Retained Austenite Reduction near Fracture Surface in Repeatedly Quenched SUJ2 Steel

Shusuke Kita, Yoshiki Takezawa, Koshiro Mizobe*, Katsuyuki Kida*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

High-carbon high-strength JIS-SUJ2 bearing steel is an alloy having the characteristics of high wear resistance and fatigue strength as a result of quenching. When this kind of high-strength material is exposed to long-lasting low stress application loadings, fisheye fractures can often be seen. In this research, we measured the retained austenite near the fracture surface in JIS-SUJ2. After the measurement, we confirmed the decrease of the retained austenite in the vertical surface under both fisheye fracture and ductile fracture.

Original languageEnglish
Title of host publicationSolid State Phenomena
PublisherTrans Tech Publications Ltd
Pages121-126
Number of pages6
DOIs
StatePublished - 2022

Publication series

NameSolid State Phenomena
Volume335
ISSN (Print)1012-0394
ISSN (Electronic)1662-9779

Keywords

  • SUJ2
  • fatigue
  • fisheye
  • prior austenite grain
  • repeated heating
  • repeated quenching
  • retained austenite

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • General Materials Science
  • Condensed Matter Physics

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