Effects of Microalloying on Thermal Conductivity and Mechanical Properties of Mg Alloys

Tang Yongqing; Wang Chunming; Chen Song

doi:10.15980/j.tzzz.2018.06.003

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Effects of Microalloying on Thermal Conductivity and Mechanical Properties of Mg Alloys
Vol. 38, Issue 6, Pages: 589-591(2018)
Published： 2018 ，
DOI： 10.15980/j.tzzz.2018.06.003

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[1]唐涌清,王春明,陈松.微合金化对镁合金的导热和力学性能的影响[J].特种铸造及有色合金,2018,38(06):589-591.

Tang Yongqing, Wang Chunming, Chen Song. Effects of Microalloying on Thermal Conductivity and Mechanical Properties of Mg Alloys. [J]. Special Casting & Nonferrous Alloys 38(6):589-591(2018)
[1]唐涌清,王春明,陈松.微合金化对镁合金的导热和力学性能的影响[J].特种铸造及有色合金,2018,38(06):589-591. DOI： 10.15980/j.tzzz.2018.06.003.

Tang Yongqing, Wang Chunming, Chen Song. Effects of Microalloying on Thermal Conductivity and Mechanical Properties of Mg Alloys. [J]. Special Casting & Nonferrous Alloys 38(6):589-591(2018) DOI： 10.15980/j.tzzz.2018.06.003.

摘要

研究了微量合金元素添加对铸态镁合金显微结构、导热及力学性能的影响。结果表明

Zn、Sn元素主要以固溶的形式存在镁基体中

起到固溶强化作用;同时

Zr、Ca、La、Ce元素主要在晶界处富集

生成少量的第二相

起到细化晶粒的作用。因此

微量合金元素可以明显提高镁合金的强度和塑性

而对合金的电导率和热导率的影响较小。

Abstract

Effects of microalloying on thermal conductivity and mechanical properties of Mg alloys were investigated.The results show that the Zn

Sn elements exist mainly in Mg matrix in form of solid solution

which plays a role of solution strengthening.Meanwhile

the Zr

Ce elements are enriched in the grain boundary

and the small number of second phases formed can refine the grain size.The trace alloy element addition can improve obviously the strength and elongation of Mg alloys.Meanwhile

they have the slight effects on electrical and thermal conductivity of Mg alloys.