Fatigue properties of steel modified by combination of carburizing and WPC process

Daisuke Yonekura, Jun Komotori, Masao Shimizu, Hiromi Shimizu

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Rotational bending fatigue tests were carried out on SCM 420 H steel modified by a combination of Wide Peening Cleaning (WPC) and carburizing, with special attention focused on the effect of surface residual stress on fatigue properties. By combining the carburizing and the WPC process, it is possible to generate a high compressive residual stress near the surface, while keeping a deep layer of compressive residual stress associated with the carburizing. The notched specimens modified by the combined process show significantly higher fatigue strength compared to those modified by single process of carburizing. This is because the extremely high compressive residual stress remained after stress cycling at the surface of the specimens modified by the combined process.

Original languageEnglish
Pages (from-to)509-514
Number of pages6
JournalNippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume68
Issue number3
Publication statusPublished - 2002 Mar 1
Externally publishedYes

Keywords

  • Combined process
  • Fatigue strength improvement
  • Fracture mechanism
  • High cycle fatigue
  • Residual stress
  • WPC treatment

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Fatigue properties of steel modified by combination of carburizing and WPC process'. Together they form a unique fingerprint.

  • Cite this