High power diode laser clad Cu-Wc-Ni composite coatings on brass for wear resistance enhancement - 文章详情页

作者：

Yan, An Ru (Yan, An Ru.) | Wang, Zheng (Wang, Zheng.) | Wang, Zhi Yong (Wang, Zhi Yong.) (学者：王智勇)

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EI Scopus

摘要：

To　improve　the　wear　resistance　of　brass　substrate　while　retaining　the　electrical　conductivity,　laser　cladding　was　applied　to　Cu-WC-Ni　composite　coating　on　brass　using　High　Power　Diode　Laser.　Microstructures,　phase　constitution　and　wear　properties　are　investigated　by　means　of　scanning　electronic　microscopy　with　energy　disperse　spectroscopy　and　X-ray　diffraction,　as　well　as　microhardness　test　and　speed　friction　and　wear　test.　The　result　shows　that　microhardness　and　wear　resistance　of　clad　coating　were　improved　obviously　compared　with　the　brass　substrate　owing　to　the　addition　of　WC　ceramic　phase,　when　the　content　of　WC　is　25%,　the　hardness　of　coating　is　4　times　of　substrate,　as　well　the　cumulation　mass　loss　is　1/19　of　substrate.　Electrical　conductivity　did　not　change　as　copper　powder　had　high　electrical　conductivity.　©　(2013)　Trans　Tech　Publications,　Switzerland.

关键词：

Brass Composite coatings Copper powder Electric conductivity Laser beam welding Laser cladding Manufacture Microhardness Nickel Substrates Tungsten carbide Wear of materials Wear resistance X ray diffraction

作者机构：

[ 1 ] [Yan, An Ru]Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Wang, Zheng]Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Wang, Zhi Yong]Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China

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