No abstract

By method of TIG, two kinds of welding materials were filled in, under certain welding craft conditions，1Cr18Ni9Ti and 2Cr13 were welded. By OM(ZEISS)、SEM，the microstructure of two kinds of 2Cr13 and 1Cr18Ni9Ti welding joints were observed and analyzed, by electronic universal tensile machine，mechanical properties of welding joints were measured. The results show that 2Cr13 and 1Cr18Ni9Ti welded joints is typical columnar crystal, the microstructure is lath martensite +residual austenite + carbide，the welding joints filled in two kinds of materials， rupture forms are toughness rupture; Elongation and tensile strength of welding joint filled in 308 welding material is better than that filled in H1Cr21Ni10Mn7Mo welding wire.