Cu/Sn添加量对Al-Mg-Si合金析出及性能的影响

IF 1.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Technology Pub Date : 2023-06-18 DOI:10.1080/02670836.2023.2224994

Y. Weng, Qichen Sun, L. Ding, Jiahao Chen, Xiangxiang Cheng, Z. Jia, Manping Liu, Hua Zhao

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引用次数: 0

摘要

通过性能测试和微观表征，系统研究了Cu和Sn添加对Al-Mg-Si合金析出硬化的影响。Sn的加入可以延缓自然时效(NA)的发生，而长期NA后，NA硬化增强。虽然Cu和Sn可以促进NA的硬化，但Cu和Sn的组合添加导致NA硬度低于单独添加Cu。与Sn相比，Cu的加入能更有效地促进合金的人工时效硬化。Sn和Cu原子都可以结合在β”相内部，产生无序结构。研究结果有望为设计汽车用新型铝合金提供新的思路。

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Effect of Cu/Sn additions on the precipitation and property in Al-Mg-Si alloys

The effects of Cu and Sn additions on the precipitation hardening of Al-Mg-Si alloys were systematically studied by performance testing and microscopic characterisation. Sn addition can retard the onset of natural aging (NA), while after long-term NA, the NA hardening is enhanced. Although Cu and Sn can promote the NA hardening, the Cu and Sn combination addition results in NA hardness lower than the individual Cu addition. Compared with Sn, Cu addition is more efficient in promoting the artificial aging hardening of these alloys. Both of the Sn and Cu atoms can incorporate in the interior of the β′′ phase and produce disordered structure. The results are expected to provide new insight for designing new aluminium alloys for automotive application.

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来源期刊

Materials Science and Technology 工程技术-材料科学：综合

CiteScore

2.70

自引率

5.60%

发文量

审稿时长

3 months

期刊介绍：《Materials Science and Technology》（MST） is an international forum for the publication of refereed contributions covering fundamental and technological aspects of materials science and engineering.