Experimental Study of Fatigue Life of GH2132 Butt Weld Joint at Different Temperatures

In this paper,the experiments of static strength and fatigue have been completed on GH2132 butt weld joint at two different temperatures(360℃ and 410℃).It is shown that the influence of the strain rate on the fracture stress can be neglectable.The S-N curves have also been obtained for two different temperatures.At last,the finite element analysis has been completed to predict the life of GH2132 butt weld joint with the help of S-N curves.The results have shown that the predication life of GH2132 butt weld joint can satisfy the requirement of design.