Microstructure evolution during laser pressure welding of pure aluminum

Jingquan Zhang, Ting Huang, Sergey Mironov, Qiang Wu, Qingwei Zhang, Jiejie Xu, Rongshi Xiao

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The present work was undertaken to provide an in-depth insight into a relatively new joining technique, the so-called laser pressure welding. To this end, the fundamental aspects of microstructural evolution occurring during welding of pure aluminum were studied. The microstructural changes were found to be relatively complex involving static recrystallization, melting, solidification and plastic deformation. The solidified grains were deduced to nucleate epitaxially on the recrystallized grains thus inheriting their crystallographic orientations. From thorough microstructural analysis, it was deduced that the solidification process initiated before rolling and thus the freshly crystallized material experienced a plastic strain.

Original languageEnglish
Article number126931
JournalMaterials Letters
Volume260
DOIs
Publication statusPublished - 2020 Feb 1
Externally publishedYes

Keywords

  • Aluminum
  • Laser pressure welding
  • Microstructure
  • Texture

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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