Abstract
Tensile shear test is a suitable method to measure the interfacial bonding properties of stainless steel clad plates with thin cladding layer. Herein, three kinds of testing samples with different shapes (modes I, II and III) fractured at carbon steel substrate, stainless steel cladding, and interfacial zone, respectively. Interestingly, the tensile strength of carbon steel substrate (σbcs), stainless steel cladding (σbss), and the interfacial shear strength of stainless steel clad plate (τin) can be obtained from the three testing samples. The values of σbcs and σbsswere decreased, while τin was increased with the increasing rolling temperature, which were attributed to mechanisms of matrix softening and interface strengthening at high rolling temperatures. Moreover, under mode III, the shear fractures of clad plates rolled at 1375K and 1475K were located at interface and decarburized layer, respectively. The different fracture characteristics may be related to the sufficient carbon diffusion and interface toughening at a high rolling temperature.
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