Abrasive resistance of arc sprayed coatings containing Fe-based amorphous phase - 文章详情页

作者：

Fu, Bin-You (Fu, Bin-You.) | He, Ding-Yong (He, Ding-Yong.) (学者：贺定勇) | Zhao, Li-Dong (Zhao, Li-Dong.)

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摘要：

A　Fe-based　cored　wire　was　used　to　deposit　coatings　containing　Fe-based　amorphous　phase　on　the　Q235　steel　substrate　by　arc　spraying.　The　microstructure　of　the　coating　was　investigated　by　optical　microscopy.　Scanning　electron　microscopy　and　X-ray　diffraction　analysis　were　used　to　study　the　phase　composition　in　the　coating.　The　coating　contains　Fe-based　amorphous　phase,　the　fraction　of　amorphous　phase　was　calculated　by　fitting　Pseudo-Voigt　function　to　diffraction　peak　of　XRD.　The　coating　has　homogenous　laminated　microstructure　and　contains　only　a　little　micro-pores,　and　it　has　high　hardness　and　exhibited　good　wear　resistance,　the　microhardness　values　were　between　HV900-1050,　the　relative　wear　resistance　is　12.2　times　more　than　Q235　steel　under　the　same　test　condition.　The　main　wear　mechanism　is　brittle　flaking-off.

关键词：

Abrasion Abrasive coatings Amorphous materials Iron metallography Microstructure Nanocrystallites Scanning electron microscopy Sprayed coatings Wear of materials Wear resistance X ray powder diffraction

作者机构：

[ 1 ] [Fu, Bin-You]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Fu, Bin-You]Surface Engineering Institute, RWTH Aachen University, Juelicher Str. 334a, Germany
[ 3 ] [He, Ding-Yong]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Zhao, Li-Dong]Surface Engineering Institute, RWTH Aachen University, Juelicher Str. 334a, Germany

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