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

8 Citations (Scopus)

Abstract

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
Pages739-742
Number of pages4
ISBN (Print)9783037850497
DOIs
Publication statusPublished - 2011 Jan 1

Publication series

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

Keywords

  • 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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  • Cite this

    Zhao, Y., Wu, A. P., Yao, W., Wang, Z. M., Sato, Y. S., & Kokawa, H. (2011). Microstructure and mechanical properties of Nd:YAG laser welded invar 36 alloy. In Advanced Material Science and Technology (pp. 739-742). (Materials Science Forum; Vol. 675 677). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/MSF.675-677.739