Study on Properties of Supersonic Plasma Sprayed WC-17Co nano-coating

Home > Archive>Volume 46, Issue 3, 2017 >807-811

Study on Properties of Supersonic Plasma Sprayed WC-17Co nano-coating
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                        Li WanqingLi Wanqing
State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology
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Lin TiesongLin Tiesong
State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology
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Song ChaoqunSong Chaoqun
State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology
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He PengHe Peng
State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology
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Wang QiyueWang Qiyue
State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology
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Affiliation:State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology,State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology,State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology,State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology,State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology
Clc Number:TG174.442
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Abstract:

The nano and micro WC-17Co coatings were fabricated on the 0Cr13Ni5Mo stainless steel by supersonic plasma spraying method. The porosity, adhesive strength, hardness and wear resistance of both coatings were compared. The results indicate that the porosity and adhesive strength of nano-coating (i.e., 0.56% and over 69.2 MPa) are higher than those of micro-coating. The hardness of nano-coating and micro-coating are 3.9 and 3.8 times more than that of matrix, respectively. The hardness of both coating will gradually increase from its top to bottom. The wear mechanisms of matrix were adhesive wear, abrasive wear and delamination, while the coatings only suffered adhesive wear. The lower porosity, higer hardness and stonger compressive resistance of nano-coating result in its excellent wear resistance.

Key words:supersonic plasma spraying; nano-coating; WC-17Co; wear

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[Li Wanqing, Lin Tiesong, Song Chaoqun, He Peng, Wang Qiyue. Study on Properties of Supersonic Plasma Sprayed WC-17Co nano-coating[J]. Rare Metal Materials and Engineering,2017,46(3):807~811.]
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Received:November 21,2014
Revised:January 10,2015
Adopted:February 06,2015
Online: May 18,2017
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