publication . Article . 2017

Effect of Low-Temperature Sensitization on Hydrogen Embrittlement of 301 Stainless Steel

Chieh Yu; Ren-Kae Shiue; Chun Chen; Leu-Wen Tsay;
Open Access English
  • Published: 01 Feb 2017 Journal: Metals (issn: 2075-4701, Copyright policy)
  • Publisher: MDPI AG
Abstract
The effect of metastable austenite on the hydrogen embrittlement (HE) of cold-rolled (30% reduction in thickness) 301 stainless steel (SS) was investigated. Cold-rolled (CR) specimens were hydrogen-charged in an autoclave at 300 or 450 °C under a pressure of 10 MPa for 160 h before tensile tests. Both ordinary and notched tensile tests were performed in air to measure the tensile properties of the non-charged and charged specimens. The results indicated that cold rolling caused the transformation of austenite into α′ and e-martensite in the 301 SS. Aging at 450 °C enhanced the precipitation of M23C6 carbides, G, and σ phases in the cold-rolled specimen. In addit...
Subjects
free text keywords: stainless steel, hydrogen embrittlement, hydrogen charging, G and σ phases, α′ martensite, Mining engineering. Metallurgy, TN1-997, Carbide, Metallurgy, Austenite, Autoclave, Martensite, Grain boundary, Ultimate tensile strength, Sensitization, medicine.anatomical_structure, medicine, Materials science
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publication . Article . 2017

Effect of Low-Temperature Sensitization on Hydrogen Embrittlement of 301 Stainless Steel

Chieh Yu; Ren-Kae Shiue; Chun Chen; Leu-Wen Tsay;