The tensile behaviors and fracture characteristics of stainless steel clad plates with different interfacial status
The tensile behaviors and fracture characteristics of stainless steel clad plates with different interfacial status
复制标题
不同界面状态不锈钢复合板的拉伸行为及断裂特性
DOI：
10.1016/j.msea.2016.10.033
复制
发表时间：
2017-01-02
期刊：
影响因子：
6.4
通讯作者：
Dong, Y. C.
中科院分区：
文献类型：
--
作者：
Liu, B. X.;Yin, F. X.;Dong, Y. C.
The mechanical properties and fracture characteristics of stainless steel clad plates by vacuum hot rolling at different rolling temperature of 1100 degrees C (S1), 1200 degrees C (S2) and 1300 degrees C (S3) are investigated in detail. The carburized layer thickness and grain size is gradually increased with the increasing rolling temperature. The sufficient alloy element diffusion, recovery and recrystallization at the bonding temperature of 1300 degrees C lead to the highest interfacial shear strength and the lowest longitudinal tensile strength among the three clad plates. However, the tensile ductility is increased with the increasing rolling temperature, which is attributed to the increased interfacial bonding strength. The strong interface can effectively delay the formation of interfacial delamination crack and premature localized necking, resulting into a prolong uniform plastic deformation stage with a low stress triaxiality. In addition, there are many intergranular tunnel cracks with the length of 50-150 mu m presented in the carburized layer due to Cr23C6 carbides on the grain boundary, which can effectively toughen the stainless steel clad plates.
