Mg/Al合金爆炸焊连接及其界面接合机制

doi:10.3901/JME.2016.12.052

机械工程学报 ›› 2016, Vol. 52 ›› Issue (12): 52-58.doi: 10.3901/JME.2016.12.052

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Mg/Al合金爆炸焊连接及其界面接合机制

张婷婷^{1, 2}, 王文先^{1, 2}, 袁晓丹^{1, 2}, 刘瑞峰^{1, 2}, 谢瑞山^{1, 2}

1. 太原理工大学材料科学与工程学院太原 030024;
2. 太原理工大学先进镁基材料山西省重点实验室太原 030024

出版日期:2016-06-15 发布日期:2016-06-15
作者简介:张婷婷,女,1988年出生,博士研究生。主要研究方向为铝/镁合金爆炸复合焊接界面行为。E-mail：tyztt88@163.com;王文先(通信作者),男,1963年出生,教授,博士研究生导师。主要研究方向为先进材料连接及其界面行为。E-mail：wwx960@126.com
基金资助:
国家自然科学基金资助项目(51375328)

Interface Bonding Mechanism of Mg/Al Alloy Explosive Welded

ZHANG Tingting^{1, 2}, WANG Wenxian^{1, 2}, YUAN Xiaodan^{1, 2}, LIU Ruifeng^{1, 2}, XIE Ruishan^{1, 2}

1. College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024;
2. Shanxi Key Laboratory of Advanced Magnesium-based Materials, Taiyuan University of Technology, Taiyuan 030024

Online:2016-06-15 Published:2016-06-15

摘要/Abstract

摘要： 采用爆炸焊接技术制备以AZ31B镁合金为基板,以6061铝合金为覆板的AZ31B/6061合金的层状复合板。对复合板界面的宏观形貌、微观组织、界面元素扩散行为及界面接合性能进行测试、分析。结果表明：AZ31B/6061合金爆炸复合板接合界面呈波状接合;靠近接合界面处的塑性变形程度最大,以孪晶和再结晶形式为主;在AZ31B一侧靠近界面处出现与界面呈45°的绝热剪切带组织,带内为动态再结晶形成的细晶粒组织;接合界面两侧的显微硬度分布为：随着距离接合界面的增大,AZ31B和6061侧的显微硬度值递减趋势;复合板的拉-剪试验结果表明,界面接合强度达193.3 MPa;复合板界面接合机制为压力焊、扩散焊及局部熔化焊综合作用的结果。

关键词: Mg/Al合金, 爆炸焊接, 界面接合机制

Abstract: The AZ31B/6061 alloy composite plate is fabricated by explosive welding, as the base plate of AZ31B magnesium alloy material and the flyer plate of 6061 aluminum alloy material. The macro/micro-structure, elements diffusion and bonding strength of the composite bonding interface. The results show that the bonding interface presents a periodical wave; near the bonding interface the plastic deformation is serious and microstructure in the form of twin and recrystallization mainly; adiabatic shear bands are found on the AZ31B Mg alloy side adjacent to the interface by the direction of 45° and the microstructure is fine grain microstructure by recrystallization; the micro-hardness distribution characteristics is decrease with the increase of distance from the bonding interface both of AZ31B and 6061 plate; the interface bonding strength is 193.3 MPa and the bonding mechanism of pressure welding, diffusion welding and local melting welding.

Key words: explosive welding, interface bonding mechanism, Mg/Al alloy

中图分类号:

TG392

张婷婷, 王文先, 袁晓丹, 刘瑞峰, 谢瑞山. Mg/Al合金爆炸焊连接及其界面接合机制[J]. 机械工程学报, 2016, 52(12): 52-58.

ZHANG Tingting, WANG Wenxian, YUAN Xiaodan, LIU Ruifeng, XIE Ruishan. Interface Bonding Mechanism of Mg/Al Alloy Explosive Welded[J]. Journal of Mechanical Engineering, 2016, 52(12): 52-58.

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Mg/Al合金爆炸焊连接及其界面接合机制

Interface Bonding Mechanism of Mg/Al Alloy Explosive Welded

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