脉冲磁场时效处理ZL205A铝合金的显微组织和力学性能

doi:10.13251/j.issn.0254-6051.2025.01.015

金属热处理 ›› 2025, Vol. 50 ›› Issue (1): 97-102.DOI: 10.13251/j.issn.0254-6051.2025.01.015

脉冲磁场时效处理ZL205A铝合金的显微组织和力学性能

张颖, 麻永林, 刘永珍, 邢淑清

内蒙古科技大学材料与冶金学院, 内蒙古包头 014010

收稿日期:2024-08-05 修回日期:2024-11-12 出版日期:2025-01-25 发布日期:2025-03-12
通讯作者: 刘永珍,讲师,E-mail:liuyz0424@163.com
作者简介:张颖(1998—),女,硕士研究生,主要研究方向为脉冲磁场热处理对铝合金组织和性能的影响,E-mail:zhangying980908@163.com。
基金资助:
内蒙古科技大学基本科研业务费专项(2023QNJS012)

Microstructure and mechanical properties of ZL205A aluminum alloy aged under pulsed magnetic field

Zhang Ying, Ma Yonglin, Liu Yongzhen, Xing Shuqing

School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou Inner Mongolia 014010, China

Received:2024-08-05 Revised:2024-11-12 Online:2025-01-25 Published:2025-03-12

摘要/Abstract

摘要： 利用扫描电镜、X射线衍射仪、万能试验机研究了脉冲磁场时效处理对ZL205A铝合金显微组织和力学性能的影响。结果表明,脉冲磁场在ZL205A铝合金时效过程中,增加了空位形成能ΔS_V,原子扩散更容易,使得时效后,基体中出现均匀细小的析出相。经脉冲磁场时效处理(195 ℃×4 h )后,抗拉强度和伸长率分别为408 MPa和11%,与某工厂常规时效工艺(155 ℃×9 h)相比,抗拉强度基本持平,伸长率提高了64%,时效时间缩短了55%。

关键词: ZL205A铝合金, 脉冲磁场, 时效处理, 扩散

Abstract: Effect of aging under pulsed magnetic field on microstructure and mechanical properties of ZL205A aluminum alloy was studied by means of scanning electron microscope, X-ray diffractometer and universal testing machine. The results show that the pulsed magnetic field increases the vacancy formation energy ΔS_V during the aging process of the ZL205A aluminum alloy, and the atomic diffusion is easier, which leads to the appearance of uniform and fine precipitation phases in the matrix after aging. After the pulsed magnetic field aging treatment (195 ℃×4 h), the tensile strength and elongation are 408 MPa and 11%, respectively. Compared with the conventional aging treatment (155 ℃×9 h) in a factory, the tensile strength is basically the same, the elongation is 64% higher and the aging time is 55% shorter.

Key words: ZL205A aluminum alloy, pulsed magnetic field, aging treatment, diffusion

中图分类号:

TG146.21

张颖, 麻永林, 刘永珍, 邢淑清. 脉冲磁场时效处理ZL205A铝合金的显微组织和力学性能[J]. 金属热处理, 2025, 50(1): 97-102.

Zhang Ying, Ma Yonglin, Liu Yongzhen, Xing Shuqing. Microstructure and mechanical properties of ZL205A aluminum alloy aged under pulsed magnetic field[J]. Heat Treatment of Metals, 2025, 50(1): 97-102.

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脉冲磁场时效处理ZL205A铝合金的显微组织和力学性能

Microstructure and mechanical properties of ZL205A aluminum alloy aged under pulsed magnetic field

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