Nd:YAG laser cladding of marine propeller with ahstelloy C-22

초록

Nd:YAG laser cladding of Hastelloy C-22 with automatic wire feeding has been done to increase the lifetime for the marine propeller. The effects of processing parameters on the quality of clad layer have been investigated and clad layers have analyzed by optical microscopy and Vickers hardness tester. The method to overcome drop problem during the wire feeding has been introduced. Too fast or too slow cladding speed influenced the shape of clad. The ggod clad layer without cracks and with low dilution has been obtained with the optimum processing parameters. he very high micro hardness was achieved.