TY - JOUR
T1 - Effects of hydrogen and weld defect on tensile properties of SUH660 and SUS316L welded joints
AU - Kubota, Masanobu
AU - Komoda, Ryosuke
AU - Cui, Xuesong
AU - Wakabayashi, Hiroshi
AU - Tanaka, Yasuhisa
PY - 2019/9/1
Y1 - 2019/9/1
N2 - The effect of hydrogen on the tensile properties of the SUH660 and SUS316L different materials welded joints was characterized in conjunction with the joint shape and weld defects. The butt welded joint specimen without weld defect fractured at the SUS316L base material, and did not cause hydrogen embrittlement (HE). However, the failure position of the spigot-lap welded joint specimen moved from the SUS316L base material to the weld part when hydrogen charging was applied. This resulted in a significant reduction of the elongation. It was presumed that the HE was induced by the stress concentration due to the weld shape. The weld defect induced HE in both joints. The weld defect was produced by incomplete penetration. It also caused incomplete mixing of the weld metal. Consequently, filler nickel segregated around the weld defect, then HE occurred.
AB - The effect of hydrogen on the tensile properties of the SUH660 and SUS316L different materials welded joints was characterized in conjunction with the joint shape and weld defects. The butt welded joint specimen without weld defect fractured at the SUS316L base material, and did not cause hydrogen embrittlement (HE). However, the failure position of the spigot-lap welded joint specimen moved from the SUS316L base material to the weld part when hydrogen charging was applied. This resulted in a significant reduction of the elongation. It was presumed that the HE was induced by the stress concentration due to the weld shape. The weld defect induced HE in both joints. The weld defect was produced by incomplete penetration. It also caused incomplete mixing of the weld metal. Consequently, filler nickel segregated around the weld defect, then HE occurred.
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U2 - 10.18178/ijmerr.8.5.713-718
DO - 10.18178/ijmerr.8.5.713-718
M3 - Article
AN - SCOPUS:85071753457
VL - 8
SP - 713
EP - 718
JO - International Journal of Mechanical Engineering and Robotics Research
JF - International Journal of Mechanical Engineering and Robotics Research
SN - 2278-0149
IS - 5
ER -