Cd和Nd对ZK60镁合金组织和性能的影响

李金柱; 黎小辉; 周楠; 戚文军; 赵明纯

doi:10.15980/j.tzzz.2013.11.013

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Cd和Nd对ZK60镁合金组织和性能的影响
Effects of Cd and Nd Addition on Microstructure and Mechanical Properties of As-Cast ZK60 Magnesium Alloy
2013年33卷第11期页码：1071-1074
纸质出版日期： 2013 ，
DOI： 10.15980/j.tzzz.2013.11.013

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[1]李金柱,黎小辉,周楠,戚文军,赵明纯.Cd和Nd对ZK60镁合金组织和性能的影响[J].特种铸造及有色合金,2013,33(11):1071-1074.

Li Jinzhu, Li Xiaohui, Zhou Nan, et al. Effects of Cd and Nd Addition on Microstructure and Mechanical Properties of As-Cast ZK60 Magnesium Alloy[J]. Special Casting & Nonferrous Alloys, 2013,33(11):1071-1074.
[1]李金柱,黎小辉,周楠,戚文军,赵明纯.Cd和Nd对ZK60镁合金组织和性能的影响[J].特种铸造及有色合金,2013,33(11):1071-1074. DOI： 10.15980/j.tzzz.2013.11.013.

Li Jinzhu, Li Xiaohui, Zhou Nan, et al. Effects of Cd and Nd Addition on Microstructure and Mechanical Properties of As-Cast ZK60 Magnesium Alloy[J]. Special Casting & Nonferrous Alloys, 2013,33(11):1071-1074. DOI： 10.15980/j.tzzz.2013.11.013.

摘要

利用ICP测试仪、光学显微镜、扫描电镜、万能拉伸试验机和电化学工作站等

研究了不同添加量的Cd和Nd对ZK60镁合金显微组织、室温力学性能和电化学特性的影响。结果表明

在合金中通过加入适量的Cd可明显提高材料的韧度和抗拉强度

而Mg-Zn-Nd-Zr合金晶界处存在的连续网状第二相降低了其强度和伸长率。Nd的加入可显著提高合金的腐蚀电位。在合金中添加适量的Cd和Nd

不仅可改善其力学性能

同时也可增强合金的耐蚀性能。

Abstract

Effects of Cd and Nd addition on microstructures

mechanical properties and electrochemical behavior of ZK60alloys were investigated by ICP tester

OM（optical microscope）

SEM（scanning electron microscope）and universal tensile testing as well as electro-chemical working station.The results show that ductility and tensile strength of the alloy with Cd addition can be improved greatly

however

the continuous net-like intergranular phases in Mg-Zn-Nd-Zr alloy obviously deteriorate the mechanical properties（strength and elongation）.In addition

corrosion potential is significantly improved in the Mg-Zn-Zr alloy with Nd addition.The alloy with proper Cd and Nd compound additions can not only improve mechanical properties

but also enhance corrosion resistance.