Effect of heat treatment on hydrogen-assisted fracture behavior of PH13-8Mo steel

Xinfeng Li, Jin Zhang, Eiji Akiyama, Qizhen Li, Yanfei Wang

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Effect of heat treatment on hydrogen-assisted fracture behavior of PH13-8Mo steel was investigated. The results show that hydrogen embrittlement susceptibility of the specimens aged at 600 °C is the lowest compared with that of the specimens aged at 430 °C and 540 °C at the same aging time. With an increase in aging time, the susceptibility to hydrogen embrittlement increases for specimens aged at 430 °C while it decreases for specimens aged at 540 °C and 600 °C. Hydrogen-assisted cracks initiate and propagate along lath and prior austenite grain boundaries. In addition, the quantitative relationship between hydrogen embrittlement index and fracture mode is given.

Original languageEnglish
Pages (from-to)198-212
Number of pages15
JournalCorrosion Science
Volume128
DOIs
Publication statusPublished - 2017 Nov

Keywords

  • A. Steel
  • B. SEM
  • C. Hydrogen embrittlement

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)

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