| ZHAN Hua,ZHANG Yan,LI Zhen-dong,WANG Yi-qi,LI Bi-han,WANG Rui-jun.Study on the Friction and Wear Performance of Hard Film and Self-lubricating Fabric Liner[J],50(11):243-249 |
| Study on the Friction and Wear Performance of Hard Film and Self-lubricating Fabric Liner |
| Received:January 05, 2021 Revised:May 14, 2021 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2021.11.025 |
| KeyWord:Titanium alloy TiN film CrAlN film self-lubricating fabric liner transfer film friction and wear properties |
| Author | Institution |
| ZHAN Hua |
Beijing Jinlunkuntian Special Machine Co., Ltd., Beijing , China;Chinese Academy of Agricultural Mechanization Sciences Group Co., Ltd., Beijing , China |
| ZHANG Yan |
Shenyang Aircraft Design & Research Institute, AVIC, Shenyang , China |
| LI Zhen-dong |
Beijing Jinlunkuntian Special Machine Co., Ltd., Beijing , China;Chinese Academy of Agricultural Mechanization Sciences Group Co., Ltd., Beijing , China |
| WANG Yi-qi |
Beijing Jinlunkuntian Special Machine Co., Ltd., Beijing , China |
| LI Bi-han |
Beijing Jinlunkuntian Special Machine Co., Ltd., Beijing , China |
| WANG Rui-jun |
Beijing Jinlunkuntian Special Machine Co., Ltd., Beijing , China;Chinese Academy of Agricultural Mechanization Sciences Group Co., Ltd., Beijing , China |
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| Abstract: |
| In order to improve the wear resistance of titanium alloy and self-lubricating fabric liner, TiN and CrAlN hard films were prepared on the surface of TC4 titanium alloy by multi-arc ion plating. Using scanning electron microscope, X-ray diffractometer, nanoindenter, pin-disk friction and wear tester, and white light interference scanning profiler to test and analyze the morphology, structure, hardness, elastic modulus, friction and wear performance and wear scar morphology of the film. The results show that under the same test conditions, the TC4 titanium alloy and the self-lubricating fabric liner enter the stable friction stage faster when rubbing, and the stable average friction coefficient was the lowest, only 0.12. Compared with the TC4 titanium alloy pin, the time required for the TiN film to enter stable friction and the stable average friction coefficient increase, and the time required for the CrAlN film to enter stable friction was the longest and the stable average friction coefficient was the largest. The two-dimensional profile of the wear scar of the self-lubricating fabric liner was measured after friction and wear, and it was found that the maximum depth of the wear scar of the self-lubricating fabric liner worn by the CrAlN film was the largest, but the wear rate was indeed the lowest, which was mainly caused by uneven wear of the soft fabric cushion. Further analysis found that the transfer film was formed on the surface of all test pins, but the transfer film thickness formed on the surface of the CrAlN film was the thinnest, which resulted in the largest friction coefficient and the lowest wear rate. In-depth analysis of the wear scar morphology of the self-lubricating fabric liner found that the wear scar of the self-lubricating fabric liner worn with TC4 titanium alloy is characterized by abrasive wear and fiber bundle damage. The wear marks of the self-lubricating fabric liner worn against the TiN film are represented by area loss and irregular surface dents. In the wear scars of the self-lubricating fabric liner worn by the CrAlN film, the fiber bundle damage was serious. In short, after grinding with the self-lubricating fabric liner, the thickness of the CrAlN film surface transfer film was the thinnest, and the wear rate of the self-lubricating fabric liner was the lowest. |
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