This is because the longer heating and cooling time during the intermediate annealing process causes the precipitated phase to grow and coarsen to a certain extent. In addition, the 6016 sheet with three coils of furnace charging exits aggregated Goss texture and Cube texture, which can easily cause roping lines on the surface of the sheet and be harmful to the surface quality of the sheet.

Key words: 6016 aluminum alloy, coils number in furnace, microstructure, mechanical properties

中图分类号:

TG146.2⁺1

孙宁, 徐志远, 杨立民, 李星辉, 张浩, 李延成, 李涛. 不同装炉卷数6016铝合金板材组织性能对比[J]. 金属热处理, 2024, 49(1): 39-47.

Sun Ning, Xu Zhiyuan, Yang Limin, Li Xinghui, Zhang Hao, Li Yancheng, Li Tao. Comparison on microstructure and properties of 6016 aluminum alloy sheet with different coils number of furnace charging[J]. Heat Treatment of Metals, 2024, 49(1): 39-47.

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不同装炉卷数6016铝合金板材组织性能对比

Comparison on microstructure and properties of 6016 aluminum alloy sheet with different coils number of furnace charging

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