Abstract:The isothermal oxidation behavior at 1 100℃ and tensile deformation behavior at the range of 20℃ to
1 100℃ of solution strengthening XG3232 wrought superalloy were investigated systematically by optical microscopy,
scanning electron microscopy, X-ray diffraction and elevated temperature mechanical testing machine. The results
show that the oxide film consisting of Cr2O3,NiO and ( Ni,Mn,Cr)3O4 is formed on the alloy surface at the initial
stage of oxidation. After long time oxidation, the oxide film transforms form monolayer to bilayer,and continuous Cr2O3
film forms in inner layer and compact NiO oxide film restrained volatile of inner layer Cr2O3 forms in outer layer. The
superalloy exhibits a strength of 131 MPa and elongation of 66. 2% at 1 100℃ in tensile test. The ultimate and yield
strength of the alloy gradually decrease with increase of temperature when the temperature is below 650℃. Above
650℃,the ultimate strength decreases rapidly and the yield strength remains. Meanwhile,the elongation and section
shrinkage varies slightly below 650℃ while increases rapidly above 650℃.