均匀化处理对3003铝合金铸锭微观组织的影响

doi:10.13251/j.issn.0254-6051.2024.09.038

金属热处理 ›› 2024, Vol. 49 ›› Issue (9): 236-241.DOI: 10.13251/j.issn.0254-6051.2024.09.038

均匀化处理对3003铝合金铸锭微观组织的影响

张伟^1,2, 陈子健³, 蔺永诚^1,3

1.中南大学轻合金研究院, 湖南长沙 410083;
2.湖南中创空天新材料股份有限公司, 湖南岳阳 414000;
3.中南大学机电工程学院, 湖南长沙 410083

收稿日期:2024-03-01 修回日期:2024-07-27 出版日期:2024-09-25 发布日期:2024-10-29
作者简介:张伟(1977—),男,高级工程师,博士研究生,主要研究方向为高性能铝合金材料与构件,E-mail: zhangweicsu@126.com

Effect of homogenization on microstructure of 3003 aluminium alloy ingot

Zhang Wei^1,2, Chen Zijian³, Lin Yongcheng^1,3

1. Light Alloy Research Institute, Central South University, Changsha Hunan 410083, China;
2. Hunan InnoChina Advanced Materials Co., Ltd., Yueyang Hunan 414000, China;
3. School of Mechanical and Electrical Engineering, Central South University, Changsha Hunan 410083, China

Received:2024-03-01 Revised:2024-07-27 Online:2024-09-25 Published:2024-10-29

摘要/Abstract

摘要： 将3003铝合金铸锭分别在580~620 ℃进行4~10 h的均匀化处理,研究不同均匀化处理工艺对3003铝合金铸锭微观组织演变的影响。结果表明,3003铝合金铸锭中的析出相主要为MnAl₆((FeMn)Al₆)和Al_0.41MnSi_0.74(Al₁₂(FeMn)₃Si),MnAl₆((FeMn)Al₆)相在均匀化过程中几乎完全溶解;而Al_0.41MnSi_0.74(Al₁₂(FeMn)₃Si)相会在均匀化过程中逐步发生聚合、粗化和回溶行为。随着均匀化温度的升高和时间的延长,析出相的演变会逐渐加快。3003铝合金能快速获得均匀分布、圆润粗大析出相的最优均匀化工艺为600 ℃保温8 h。

关键词: 均匀化处理, 3003铝合金, 析出相

Abstract: Homogenization treatment was carried out at 580-620 ℃ for 4-10 h to study the effect of different homogenization processes on the microstructure evolution of 3003 aluminium alloy ingot. The results show that the precipitates in the alloy ingot are mainly MnAl₆((FeMn)Al₆) and Al_0.41MnSi_0.74(Al₁₂(FeMn)₃Si), while the MnAl₆((FeMn)Al₆) phase is almost completely dissolved during the homogenization process. However, the Al_0.41MnSi_0.74(Al₁₂(FeMn)₃Si) phase is gradually subject to aggregation, coarsening and dissolution during the homogenization process. With the increase of homogenization temperature and prolongation of holding time, the evolution of precipitates is accelerated gradually. The optimum homogenization process of the 3003 aluminium alloy which can quickly obtain uniformly distributed, round and coarse precipitates is holding at 600 ℃ for 8 h.

Key words: homogenization treatment, 3003 aluminium alloy, precipitated phase

中图分类号:

TG146.2

张伟, 陈子健, 蔺永诚. 均匀化处理对3003铝合金铸锭微观组织的影响[J]. 金属热处理, 2024, 49(9): 236-241.

Zhang Wei, Chen Zijian, Lin Yongcheng. Effect of homogenization on microstructure of 3003 aluminium alloy ingot[J]. Heat Treatment of Metals, 2024, 49(9): 236-241.

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均匀化处理对3003铝合金铸锭微观组织的影响

Effect of homogenization on microstructure of 3003 aluminium alloy ingot

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