Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/31461
Title: Cavitation erosion behavior of laser-clad Ni-Cr-Fe-WC on brass
Authors: Tam, KF
Cheng, FT
Man, HC 
Keywords: Alloy
Laser deposition
Electron microscopy
Mechanical properties
Microstructure
Issue Date: 2002
Publisher: Pergamon Press
Source: Materials research bulletin, 2002, v. 37, no. 7, p. 1341-1351 How to cite?
Journal: Materials research bulletin 
Abstract: Laser surface modification of brass with an alloy-ceramic composite powder Ni-Cr-Fe-WC was studied using a two-step process, with powder preplacement followed by laser irradiation. For preplaced coatings of a few 100 μm thick, successfully cladding/alloying was achieved at a laser (CW Nd:YAG) energy density in the range 60-100 J/mm2. Under proper processing conditions, the cavitation erosion resistance was increased by a factor of 9.1. This large increase was attributed to the formation of a Ni-rich matrix reinforced by precipitated carbides and tightly bound WC particles.
URI: http://hdl.handle.net/10397/31461
ISSN: 0025-5408
DOI: 10.1016/S0025-5408(02)00766-3
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