Microstructure and dry sliding wear behavior of MoS2/Ni-based solid self-lubrication coatings prepared by laser cladding - 文章详情页

作者：

Yang, J.-X. (Yang, J.-X..) | Liu, H.-D. (Liu, H.-D..) | Ding, X. (Ding, X..) | Lei, L. (Lei, L..) | Zuo, T.-C. (Zuo, T.-C..)

收录：

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摘要：

Ni-based　alloy　coating　with　the　additions　of　MoS2　solid　lubricants　was　successfully　prepared　on　20CrMo　steel　substrate　by　laser　cladding.　The　coating　was　free　of　cracks　and　pores,　and　had　metallurgical　bonding　with　the　substrate.　The　effects　of　solid　lubricants　on　the　microstructure　and　mechanical　properties　of　composite　coating　were　studied.　The　morphology　of　laser　cladding　layer　was　observed　by　optical　microscope　and　scanning　electron　microscope　(SEM)　,composition　analysis　was　applied　by　EDS.　Elevated　temperature　frictional　behaviors　of　MoS2/Ni　composites　were　investigated　by　MMG-10　wear　machine.　The　results　show　that　addition　of　MoS　2　can　decrease　the　friction　coefficient　remarkably　at　the　temperature　of　20-800　°C　and　with　the　increase　of　MoS2　from　0　to　8%　,　the　friction　coefficient　of　coating　decreases　gradually,besides,the　friction　coefficient　of　coating　which　has　the　same　MoS2content　decreases　at　first　and　then　increases　with　the　increase　of　temperature,and　that　with　8wt%　MoS2canreach　the　minimum　0.2　at　600　°C.

关键词：

Frictional behavior; Laser cladding; Microstructure; MoS2; Self-lubrication

作者机构：

[ 1 ] [Yang, J.-X.]Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Liu, H.-D.]Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Ding, X.]Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Lei, L.]Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Zuo, T.-C.]Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China

通讯作者信息：

[Yang, J.-X.]Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China

电子邮件地址：

yangjiaoxi@bjut.edu.cn

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