| ZHAO Yun-cai,ZHANG Xin-yu,MENG Cheng.Research Progress of Thermal Spraying Cermet Coating Post-treatment Technology[J],50(7):138-148 |
| Research Progress of Thermal Spraying Cermet Coating Post-treatment Technology |
| Received:September 10, 2020 Revised:December 10, 2020 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2021.07.013 |
| KeyWord:thermal spraying coating cermet coating post-treatment laser remelting parameters heat treatment the micro interface residual stress |
| Author | Institution |
| ZHAO Yun-cai |
School of Mechanical and Electrical Engineering, Jiangxi University of Science and Technology, Ganzhou , China |
| ZHANG Xin-yu |
School of Mechanical and Electrical Engineering, Jiangxi University of Science and Technology, Ganzhou , China |
| MENG Cheng |
School of Mechanical and Electrical Engineering, Jiangxi University of Science and Technology, Ganzhou , China |
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| Abstract: |
| Thermal spraying technology is an important surface technology in surface engineering and has been included in the national long-term plan to develop advanced manufacturing technology. Thermal spraying is a surface modification technology, and the interface between coating and substrate is the key to this technology. The paper first, from the perspective of post-processing technology of thermal spraying, reviewed the research progress of laser remelting post-processing technology and the heat treatment processing technology, brief analyzed the influence of the two kinds of post-processing techniques of ceramic coatings on metals comprehensive performance, the interface bonding strength, cohesive strength, wear resistance, residual stress, etc, and stated the influence of the external factors (laser remelting parameters, the heat treatment process parameters, the type of material, remelting method and heat treatment time, etc.) and the internal factor (the characteristics of the metal-ceramic coating itself) on the two kinds of post-processing technology. Then several materials post-treatment technologies (shot peening and hot isostatic pressing post-treatment) are introduced to analyze their effects on material properties. Secondly, from the perspective of micro-level, the principle and problems of thermal spray post-treatment technology are explored and analyzed, and the research and development direction is predicted. Finally, on the basis of previous studies, combined with coating processing technology and some material post-processing technology commonly used in recent years. This paper proposed a new post processing technology—coupling of induction remelting technology and ultrasonic deep rolling in post-treatment of sprayed coating, made a preliminary technical plan, summarized its features and innovations, and conducted an feasibility analysis. |
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