Effects of Micro-alloying Element La on Microstructures and Properties of Al-0.6Mg-0.6Si Alloy

Lu Ming; Ye Zhongfei; Zheng Qiuju; Jiang Hongxiang; Zhao Jiuzhou; He Jie; Zhang Lili

doi:10.15980/j.tzzz.2021.12.009

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Effects of Micro-alloying Element La on Microstructures and Properties of Al-0.6Mg-0.6Si Alloy
Vol. 41, Issue 12, Pages: 1494-1499(2021)
Published： 2021 ，
DOI： 10.15980/j.tzzz.2021.12.009

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Lu Ming, Ye Zhongfei, Zheng Qiuju, et al. Effects of Micro-alloying Element La on Microstructures and Properties of Al-0.6Mg-0.6Si Alloy. [J]. Special Casting & Nonferrous Alloys 41(12):1494-1499(2021)
DOI：

Lu Ming, Ye Zhongfei, Zheng Qiuju, et al. Effects of Micro-alloying Element La on Microstructures and Properties of Al-0.6Mg-0.6Si Alloy. [J]. Special Casting & Nonferrous Alloys 41(12):1494-1499(2021) DOI： 10.15980/j.tzzz.2021.12.009.

摘要

研究了微合金化元素La对Al-0.6Mg-0.6Si合金组织及性能的影响。结果表明

稀土元素La的添加能够同时提高合金的强度和电导率;微量La通过减小晶粒尺寸和促进(Mg

Si)相的析出来提高Al-0.6Mg-0.6Si合金的强度

通过降低Al基体中Mg和Si元素的含量来提高合金的导电性

为制备具有优良力学性能和导电性能的Al-0.6Mg-0.6Si合金提供参考。

Abstract

The effects of micro-alloying element La on the microstructures and properties of Al-Mg-Si alloy were investigated. The results indicate that the addition of trace rare earth element La can simultaneously improve the strength and conductivity of the alloy. Trace La improve the strength of Al-Mg-Si alloy by reducing the grain size and promoting the precipitation of（Mg

Si） phase

and improve the conductivity by reducing the content of Mg and Si in Al matrix. It presents a referrence for the preparation of Al-Mg-Si alloy with excellent mechanical and electrical properties.