Microstructure and wear behavior of Fe-based coating prepared by plasma transferred arc-welding - 文章详情页

作者：

Yao, Haihua (Yao, Haihua.) | Zhou, Zheng (Zhou, Zheng.) (学者：周正) | He, Dingyong (He, Dingyong.) (学者：贺定勇) | Zhao, Qiuying (Zhao, Qiuying.) | Li, Ran (Li, Ran.)

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摘要：

A　new　Fe-based　alloy　powder　was　designed　to　prepare　coatings　by　plasma　transferred　arc-welding　(PTAW)　process　on　AISI304L　stainless　steel　substrate.　The　microstructure　and　wear　behavior　of　the　relative　coating　were　detected　by　XRD,　SEM　and　a　rubber　wheel　abrasive　testing　machine　respectively,　in　comparison　with　that　of　the　traditional　NiCrBSi　and　NiCrBSi+25%WC　coatings.　The　results　show　that　the　matrix　of　Fe-based　coating　consists　of　Fe-Cr　solid　solution　and　γ-Fe　phase,　surrounded　by　numerous　dispersed　Mo-rich　borides　and　M23(B,　C)6　hard　phases,　which　contribute　to　support　and　strengthen　the　coating　organization.　The　Fe-based　coating　exhibits　high　average　hardness　of　64.2　HRC,　and　excellent　wear　resistance　which　is　better　of　that　of　the　NiCrBSi+25%WC　coating　and　exceeds　8　times　of　that　of　the　NiCrBSi　coating.

关键词：

Abrasive coatings Binary alloys Boron compounds Electric arc welding Hard facing Iron alloys Microstructure Nickel compounds Plasma torches Plasma welding Powder coatings Silicon compounds Testing Wear of materials Wear resistance

作者机构：

[ 1 ] [Yao, Haihua]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Zhou, Zheng]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [He, Dingyong]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Zhao, Qiuying]Postdoctoral Research Station of Mechanical Engineering, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Li, Ran]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China

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电子邮件地址：

zhouzhengbjut@bjut.edu.cn

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