Properties of WC reinforced Ni60 coating prepared by high frequency induction cladding - 文章详情页

作者：

He, Ding-Yong (He, Ding-Yong.) (学者：贺定勇) | Xu, Jing (Xu, Jing.) | Ma, Ran (Ma, Ran.) | Jiang, Jian-Min (Jiang, Jian-Min.) | Wang, Zhi-Hui (Wang, Zhi-Hui.)

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摘要：

The　tungsten　carbide　(WC)　reinforced　Ni60A　alloy　composite　coatings　on　Q235　mild　steel　were　produced　by　high　frequency　induction　cladding.　The　microstructure,　phases　and　worn　surface　of　the　coatings　were　examined　by　means　of　scanning　electron　microscopy　(SEM)　and　X-ray　diffraction　(XRD).　Abrasive　wear　resistance　was　tested　on　a　MLS-225　wet　sand/rubber　wheel　tester.　The　results　show　that　the　composite　coating　mainly　consists　of　WC,　W2C,　Cr7C3,　Cr23C6,　Cr2B,　Ni2B,　Ni3Si　and　Ni3Fe.　The　composite　coating　is　metallurgically　bonded　to　the　substrate.　The　hardness　and　abrasive　wear　resistance　of　the　coatings　increase　with　addition　of　WC　content.　Addition　of　WC　particles　improves　wear　resistance　of　coating　2-6　fold　compared　to　that　of　Ni60A　coating.　The　coating　with　50%　WC　shows　the　best　abrasive　wear　resistance　and　about　6.5　times　higher　than　Ni60A　coating　was　observed　under　same　condition.　Predominant　wear　mechanism　of　the　coating　is　brittle　peeling　of　hard　phases　and　less　micro-ploughing.

关键词：

Abrasion Abrasive coatings Abrasives Alloy steel Carbon steel Composite coatings Nickel Reinforcement Scanning electron microscopy Tungsten carbide Wear resistance X ray diffraction

作者机构：

[ 1 ] [He, Ding-Yong]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China
[ 2 ] [Xu, Jing]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China
[ 3 ] [Ma, Ran]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China
[ 4 ] [Jiang, Jian-Min]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China
[ 5 ] [Wang, Zhi-Hui]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China

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电子邮件地址：

dyhe@bjut.edu.cn

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