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Title: Laser cladding of Ti-6Al-4V with various carbide powders

Journal Article · · Journal of Laser Applications; (United States)
DOI:https://doi.org/10.2351/1.4745341· OSTI ID:6930787
;  [1]
  1. Nissan Motor Co. Ltd., Yokosuka (Japan)

Laser cladding Ti-6Al-4V can be achieved with various weight percentages of different carbide powders. The microstructure and morphology of the clad layer is determined by the cladding powder composition, for a given set of laser parameters, such that 10 and 20 wt% Cr[sub 3]C[sub 2] results in a [beta] + TiC clad microstructure; 10 and 20 wt% WC results in an [alpha] + TiC clad microstructure (plus some original WC); and Mo[sub 2]C gives an [alpha] + [beta] + TiC or [beta] + TiC structure, depending on the weight percentage of Mo[sub 2]C. The morphology of the TiC in all cases is dendritic or feathery, depending on the carbide content. The microstructure observed in all cases agreed well with that theoretically predicted from the energetics of carbide formation and [beta]-stabilizing properties of each element.

OSTI ID:
6930787
Journal Information:
Journal of Laser Applications; (United States), Vol. 6:2; ISSN 1042-346X
Country of Publication:
United States
Language:
English