|
| Microstructure and Friction Behavior of TiAlYN Coating on the Surface of Gun Barrel |
| Received:October 28, 2024 Revised:December 11, 2024 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2025.01.003 |
| KeyWord:gun barrel physical vapor deposition magnetron sputtering multi-arc ion plating gas flow TiAlYNcoating friction behavior |
| Author | Institution |
| WU Chenyang |
School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an , China |
| GUO Qiaoqin |
School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an , China |
| YANG Zhong |
School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an , China |
| QI Yuanhao |
School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an , China |
|
| Hits: |
| Download times: |
| Abstract: |
| Aiming at the problem of serious wear and tear of the inner chamber of the gun barrel, the work aims to adopt physical vapor deposition for coating preparation to extend the service life of the gun barrel. The TiAlYN coating was prepared on the gun barrel substrate by changing the flow ratio of nitrogen to argon through magnetron sputtering/multi-arc ion plating. The effects of different Y contents on the microstructure and friction behavior of the coating were investigated. The microstructure, element content and phase composition of the coating were characterized by SEM, EDS and XRD. The three-dimensional morphologies and bonding force of the coating were analyzed by white light interferometer and scratch meter, and the friction behavior of the coating was studied by friction and wear testing machine. With the increase of Y content, the grain of the coating was gradually refined, the density increased, and there was no hole defect and columnar growth. The (200) crystal surface had an obvious preferential growth trend, showing a face-centered cubic structure. With the increase of argon flow ratio in the chamber, the maximum bonding force was 54 N. When the flow ratio of N2:Ar was 40:60, the friction coefficient of the coating reached the minimum value 0.4, and the wear mechanism was mainly abrasive wear and oxidation wear. The fine grain strengthening of Y element improves the coating quality and the bonding strength between the coating and the substrate. The Y2O3 phase formed in the coating improves the wear resistance of the coating, and the TiAlYN coating provides a theoretical and practical basis for the wear resistance and life extension of gun barrels. |
| Close |
|
|
|