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| Deposition Technology of TiN Coatings Prepared by Arc Ion Plating |
| Received:December 24, 2018 Revised:May 25, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2019.05.014 |
| KeyWord:arc ion plating technology TiN coating hardness residual stress friction and wear |
| Author | Institution |
| HOU Xiang |
Tianjin Key Laboratory of High Speed Cutting and Precision Manufacturing, Tianjin University of Technology and Education, Tianjin , China |
| WANG Tie-gang |
Tianjin Key Laboratory of High Speed Cutting and Precision Manufacturing, Tianjin University of Technology and Education, Tianjin , China |
| LIU Yuan |
Tianjin Key Laboratory of High Speed Cutting and Precision Manufacturing, Tianjin University of Technology and Education, Tianjin , China |
| ZHANG Jiao-jiao |
Tianjin Key Laboratory of High Speed Cutting and Precision Manufacturing, Tianjin University of Technology and Education, Tianjin , China |
| ZHU Qiang |
Tianjin Key Laboratory of High Speed Cutting and Precision Manufacturing, Tianjin University of Technology and Education, Tianjin , China |
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| Abstract: |
| Objective To optimize the preparation process of TiN coating deposited by arc ion plating, analyze the influence mechanism of different N2/Ar on microstructure and mechanical properties of the coating, and further strengthen and study the excellent performance of TiN coating. Methods The TiN coating was prepared by arc ion plating under different N2/Ar conditions. The microstructure and mechanical behavior of the coating was tested by scanning electron microscope, X-ray diffractometer, ultra depth of field microscope, vickers hardness tester, coating stress meter and high temperature friction machine. Results With the increase of N2/Ar, the surface morphology of the coating was improved, the number and size of large particles on the surface of the coating were significantly reduced, and the surface became smooth and compact. The growth orientation of TiN coating was preferentially grown along the (110) crystal plane and gradually changed to preferential growth along the (111) crystal plane, and the microhardness of the coating is increased, the highest hardness was 2,260 HV. When the N2/Ar was 2:1, the friction coefficient was at least 0.707, and the wear rate was at least 1.5×10-2 μm3•N-1•μm-1, the wear marks were clear and the defects such as large particles and wear debris were less. Conclusion When N2/Ar is 2:1, TiN coating has good microstructure and the best mechanical properties. |
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