论文部分内容阅读
Hot-tearing cracks usually form near the solidus temperature.It is caused by a combination of tensile stress and metallurgical embrittlement.In order to quantify embrittlement and to incorporate it in the thermal-stress analysis,many different criteria have been developed.Among them,the submerged split-chill tensile (SSCT) test is an efficient one.This paper tries to use SSCT to estimate the critical strain of hot tearing for some steels.