Effect of ultra-grain refinement on the tensile behaviour of an austenitic steel charged with hydrogen

Arnaud Macadre; Koichi Tsuboi; Nobuo Nakada; Toshihiro Tsuchiyama; Setsuo Takaki

Effect of ultra-grain refinement on the tensile behaviour of an austenitic steel charged with hydrogen

Arnaud Macadre, Koichi Tsuboi, Nobuo Nakada, Toshihiro Tsuchiyama, Setsuo Takaki

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The behavior of a metastable austenitic steel was investigated. The chemical composition allows a reversion treatment from martensite to produce different austenite grain sizes (1-65 μm). Cathodic charging was used to investigate the mechanical response of the steel to pre-charged hydrogen, and whether ultra-grain refinement is an effective means to curb hydrogen embrittlement. The ultra-fine grained material retained a ductile behavior despite the large strength increase, with some intergranular surface cracking while the larger grained material showed large areas of brittle cracking. TEM observation showed the effect of hydrogen charging on the dislocation behavior.

Original language	English
Title of host publication	Materials Science and Technology Conference and Exhibition 2013, MS and T 2013
Pages	2361-2368
Number of pages	8
Publication status	Published - 2014
Event	Materials Science and Technology Conference and Exhibition 2013, MS and T 2013 - Montreal, QC, Canada Duration: Oct 27 2013 → Oct 31 2013

Publication series

Name	Materials Science and Technology Conference and Exhibition 2013, MS and T 2013
Volume	4

Other

Other	Materials Science and Technology Conference and Exhibition 2013, MS and T 2013
Country/Territory	Canada
City	Montreal, QC
Period	10/27/13 → 10/31/13

All Science Journal Classification (ASJC) codes

Mechanics of Materials

Cite this

Effect of ultra-grain refinement on the tensile behaviour of an austenitic steel charged with hydrogen. / Macadre, Arnaud; Tsuboi, Koichi; Nakada, Nobuo et al.
Materials Science and Technology Conference and Exhibition 2013, MS and T 2013. 2014. p. 2361-2368 (Materials Science and Technology Conference and Exhibition 2013, MS and T 2013; Vol. 4).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Macadre, A, Tsuboi, K, Nakada, N, Tsuchiyama, T & Takaki, S 2014, Effect of ultra-grain refinement on the tensile behaviour of an austenitic steel charged with hydrogen. in Materials Science and Technology Conference and Exhibition 2013, MS and T 2013. Materials Science and Technology Conference and Exhibition 2013, MS and T 2013, vol. 4, pp. 2361-2368, Materials Science and Technology Conference and Exhibition 2013, MS and T 2013, Montreal, QC, Canada, 10/27/13.

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year = "2014",

language = "English",

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AU - Macadre, Arnaud

AU - Tsuboi, Koichi

AU - Nakada, Nobuo

AU - Tsuchiyama, Toshihiro

AU - Takaki, Setsuo

PY - 2014

Y1 - 2014

N2 - The behavior of a metastable austenitic steel was investigated. The chemical composition allows a reversion treatment from martensite to produce different austenite grain sizes (1-65 μm). Cathodic charging was used to investigate the mechanical response of the steel to pre-charged hydrogen, and whether ultra-grain refinement is an effective means to curb hydrogen embrittlement. The ultra-fine grained material retained a ductile behavior despite the large strength increase, with some intergranular surface cracking while the larger grained material showed large areas of brittle cracking. TEM observation showed the effect of hydrogen charging on the dislocation behavior.

AB - The behavior of a metastable austenitic steel was investigated. The chemical composition allows a reversion treatment from martensite to produce different austenite grain sizes (1-65 μm). Cathodic charging was used to investigate the mechanical response of the steel to pre-charged hydrogen, and whether ultra-grain refinement is an effective means to curb hydrogen embrittlement. The ultra-fine grained material retained a ductile behavior despite the large strength increase, with some intergranular surface cracking while the larger grained material showed large areas of brittle cracking. TEM observation showed the effect of hydrogen charging on the dislocation behavior.

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T3 - Materials Science and Technology Conference and Exhibition 2013, MS and T 2013

SP - 2361

EP - 2368

BT - Materials Science and Technology Conference and Exhibition 2013, MS and T 2013

T2 - Materials Science and Technology Conference and Exhibition 2013, MS and T 2013

Y2 - 27 October 2013 through 31 October 2013

ER -

Effect of ultra-grain refinement on the tensile behaviour of an austenitic steel charged with hydrogen

Abstract

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