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- W2381999257 abstract "The weldability of HR-2 hydrogen,resistant stainless steel(HRSS) was assessed using laser beam,the mechanical properties and SEM fracture morphologies of welded joint,the metallographic microstructure,the morphology and composition of weld porosity were analyzed.The results showed that the tensile strength of welded joint of the HR-2 HRSS by laser welding was up to 755 MPa,even higher than the base metal,while the contraction of cross sectional area and the impact toughness relatively decreased.The fracture mechanism with congregated microporosities,the same with that of the base metal,showed that the welded joint still had good toughness.There were no obvious burning loss of alloying elements,overfull oxid and de,oxid in the weld area.The heat,affected zone was narrow,bonding with the base metal favorably.When the HR-2 HRSS was welded by laser deep penetration welding,not only the reaction blowhole and precipitating gas were prone to appear in weld,but also the specific key hole type of porosity to laser welding more likely to occur." @default.
- W2381999257 created "2016-06-24" @default.
- W2381999257 creator A5065740608 @default.
- W2381999257 date "2012-01-01" @default.
- W2381999257 modified "2023-09-23" @default.
- W2381999257 title "Metallographic structure and properties analysis of welded joint in HR-2 hydrogen,resistant stainless steel by laser welding" @default.
- W2381999257 hasPublicationYear "2012" @default.
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