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- W4280496612 abstract "Abstract In this paper, the temperature, microstructure, residual stress and welding deformation of typical welded joints of low alloy high strength steel are calculated by using the finite element software SYSWELD. The temperature, microstructure and residual stress of Q345 low alloy high strength steel welded joint by single pass remelting and two pass remelting were numerically simulated, and the accuracy of the finite element model was verified by experiments. The numerical simulation results based on Satoh model show that the formation process and evolution mechanism of residual stress in Q345 steel at different hot temperatures. The single pass remelting weld of Q345 steel is mainly bainite with an average hardness of 310hv. The microstructure of HAZ consists of bainite, ferrite, pearlite and a small amount of martensite. With the increase of fusion line distance, the hardness of the base metal decreases. The microstructure of the base metal is ferrite and pearlite, and the average hardness is 167hv." @default.
- W4280496612 created "2022-05-22" @default.
- W4280496612 creator A5045617018 @default.
- W4280496612 date "2022-04-01" @default.
- W4280496612 modified "2023-09-30" @default.
- W4280496612 title "Study on quality of low alloy high strength steel Q345 weldment" @default.
- W4280496612 doi "https://doi.org/10.1088/1742-6596/2256/1/012011" @default.
- W4280496612 hasPublicationYear "2022" @default.
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