Effect of Zn interlayer thickness on the microstructure and mechanical properties of two-step diffusion bonded joint of ZK60Mg and 5083Al

被引：39

作者：

Guo, Yangyang ^{[1
]}

Quan, Gaofeng ^{[1
]}

Ren, Lingbao ^{[1
]}

Liu, Baoshuan ^{[1
]}

Al-Ezzi, Salih ^{[1
]}

Pan, Houhong ^{[1
]}

机构：

[1] Southwest Jiaotong Univ, Key Lab Adv Technol Mat, Minist Educ, Chengdu, Sichuan, Peoples R China

来源：

VACUUM | 2019年 / 161卷

关键词：

Zn interlayer; Two step diffusion bonding; ZK60 Mg alloy; 5083 Al alloy; IMCs; AL; ALUMINUM; MAGNESIUM; INTERFACE; STRENGTH; ALLOY; CORROSION;

D O I：

10.1016/j.vacuum.2018.12.036

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Three different thicknesses of pure Zn interlayers were used in the two-step diffusion bonding between ZK60 magnesium (Mg) alloy and 5083 aluminum (Al) alloy. The effect of Zn interlayer thickness on the microstructure and the mechanical properties of the joints were investigated. The results showed that with the thickness of Zn interlayer increased, the width of the diffusion layers increased and the phase formed in the diffusion layer changed from Mg-Al-Zn ternary compounds to Mg-Zn binary compounds and Al-Zn solid solution. The micro hardness of the Mg/Zn/Al joints was lower than that of the Mg/Al joint and the shear strength of the joint was improved by Zn interlayer addition. The maximum shear strength of 38.65 MPa was obtained from the Mg/Zn-50/ Al joint in which the laminar structure of MgZn2 layer resisted the rapid propagation of cracks.

引用

页码：353 / 360

页数：8

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