TY - GEN
T1 - A Study on Using Hot-Rolled Steel Sheet for Ship Superstructure
AU - Narimatsu, Hisao
AU - Kuwada, Masakazu
AU - Gotoh, Koji
N1 - Publisher Copyright:
© 2021, Springer Nature Singapore Pte Ltd.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2021
Y1 - 2021
N2 - Application of the hot-rolled steel sheet for the members of superstructure, where the strength requirement of these parts in ships is not severe, is expected as a solution to reduce the hull construction cost. Because the hot-rolled steel sheet is applied after recoiling by cold working to return it to a flat plate, the material properties is deteriorated due to excessive plastic working and the residual stress induced by the plastic work might affect for the thermal cutting and welding. There is a possibility that the hot-rolled steel sheet has poor properties comparing with the flat rolled steels applied for hull parts where the structural integrities are required by the classification societies’ rules. The difference of properties between the hot-rolled steel sheet and the flat rolled steel are investigated in this research. Investigated items are mechanical properties, microstructures, initial residual stress distributions, hardness distributions, distortion after thermal cutting and laser-arc hybrid welding.
AB - Application of the hot-rolled steel sheet for the members of superstructure, where the strength requirement of these parts in ships is not severe, is expected as a solution to reduce the hull construction cost. Because the hot-rolled steel sheet is applied after recoiling by cold working to return it to a flat plate, the material properties is deteriorated due to excessive plastic working and the residual stress induced by the plastic work might affect for the thermal cutting and welding. There is a possibility that the hot-rolled steel sheet has poor properties comparing with the flat rolled steels applied for hull parts where the structural integrities are required by the classification societies’ rules. The difference of properties between the hot-rolled steel sheet and the flat rolled steel are investigated in this research. Investigated items are mechanical properties, microstructures, initial residual stress distributions, hardness distributions, distortion after thermal cutting and laser-arc hybrid welding.
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U2 - 10.1007/978-981-15-4680-8_18
DO - 10.1007/978-981-15-4680-8_18
M3 - Conference contribution
AN - SCOPUS:85092759103
SN - 9789811546792
T3 - Lecture Notes in Civil Engineering
SP - 243
EP - 257
BT - Practical Design of Ships and Other Floating Structures - Proceedings of the 14th International Symposium, PRADS 2019 - Volume 3
A2 - Okada, Tetsuo
A2 - Kawamura, Yasumi
A2 - Suzuki, Katsuyuki
PB - Springer Science and Business Media Deutschland GmbH
T2 - 14th International Symposium on Practical Design of Ships and Other Floating Structures, PRADS 2019
Y2 - 22 September 2019 through 26 September 2019
ER -