Effect of Zinc Addition on the Microstructure and Properties of Al–Si–Cu–Mg Cast Alloy

IF 1.6 4区材料科学 Q2 Materials Science

Transactions of The Indian Institute of Metals Pub Date : 2024-07-02 DOI:10.1007/s12666-024-03389-7

Jiale Zheng, Wenru Hu, Jinlong Kong, Xiaodong Du

引用次数: 0

Abstract

The addition of zinc (Zn) to a hypoeutectic Al–Si–Cu–Mg alloy leads to an improvement in grain size. It also causes a transformation of the needle-like structure of the β-Fe phase into a Chinese character-like or short rod-like α-Fe phase. Concurrently, the addition of Zn also improves the solidification temperature range of the alloy and enhances the fluidity of the alloy. The alloy exhibits the most optimal microstructure and the narrowest solidification temperature range when 0.3 wt% of Zn is added. The results demonstrate that the alloy's fluidity is enhanced by 91.55% compared to the traditional unmodified Al–8Si–1Cu–0.35 Mg casting alloy. Furthermore, the addition of 0.3 wt% Zn resulted in a maximum value of 281.5 MPa for the mass index Q, indicating the optimal tensile properties.

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加锌对铝硅铜镁铸造合金微观结构和性能的影响

在低共晶铝-硅-铜-镁合金中添加锌（Zn）可改善晶粒尺寸。锌还能使β-铁相的针状结构转变为汉字状或短棒状的α-铁相。同时，锌的加入还改善了合金的凝固温度范围，并提高了合金的流动性。当添加 0.3 wt% 的 Zn 时，合金显示出最理想的微观结构和最窄的凝固温度范围。结果表明，与传统的未改性 Al-8Si-1Cu-0.35 Mg 铸造合金相比，合金的流动性提高了 91.55%。此外，添加 0.3 wt% Zn 后，质量指数 Q 的最大值为 281.5 MPa，显示出最佳的拉伸性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Transactions of The Indian Institute of Metals Materials Science-Metals and Alloys

CiteScore

2.60

自引率

6.20%

发文量

期刊介绍： Transactions of the Indian Institute of Metals publishes original research articles and reviews on ferrous and non-ferrous process metallurgy, structural and functional materials development, physical, chemical and mechanical metallurgy, welding science and technology, metal forming, particulate technologies, surface engineering, characterization of materials, thermodynamics and kinetics, materials modelling and other allied branches of Metallurgy and Materials Engineering. Transactions of the Indian Institute of Metals also serves as a forum for rapid publication of recent advances in all the branches of Metallurgy and Materials Engineering. The technical content of the journal is scrutinized by the Editorial Board composed of experts from various disciplines of Metallurgy and Materials Engineering. Editorial Advisory Board provides valuable advice on technical matters related to the publication of Transactions.