Studies of evaluation of hydrogen embrittlement property of high-strength steels with consideration of the effect of atmospheric corrosion

Eiji Akiyama, Maoqiu Wang, Songjie Li, Zuogui Zhang, Yuuji Kimura, Nobuyoshi Uno, Kaneaki Tsuzaki

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Hydrogen embrittlement of high-strength steels was investigated by using slow strain rate test (SSRT) of circumferentially notched round bar specimens after hydrogen precharging. On top of that, cyclic corrosion tests (CCT) and outdoor exposure tests were conducted prior to SSRT to take into account the effect of hydrogen uptake under atmospheric corrosion for the evaluation of the susceptibility of high-strength steels. Our studies of hydrogen embrittle properties of high-strength steels with 1100 to 1500 MPa of tensile strength and a prototype ultrahigh-strength steel with 1760 MPa containing hydrogen traps using those methods are reviewed in this article. A power law relationship between notch tensile strength of hydrogen-precharged specimens and diffusible hydrogen content has been found. It has also been found that the local stress and the local hydrogen concentration are controlling factors of fracture. The results obtained by using SSRT after CCT and outdoor exposure test were in good agreement with the hydrogen embrittlement fracture property obtained by means of long-term exposure tests of bolts made of the high-strength steels.

Original languageEnglish
Pages (from-to)1290-1300
Number of pages11
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume44
Issue number3
DOIs
Publication statusPublished - Mar 1 2013

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hydrogen embrittlement
Atmospheric corrosion
Hydrogen embrittlement
high strength steels
High strength steel
Hydrogen
corrosion
evaluation
hydrogen
strain rate
Strain rate
corrosion tests
tensile strength
Tensile strength
Corrosion
bolts
Steel
notches
Bolts
prototypes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

Cite this

Studies of evaluation of hydrogen embrittlement property of high-strength steels with consideration of the effect of atmospheric corrosion. / Akiyama, Eiji; Wang, Maoqiu; Li, Songjie; Zhang, Zuogui; Kimura, Yuuji; Uno, Nobuyoshi; Tsuzaki, Kaneaki.

In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 44, No. 3, 01.03.2013, p. 1290-1300.

Research output: Contribution to journalArticle

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