Microstructure and mechanical properties of Nd:YAG laser welded invar 36 alloy

Yue Zhao, Ai Ping Wu, Wei Yao, Zhi Min Wang, Yutaka S. Sato, Hiroyuki Kokawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Citations (Scopus)


Invar 36 alloy is increasingly used as a structural material for manufacture of liquefied natural gas (LNG) transporters and storage tanks. However, the conventional arc welding of Invar 36 alloy has high susceptibility of hot-cracking. As a high-energy-beam welding process, laser welding could be effective for producing defect-free Invar 36 weld. In the present study, defect-free Invar 36 weld was successfully produced by Nd:YAG laser welding. The microstructure and mechanical properties of weld were also tested.

Original languageEnglish
Title of host publicationAdvanced Material Science and Technology
PublisherTrans Tech Publications Ltd
Number of pages4
ISBN (Print)9783037850497
Publication statusPublished - 2011

Publication series

NameMaterials Science Forum
Volume675 677
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752


  • Invar 36 alloy
  • Laser welding
  • Mechanical property
  • Microstructure
  • Precipitate

ASJC Scopus subject areas

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


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