Crack Free Tungsten Carbide Reinforced Ni(Cr) Layers obtained by Laser Cladding

被引：45

作者：

Amado, J. M. ^{[1
]}

Tobar, M. J. ^{[1
]}

Yanez, A. ^{[1
]}

Amigo, V. ^{[2
]}

Candel, J. J. ^{[2
]}

机构：

[1] Univ A Coruna, Campus Esteiro S-N, Ferro 15403, Spain

[2] ITM UPV, Valencia 46022, Spain

来源：

LASERS IN MANUFACTURING 2011: PROCEEDINGS OF THE SIXTH INTERNATIONAL WLT CONFERENCE ON LASERS IN MANUFACTURING, VOL 12, PT A | 2011年 / 12卷

关键词：

laser cladding; hardfacing; MMC; tungsten carbides; NiCr-WC; WEAR-RESISTANCE;

D O I：

10.1016/j.phpro.2011.03.043

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The development of hardfacing coatings has become technologically significant in many industries A common approach is the production of metal matrix composites (MMC) layers. In this work NiCr-WC MMC hardfacing layers are deposited on C25 steel by means of laser cladding. Spheroidal fused tungsten carbides is used as reinforcement phase. Three different NiCr alloys with different Cr content were tested. Optimum conditions to obtain dense, uniform carbide distribution and hardness close to nominal values were defined. The effect of Cr content respect to the microstructure, susceptibility for cracking and the wear rate of the resulting coating will also be discussed.

引用

页码：338 / 344

页数：7

共 8 条

[1] Laser cladding of tungsten carbides (Spherotene®) hardfacing alloys for the mining and mineral industry [J].

Amado, J. M. ;

Tobar, M. J. ;

Alvarez, J. C. ;

Lamas, J. ;

Yanez, A. .

APPLIED SURFACE SCIENCE, 2009, 255 (10) :5553-5556

[2] The fracture toughness and toughening mechanisms of nickel-base wear materials [J].

Cockeram, BV .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2002, 33 (01) :33-56

[3]

Davis J.R., 2000, ASM Speciality Handbook-Nickel, Cobalt, and their Alloys

[4]

Gassmann RC, 1996, MATER SCI TECH-LOND, V12, P691, DOI 10.1179/026708396790122459

[5] Abrasive wear performance and microstructure of laser clad WC/Ni layers [J].

Huang, SW ;

Samandi, M ;

Brandt, A .

WEAR, 2004, 256 (11-12) :1095-1105

[6]

Steen WM., 2003, Laser material processing, V3rd

[7] Influence of tungsten carbide particle size and distribution on the wear resistance of laser clad WC/Ni coatings [J].

Van Acker, K ;

Vanhoyweghen, D ;

Persoons, R ;

Vangrunderbeek, J .

WEAR, 2005, 258 (1-4) :194-202

[8]

Zum GahrK.-H., 1987, Microstructure and wear of materials, V10

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