Microstructure and properties of laser cladding coating at the end of L415/316L bimetal composite pipe

This article attempts to use the laser cladding to realize the metallurgical combination of the ends of L415/316L bimetal mechanical lined pipe. For the convenience of the tests on mechanical properties, two kinds of nickel-based alloy powders, self-fluxing alloy powder (SFAP) and non-self-fluxing alloy powder (NSFAP), were cladded on substrate L415 sheet. The microstructure of two cladding coatings was analyzed by optical microscopy (OM) and...