Crack Free Tungsten Carbide Reinforced Ni(Cr) Layers obtained by Laser Cladding
[EN] 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 tungst...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2011 |
| País: | España |
| Institución: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/37418 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/37418 |
| Access Level: | acceso abierto |
| Palabra clave: | Hardfacing Laser cladding MMC NiCr-WC Tungsten carbides Carbide distribution Cr content Crack free Hardfacing layers Metal matrix composites Ni-Cr alloys Optimum conditions Reinforcement phase Wear rates Chromate coatings Chromium Manufacture Metallic matrix composites Tungsten Tungsten carbide CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA |
| Sumario: | [EN] 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. © 2011 Published by Elsevier Ltd. |
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