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Indexed by:Journal Papers

Date of Publication:2019-09-01

Journal:JOURNAL OF MANUFACTURING PROCESSES

Included Journals:EI、SCIE

Volume:45

Page Number:115-122

ISSN No.:1526-6125

Key Words:Zr-based bulk metallic glass; Composite material; Underwater explosive welding; Weldability window; Interface microstructure

Abstract:The Zr60Ti17Cu12Ni11 bulk metallic glass (Zr-based BMG) and Aluminum 1060 plates were welded by the underwater explosive welding technique using varied-thickness ammonium fuel oil (ANFO) explosive. The interfacial microstructure characterization and the element composition of the obtained composites were characterized using optical microscopy (OM), scanning electron microscopy (SEM) with element analysis, highresolution transmission electron microscopy (HRTEM) and micro-hardness tester. The weldability window was calculated to verify the weldability of Zr-based BMG/Al, and the effects of varied-thickness explosive on the welded interface were discussed based on the kinetic energy loss theory. The results indicated that the underwater explosive welding technique is an effective way to produce Zr-based BMG/Al composites. The Zr-based BMG and Al plates were successfully welded without visible defects and formed about 7 mu m thick transition layer. The hardness of Zr-based BMG and Al increases near the joining interface. The obtained experimental results are in consistent with the theoretical calculation results.