Hydrogen emission in fatigue process of hydrogen-charged austenitic stainless steels

Katsuya Hayashida, Hisao Matsunaga, Masahiro Endo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The acceleration of hydrogen diffusion in the fatigue process of AISI type 304 and 316L meta-stable austenitic stainless steels was studied by paying attention to the relation between fatigue slip bands and hydrogen emission. Slip bands were formed in tension-compression fatigue tests of round specimens in ambient air, and then the specimens were cathodically charged with hydrogen. The location of hydrogen emission was microscopically visualized by means of the hydrogen microprint technique (HMT). Hydrogen was mainly emitted from slip bands on the surface of fatigued specimens. The depth of hydrogen diffusion into the specimens was also observed on the fatigue fracture surfaces by the HMT. The depth for a specimen hydrogen-charged before fatigue testing was about 50 μm at a maximum, whereas the depth for a specimen that was hydrogen-charged after slip bands had been formed in a preliminary fatigue test was about 300 μm. Those results suggested that slip bands act as a pathway where hydrogen will move preferentially.

Original languageEnglish
Title of host publicationFourth International Conference on Experimental Mechanics
Volume7522
DOIs
Publication statusPublished - Dec 1 2010
Externally publishedYes
Event4th International Conference on Experimental Mechanics - Singapore, Singapore
Duration: Nov 18 2009Nov 20 2009

Other

Other4th International Conference on Experimental Mechanics
CountrySingapore
CitySingapore
Period11/18/0911/20/09

Fingerprint

Austenitic Stainless Steel
austenitic stainless steels
Austenitic stainless steel
Fatigue
Hydrogen
Fatigue of materials
hydrogen
edge dislocations
Slip
fatigue tests
Fatigue testing
Pathway
Compaction
Compression

All Science Journal Classification (ASJC) codes

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Hayashida, K., Matsunaga, H., & Endo, M. (2010). Hydrogen emission in fatigue process of hydrogen-charged austenitic stainless steels. In Fourth International Conference on Experimental Mechanics (Vol. 7522). [752205] https://doi.org/10.1117/12.852121

Hydrogen emission in fatigue process of hydrogen-charged austenitic stainless steels. / Hayashida, Katsuya; Matsunaga, Hisao; Endo, Masahiro.

Fourth International Conference on Experimental Mechanics. Vol. 7522 2010. 752205.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hayashida, K, Matsunaga, H & Endo, M 2010, Hydrogen emission in fatigue process of hydrogen-charged austenitic stainless steels. in Fourth International Conference on Experimental Mechanics. vol. 7522, 752205, 4th International Conference on Experimental Mechanics, Singapore, Singapore, 11/18/09. https://doi.org/10.1117/12.852121
Hayashida K, Matsunaga H, Endo M. Hydrogen emission in fatigue process of hydrogen-charged austenitic stainless steels. In Fourth International Conference on Experimental Mechanics. Vol. 7522. 2010. 752205 https://doi.org/10.1117/12.852121
Hayashida, Katsuya ; Matsunaga, Hisao ; Endo, Masahiro. / Hydrogen emission in fatigue process of hydrogen-charged austenitic stainless steels. Fourth International Conference on Experimental Mechanics. Vol. 7522 2010.
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