Role of retained austenite in low alloy steel at low temperature monitored by neutron diffraction

• Yamashita, Takayuki

• Morooka, Satoshi

• Harjo, Stefanus

• Kawasaki, Takuro

• Koga, Norimitsu

• Umezawa, Osamu

Abstract

In-situ neutron diffraction measurements during tensile tests at low temperatures of a low alloy steel containing retained austenite (γ) have been performed. Evolutions of phase fractions and phase stresses were analyzed and discussed with the progress of deformation. The role of γ in the steel during deformation at low temperatures was observed not to directly in the contribution to the strengths but in the improvement of the elongation by transformation of γ to martensite -and in the increasing of the work-hardening rate by an increase in the phase fraction of martensite and the work hardening of martensite.

Journal

• Scripta Materialia

  Scripta Materialia 177 6-10, 2020-03-01

  Elsevier

Keywords

• Martensitic transformation
• Low alloy steel
• Neutron diffraction
• Phase stress
• Phase fraction

Details

• CRID: 1050002212665392896
• NII Article ID: 120006781963
• NII Book ID: AA11067905
• ISSN: 13596462
• DOI: 10.1016/j.scriptamat.2019.10.002
• Web Site: http://hdl.handle.net/10131/00012875
• Web Site: https://api.elsevier.com/content/article/PII:S1359646219305755?httpAccept=text/xml
• Web Site: https://api.elsevier.com/content/article/PII:S1359646219305755?httpAccept=text/plain
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN