中间退火处理对6016冷轧铝合金板Roping纹和组织性能的影响

doi:10.13251/j.issn.0254-6051.2021.11.025

金属热处理 ›› 2021, Vol. 46 ›› Issue (11): 157-160.DOI: 10.13251/j.issn.0254-6051.2021.11.025

中间退火处理对6016冷轧铝合金板Roping纹和组织性能的影响

李大林^1,2,3, 朱鹏程¹, 王萍¹, 吕正风⁴, 张善顺¹

1.烟台南山学院材料科学与工程学院, 山东烟台 265713;
2.烟台南山学院山东省高校轻合金加工成形重点实验室, 山东烟台 265700;
3.烟台南山学院烟台市高性能铝合金材料加工成形及检测工程实验室, 山东烟台 265700;
4.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, 山东烟台 265700

收稿日期:2021-05-06 出版日期:2021-11-25 发布日期:2021-12-08
作者简介:李大林(1984—),男,讲师,硕士,主要研究方向为金属材料组织性能控制,E-mail:lidalin3@163.com
基金资助:
山东省高等学校青创科技计划(2019KJA019)

Influence of intermediate annealing on Roping pattern, microstructure and properties of cold rolled 6016 aluminum alloy plate

Li Dalin^1,2,3, Zhu Pengcheng¹, Wang Ping¹, Lü Zhengfeng⁴, Zhang Shanshun¹

1. School of Materials Science and Engineering, Yantai Nanshan University, Yantai Shandong 265713, China;
2. Light Alloy Processing Laboratory of Shandong Province High Education, Yantai Nanshan University, Yantai Shandong 265700, China;
3. High Performance Aluminum Alloy Material Processing, Forming and Testing Engineering Laboratory of Yantai City, Yantai Nanshan University, Yantai Shandong 265700, China;
4. National Engineering Research Center for Plastic Working of Aluminum Alloys, Shandong Nanshan Aluminum Co., Ltd., Yantai Shandong 265700, China

Received:2021-05-06 Online:2021-11-25 Published:2021-12-08

摘要/Abstract

摘要： 利用光学显微镜和透射电镜研究了冷轧过程中间退火处理对6016铝合金表面Roping纹和组织性能的影响,测试了包边性能,观察了微观组织。结果表明:经450 ℃保温1 h的中间退火处理后,减弱了基体组织中因轧制变形形成的不同取向晶粒的条带状分布程度,弱化了基体组织不均匀屈服延伸。450 ℃的中间退火处理使得6016铝合金板材表面Roping纹完全消失,包边因子仅有0.4,包边性能最优。经350 ℃和400 ℃的中间退火处理后,表面粗晶明显,晶粒尺寸达到400~550 μm,且基体内的弥散相尺寸大、数量多,尺寸达到50~100 nm。表面粗晶和大量的晶界析出相是包边性能恶化的主要原因。

关键词: 6016铝合金, Roping纹, 织构, 性能, 微观组织

Abstract: Influence of intermediate annealing on Roping pattern, microstructure and properties of the 6016 aluminum alloy was investigated by using optical microscope and TEM. The hemming property of the plate was tested, and its microstructure was characterized. The results indicate that after intermediate annealing at 450 ℃ for 1 h, the banded distribution of grains with different orientations formed by rolling deformation in the matrix structure is weakened, and the uneven yield extension of the matrix structure is weakened. The intermediate annealing treatment at 450 ℃ makes the Roping pattern on the surface of 6016 aluminum alloy plate disappear completely, the hemming value is only 0.4, and the hemming property is the best. After intermediate annealing at 350 ℃ and 400 ℃, the surface coarse grain is obvious, and the grain size reaches 400-550 μm. The size and quantity of dispersed phase in the matrix are large, and the size reaches 50-100 nm. Coarse surface grains and a large number of precipitates at grain boundaries are the main reasons for the deterioration of hemming property.

Key words: 6016 aluminum alloy, Roping pattern, texture, properties, microstructure

中图分类号:

TG156.1

李大林, 朱鹏程, 王萍, 吕正风, 张善顺. 中间退火处理对6016冷轧铝合金板Roping纹和组织性能的影响[J]. 金属热处理, 2021, 46(11): 157-160.

Li Dalin, Zhu Pengcheng, Wang Ping, Lü Zhengfeng, Zhang Shanshun. Influence of intermediate annealing on Roping pattern, microstructure and properties of cold rolled 6016 aluminum alloy plate[J]. Heat Treatment of Metals, 2021, 46(11): 157-160.

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中间退火处理对6016冷轧铝合金板Roping纹和组织性能的影响

Influence of intermediate annealing on Roping pattern, microstructure and properties of cold rolled 6016 aluminum alloy plate

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