Effect of internal hydrogen on very high cycle fatigue of precipitation-strengthened steel SUH660

Hao Wu, Shigeru Hamada, Yasuji Oda, Hiroshi Noguchi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The fatigue life of SUH660 steel is dominated by crack initiation in the region of very high cycle fatigue owing to the new crack initiation behavior near the tip of temporarily arrested crack. The effect of internal hydrogen on very high cycle fatigue life is investigated focused on crack initiation life via fatigue and Vickers hardness tests. Hydrogen inhibits cracks initiation, and accelerates the increase in crack initiation lives with decreasing stress in low and medium hardness zones. Hydrogen increases the hardness in low and medium hardness zones. Hydrogen extends new crack initiation lives and causes longer very high cycle fatigue life.

Original languageEnglish
Pages (from-to)406-416
Number of pages11
JournalInternational Journal of Fatigue
Volume70
DOIs
Publication statusPublished - Jan 1 2015

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Fingerprint Dive into the research topics of 'Effect of internal hydrogen on very high cycle fatigue of precipitation-strengthened steel SUH660'. Together they form a unique fingerprint.

  • Cite this