Friction Stir Welding of Zr₅₅Al₁₀Ni₅Cu₃₀ Bulk Metallic Glass to Crystalline Aluminum

Zuoxiang Qin 1) , Cuihong Li 1) , Haifeng Zhang 1)? , Zhongguang Wang 1) , Zhuangqi Hu 1) and Zhiqiang Liu 2) 1) Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academic of Sciences, Shenyang 110016, China 2) School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China

摘 要：The Zr55Al10Ni5Cu30 bulk metallic glass plate were successfully welded to crystalline aluminum plates by using a friction stir welding (FSW) method. The welded zone was examined. No defects, cracks or pores were observed and no other crystalline phases except for aluminum were found in the welded joint. The strength of the joint is higher than that of aluminum. The glassy phase in the stir zone keeps the amorphous state, showing a successful welding. The storage modulus softens over the glass transition. And the weldability was discussed according to this phenomena.

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