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Metallic Glass For Joining Application

  • : Liap Tat Su1, Teck Ming Tan1, Lance Wei Seong Lim1, Xi Jiang Yin1, Shao Soon Chong2
  • : 1Singapore Polytechnic, 2Singapore Technologies Kinetics Ltd
  • : PDF Download
  • : 2017

Abstract

Metallic glass has attracted technological interest due to its novel properties in high hardness, strength and chemical resistance. Using a gas atomization process which enables rapid solidification of molten alloys, metallic glass powders with near spherical shape and amorphous structure were produced. Here, we reported metallic glass as a novel material for joining application. Cold spray process is a variant process of welding, and was used to perform welding of metallic glass on stainless steel. The joining interface by cold spray is amorphous in structure, and is corrosion resistant as shown in a salt-fog test. The strength of the cold sprayed metallic glass increases at extreme low temperature. Additionally, a tungsten inert gas arc welding was carried out to study the weldability of metallic glass. Using a non-destructive x-ray scan method to inspect the weld, metallic glass has shown the potential as a filler material for arc welding.

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