Effect of plasma transferred arc current on the carbide formation and mechanical properties in additively manufactured metal matrix composite coating - Details

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Abstract：

MC-type　carbide-reinforced　metal　matrix　composites　(MMCs)　coatings　are　additively　manufactured　by　plasma　transferred　arc　(PTA)　on　Q235　steel　under　different　arc　currents　ranging　from　120　A　to　160　A.　The　microstructure,　elemental　distribution,　hardness,　and　wear　resistance　of　MMCs　coatings　are　studied.　The　results　show　that　the　MMCs　coating　possesses　a　high　hardness　up　to　1112.1　HV1.0,　30.3　%　volume　fraction　of　carbides,　and　excellent　wear　resistance　when　PTA　main　arc　current　is　140　A.　The　mechanical　performance　improvement　is　in　that　the　MMCs　coatings　manufactured　at　140　A　have　the　highest　density　of　finer　fishbone-shaped　carbides　and　favorable　size　uniformity,　compared　with　other　main　arc　currents.　©　2024　Elsevier　B.V.

Keyword：

3D printing Additives Carbides Composite coatings Hard facing Hardness Metallic matrix composites Plasma torches Plasma welding Wear of materials Wear resistance

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[ 1 ] [Li, Shang]State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan; 430074, China
[ 2 ] [Zhou, Chuhao]State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan; 430074, China
[ 3 ] [Li, Beibei]State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan; 430074, China
[ 4 ] [Dong, Xuanpu]State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan; 430074, China
[ 5 ] [Xiang, Hongliang]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou; 350108, China
[ 6 ] [Qin, Shiying]Warwick Manufacturing Group, The University of Warwick, Coventry; CV4 7AL, United Kingdom
[ 7 ] [Tong, Xiangyang]PTA Max Co., Ltd., Wuhan; 430074, China
[ 8 ] [Cao, Huatang]State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan; 430074, China

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Source ：

Materials Letters

ISSN： 0167-577X

Year： 2024

Volume： 363

2 . 7 0 0

JCR@2023

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ESI Highly Cited Papers on the List： 0 Unfold All

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