时效处理对Al-Mg-4.5Si-4.5Zn合金性能的影响

doi:10.13251/j.issn.0254-6051.2021.10.020

金属热处理 ›› 2021, Vol. 46 ›› Issue (10): 117-121.DOI: 10.13251/j.issn.0254-6051.2021.10.020

时效处理对Al-Mg-4.5Si-4.5Zn合金性能的影响

孙跃军¹, 仲丽¹, 崔泽文², 赵康培¹, 丁代存¹, 王雷¹

1.山东交通学院工程机械学院, 山东济南 250357;
2.长城汽车股份有限公司保定技术研发分公司, 河北保定 071000

收稿日期:2021-05-07 出版日期:2021-10-25 发布日期:2021-12-08
作者简介:孙跃军(1972—),男,教授,博士,主要研究方向为铝合金强韧化机理及应用,E-mail:sunyuejun0001@163.com
基金资助:
山东省自然科学基金(ZR2020ME109);山东省高等学校科技计划(J17KB006)

Effect of aging treatment on properties of Al-Mg-4.5Si-4.5Zn alloy

Sun Yuejun¹, Zhong Li¹, Cui Zewen², Zhao Kangpei¹, Ding Daicun¹, Wang Lei¹

1. School of Construction Machinery, Shandong Jiaotong University, Jinan Shandong 250357, China;
2. Baoding Technology R& D Branch of Great Wall Motor Co., Ltd., Baoding Hebei 071000, China

Received:2021-05-07 Online:2021-10-25 Published:2021-12-08

摘要/Abstract

摘要： 在540 ℃×2 h水淬固溶处理的基础上,研究了时效处理对新型Al-Mg-4.5Si-4.5Zn合金性能的影响。结果表明:合金的硬度随时效温度的升高和时效时间的延长先增加后减小,在190 ℃时效2 h达到最大值135.1 HBW;抗拉强度随时效时间的延长先增加后减小,在190 ℃时效3 h时达到最大值390.12 MPa。根据综合性能确定Al-Mg-4.5Si-4.5Zn合金的最佳时效工艺为190 ℃×3 h。

关键词: 时效处理, Al-Mg-4.5Si-4.5Zn合金, 硬度, 抗拉强度

Abstract: Effect of aging treatment after solid solution at 540 ℃ for 2 h and water quenching on the properties of Al-Mg-4.5Si-4.5Zn alloy was studied. The results show that with the increasing of aging temperature and aging time, the hardness of the alloy increases first and then decreases, and reaches the maximum value of 135.1 HBW when aging at 190 ℃ for 2 h.The tensile strength of the alloy increases first and then decreases with extending of aging time,and reaches the maximum value of 390.12 MPa when aging at 190 ℃ for 3 h. Based on the comprehensive properties, the optimal aging process for Al-Mg-4.5Si-4.5Zn alloy is aging at 190 ℃ for 3 h.

Key words: aging treatment, Al-Mg-4.5Si-4.5Zn alloy, hardness, tensile strength

中图分类号:

TG146.2

孙跃军, 仲丽, 崔泽文, 赵康培, 丁代存, 王雷. 时效处理对Al-Mg-4.5Si-4.5Zn合金性能的影响[J]. 金属热处理, 2021, 46(10): 117-121.

Sun Yuejun, Zhong Li, Cui Zewen, Zhao Kangpei, Ding Daicun, Wang Lei. Effect of aging treatment on properties of Al-Mg-4.5Si-4.5Zn alloy[J]. Heat Treatment of Metals, 2021, 46(10): 117-121.

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时效处理对Al-Mg-4.5Si-4.5Zn合金性能的影响

Effect of aging treatment on properties of Al-Mg-4.5Si-4.5Zn alloy

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