Microstructures in the joint of zirconium-based bulk metallic glass and copper

Xiaoquan Yu, Jiankang Huang, Ling Shao, Yuming Zhang, Ding Fan, Yutao Kang, Fuqian Yang

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Using the pulse laser beam welding-brazing technique, we form a joint between Zr44Ti11Ni10Cu10Be25 (at%) bulk metallic glass (BMG) and copper. Scanning electron microscopy with energy dispersive spectroscopy and x-ray diffraction are used to characterize the microstructures and chemical composition of the joint. There are fusion zone (FZ) and heat-affected zone (HAZ) formed across the joint. The XRD pattern of the FZ exhibits a broad diffraction halo, and no peaks of crystalline phases are present. There is a diffusion layer formed between the FZ and copper, suggesting the migration of copper towards the FZ across the FZ/Cu interface during the welding. The Vickers hardness of the joint is slightly larger than that of the BMG. The C-curve and thermal cycle curves associated with the welding are used to discuss the mechanism controlling the evolution of the structures in the FZ and HAZ.

Original languageEnglish
Article number026511
JournalMaterials Research Express
Volume6
Issue number2
DOIs
StatePublished - Feb 2019

Bibliographical note

Funding Information:
This study was financially supported by the National Natural Science Foundation of China (No. 51465031 and No. 51865029).

Publisher Copyright:
© 2018 IOP Publishing Ltd.

Keywords

  • bulk metallic glass
  • copper
  • pulse laser beam welding
  • welding-brazing joint

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Metals and Alloys

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