终轧温度及退火温度对5052铝合金板材组织及性能的影响

doi:10.13251/j.issn.0254-6051.2021.09.013

金属热处理 ›› 2021, Vol. 46 ›› Issue (9): 79-84.DOI: 10.13251/j.issn.0254-6051.2021.09.013

终轧温度及退火温度对5052铝合金板材组织及性能的影响

黄娟¹, 黄元春^1,2, 申振宇², 李湘粤¹, 曾渝^3,4, 杨庚辰^3,4

1.中南大学材料科学与工程学院, 湖南长沙 410083;
2.中南大学轻合金研究院, 湖南长沙 410083;
3.宝山钢铁股份有限公司中央研究院宝武铝业技术中心, 上海 201999;
4.中国宝武三门峡铝基新材料研发中心, 河南三门峡 472000

收稿日期:2021-04-04 出版日期:2021-09-25 发布日期:2021-12-09
通讯作者: 黄元春,教授,博士,E-mail:science@csu.edu.cn
作者简介:黄娟(1994—),女,硕士研究生,主要研究方向为中强耐蚀合金热处理技术,E-mail:huang_juan12@163.com。

Effect of finish rolling temperature and annealing temperature on microstructure and properties of 5052 aluminum alloy sheet

Huang Juan¹, Huang Yuanchun^1,2, Shen Zhenyu², Li Xiangyue¹, Zeng Yu^3,4, Yang Gengchen^3,4

1. School of Materials Science and Engineering, Central South University, Changsha Hunan 410083, China;
2. Light Alloy Research Institute, Central South University, Changsha Hunan 410083, China;
3. Baowu Aluminum R&D Center, Research Institute, BaoShan Iron & Steel Co., Ltd., Shanghai 201999, China;
4. Sanmenxia Aluminum-based New Material R&D Center, China Baowu Steel Group Co., Ltd., Sanmenxia Henan 472000, China

Received:2021-04-04 Online:2021-09-25 Published:2021-12-09

摘要/Abstract

摘要： 采用拉伸和硬度测试、显微组织及拉伸断口观察等方法研究了终轧温度及退火温度对5052铝合金板材组织及性能的影响。结果表明,未经退火时,板材表层已经发生再结晶,而中心层组织仅发生回复过程。退火处理后,随退火温度的升高,合金板材的强度、硬度下降,而伸长率增加。5052铝合金终轧温度不低于330 ℃时,可在后续的冷加工获得较为均匀的组织,经400~500 ℃退火可获得综合性能较为优异(R_m≥175 MPa、R_p0.2≥65 MPa和A≥32%)的5052-O态合金板材。

关键词: 5052铝合金, 终轧温度, 退火温度, 组织与性能

Abstract: Effects of finish rolling temperature and annealing temperature on microstructure and properties of the 5052 aluminum alloy sheet were studied by using tensile and hardness tests, microstructure and tensile fracture observation. The results show that, without annealing after rolling the recrystallization occur on the surface layer of the sheet,while only a recovery process occurs in the center layer structure. After annealing, with the increase of annealing temperature, the strength and hardness of the alloy sheet decrease, but the elongation increases. When the final rolling temperature of the 5052 aluminum alloy is not lower than 330 ℃, a uniform microstructure can be obtained during the subsequent cold working, and a more excellent comprehensive properties of 5052-O state alloy sheet can be obtained after annealing at 400-500 ℃, at which the mechanical properties are R_m≥175 MPa,R_p0.2≥65 MPa and A≥32%.

Key words: 5052 aluminum alloy, finish rolling temperature, annealing temperature, microstructure and properties

中图分类号:

黄娟, 黄元春, 申振宇, 李湘粤, 曾渝, 杨庚辰. 终轧温度及退火温度对5052铝合金板材组织及性能的影响[J]. 金属热处理, 2021, 46(9): 79-84.

Huang Juan, Huang Yuanchun, Shen Zhenyu, Li Xiangyue, Zeng Yu, Yang Gengchen. Effect of finish rolling temperature and annealing temperature on microstructure and properties of 5052 aluminum alloy sheet[J]. Heat Treatment of Metals, 2021, 46(9): 79-84.

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终轧温度及退火温度对5052铝合金板材组织及性能的影响

Effect of finish rolling temperature and annealing temperature on microstructure and properties of 5052 aluminum alloy sheet

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