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The microstructure and stress distribution on T-joint of China Low Activation Martensitic steel was investigated in this research. Two kinds of grooves, single bevel groove and K groove, were prepared to study the residual deformation of T-joint. Microstructure and microhardness distributions along web plate on K groove sample were detected. The distributions of the longitudinal and transverse residual...
China low activation martensitic steel, 5 mm, were butt-welded in tungsten insert gas welding. Mechanical properties and microstructure in joints were studied in detail. The residual stress and deformation in the joints were numerically simulated using finite element method. Hardening at WM and softening in heat affected zone is detected in weld joint. The tensile specimen always undergoes localized...
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