| FAN Qi-xiang,LIN Jing,WANG Tie-gang.The Latest Research Progress of Tool Coating Materials[J],51(2):1-19, 28 |
| The Latest Research Progress of Tool Coating Materials |
| Received:December 31, 2021 Revised:January 27, 2022 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2022.02.001 |
| KeyWord:cutting tool coating nano composite coating multilayer coating gradient coating high entropy alloy coating |
| Author | Institution |
| FAN Qi-xiang |
Tianjin Key Laboratory of High Speed Cutting and Precision Machining, Tianjin University of Technology and Education, Tianjin , China |
| LIN Jing |
Tianjin Key Laboratory of High Speed Cutting and Precision Machining, Tianjin University of Technology and Education, Tianjin , China |
| WANG Tie-gang |
Tianjin Key Laboratory of High Speed Cutting and Precision Machining, Tianjin University of Technology and Education, Tianjin , China |
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| Abstract: |
| With the development and wide application of difficult-to-machine materials and green dry cutting technology, the working environment of cutting tool is becoming more and more severe, and the coating materials are constantly developing and updating. The coating materials have evolved from the original binary coatings to ternary and multi-element coatings, and the structures have developed from single layer to multi-layer, gradient and composite structures. In this paper, the properties and characteristics of several commonly used binary coatings are introduced and summarized. Taking the Ti-based and Cr-based ternary and multicomponent coatings as example, the effects of doping elements on the microstructure and properties of coatings as well as the strengthening mechanism are elaborated. The research status, challenging problem and synergistic mechanism of doped elements are analyzed. The advantages and research status of nano-crystalline/amorphous composite coatings, nano-multilayer coatings and gradient coatings are discussed. The characteristics and research status of super-hard coatings like diamond coating, diamond-like coatings, c-BN coating and soft coatings with low friction coefficient are stated. Finally, the hot research coatings like high entropy alloy coatings, oxygen doped coatings and multicomponent coatings with multilayers are elaborated, and the development directions of tool coating materials are summarized and prospected. |
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