TY - JOUR
T1 - The effect of electrical hydrogen charging on the strength of 316 stainless steel
AU - Sugiyama, S.
AU - Ohkubo, H.
AU - Takenaka, M.
AU - Ohsawa, K.
AU - Ansari, M. I.
AU - Tsukuda, N.
AU - Kuramoto, E.
N1 - Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2000
Y1 - 2000
N2 - The effect of electrical hydrogen charging on the strength of 316 stainless steel specimens has been investigated in tensile tests at 223 K, and the increase of yield stress and the decrease of total elongation were observed. These tendencies increase with increasing hydrogen content of the specimens. This is considered to be due to hydogen-induced phase transformation from γ (fee) to ε (bcc), α (bcc), which was confirmed by X-ray diffraction method. Hydrogen concentration was determined by elastic recoil detection (ERD) method, the maximum of which reached 40% near the surface region. Positron annihilation lifetime was also measured after electrical hydrogen charging and a longer lifetime of about 300 ps was observed, which suggests the formation of microvoids in the specimens.
AB - The effect of electrical hydrogen charging on the strength of 316 stainless steel specimens has been investigated in tensile tests at 223 K, and the increase of yield stress and the decrease of total elongation were observed. These tendencies increase with increasing hydrogen content of the specimens. This is considered to be due to hydogen-induced phase transformation from γ (fee) to ε (bcc), α (bcc), which was confirmed by X-ray diffraction method. Hydrogen concentration was determined by elastic recoil detection (ERD) method, the maximum of which reached 40% near the surface region. Positron annihilation lifetime was also measured after electrical hydrogen charging and a longer lifetime of about 300 ps was observed, which suggests the formation of microvoids in the specimens.
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U2 - 10.1016/S0022-3115(00)00346-9
DO - 10.1016/S0022-3115(00)00346-9
M3 - Article
AN - SCOPUS:4644287423
VL - 283-287
SP - 863
EP - 867
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
SN - 0022-3115
IS - PART II
ER -