Cavitation erosion behavior of laser-clad Ni-Cr-Fe-WC on brass

K. F. Tam; F. T. Cheng; Hau Chung Man

doi:10.1016/S0025-5408(02)00766-3

Cavitation erosion behavior of laser-clad Ni-Cr-Fe-WC on brass

K. F. Tam, F. T. Cheng, Hau Chung Man

Research output: Journal article publication › Journal article › Academic research › peer-review

42 Citations (Scopus)

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.

Original language	English
Pages (from-to)	1341-1351
Number of pages	11
Journal	Materials Research Bulletin
Volume	37
Issue number	7
DOIs	https://doi.org/10.1016/S0025-5408(02)00766-3
Publication status	Published - 1 Jun 2002

Keywords

A. Alloy
B. Laser deposition
C. Electron microscopy
D. Mechanical properties
D. Microstructure

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/S0025-5408(02)00766-3

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title = "Cavitation erosion behavior of laser-clad Ni-Cr-Fe-WC on brass",

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.",

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AU - Tam, K. F.

AU - Cheng, F. T.

AU - Man, Hau Chung

PY - 2002/6/1

Y1 - 2002/6/1

N2 - 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.

AB - 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.

KW - A. Alloy

KW - B. Laser deposition

KW - C. Electron microscopy

KW - D. Mechanical properties

KW - D. Microstructure

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DO - 10.1016/S0025-5408(02)00766-3

M3 - Journal article

SN - 0025-5408

VL - 37

SP - 1341

EP - 1351

JO - Materials Research Bulletin

JF - Materials Research Bulletin

IS - 7

ER -

Cavitation erosion behavior of laser-clad Ni-Cr-Fe-WC on brass

Abstract

Keywords

ASJC Scopus subject areas

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