TY - GEN
T1 - Effect of ultra-grain refinement on the tensile behaviour of an austenitic steel charged with hydrogen
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.
KW - Austenitic steel
KW - Grain refinement
KW - Hydrogen embrittlement
UR - https://www.scopus.com/pages/publications/84893469137
UR - https://www.scopus.com/pages/publications/84893469137#tab=citedBy
M3 - Conference contribution
AN - SCOPUS:84893469137
SN - 9781629933092
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 -