作者：LIUShuo; ZHANGWei-ping; MAYu-tao宽带激光包覆金属陶瓷显微结构机械性质
摘要：Large-area in-situ synthesized TiB2 (TiB, Fe2B)-Fe metal-ceramic composite coating has been fabricated on medium carbon steel by laser cladding with the optimal laser parameters and overlapping coefficient. The bonding interfaces between the cladding layer and the matrix and among different tracks are excellent. Microanalysis on the cladding layer shows that the morphology is a little different from each other and the element distribution and the mechanical properties are unanimous in each track while the mechanical property of the cladding layer shows a gradual change from the surface to the matrix. The in-situ separating out thin ceramic phases in the coating contribute to the improving of its properties greatly.
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