| HUANG Da,HE Wei-feng,LYU Chang-le,CAO Xin,LIAO Bin,WANG Shi-guang.Effects of Ions Implantation on Adhesion Strength and Sand Erosion Resistance of TiN/Ti Coatings on TC4 Titanium Alloy[J],49(7):184-191 |
| Effects of Ions Implantation on Adhesion Strength and Sand Erosion Resistance of TiN/Ti Coatings on TC4 Titanium Alloy |
| Received:December 18, 2019 Revised:July 20, 2020 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2020.07.023 |
| KeyWord:TC4 titanium alloy ions implantation TiN/Ti coatings adhesion strength sand erosion resistance |
| Author | Institution |
| HUANG Da |
1.Science and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi￠an , China |
| HE Wei-feng |
1.Science and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi￠an , China |
| LYU Chang-le |
1.Science and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi￠an , China |
| CAO Xin |
1.Science and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi￠an , China |
| LIAO Bin |
2.College of Nuclear Science and Technology, Beijing Normal University, Beijing , China |
| WANG Shi-guang |
1.Science and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi￠an , China |
|
| Hits: |
| Download times: |
| Abstract: |
| The work aims to improve the adhesion strength and erosion resistance of TiN/Ti coatings with ion implantation. Firstly, four different kinds of ions (Mo, Ti, Nb, Co) were implanted into TC4 substrates by metal vapor vacuum arc (MEVVA) technology, respectively. Then, TiN/Ti coatings were deposited on these TC4 substrates by FCVA. The surface roughness, surface morphology, phase structure, nano-hardness and elastic modulus of these TC4 substrates were characterized by aspheric surface measuring instrument, SEM, AFM, XRD and nano-indenter. The adhesion strength of the coatings to TC4 substrates was assessed by a scratch tester. The performance of sand erosion resistance of different samples was evaluated by the coating erosion test platform. The adhesion strength and erosion resistance of TiN/Ti coatings were improved after Mo, Ti and Nb ion implantation. Compared with the non-implanted coatings, the adhesion strength and the erosion resistance time of TiN/Ti coatings implanted by Mo ion were 71 N and 80 min, which increased by 31.5% and 77.8%, respectively. The average erosion rate of these coatings was 0.0078 mg/g, reduced by 39.5%. The adhesion strength of TiN/Ti coatings implanted with Co ion was only 40 N and the average erosion rate was 0.0433 mg/g, increased by 19.0%, and the erosion resistance decreased significantly. The sand erosion resistance of the ion implanted coatings is closely related to the adhesion strength. With the increase of the adhesion strength, the average erosion rate of TiN/Ti coatings decreases, and erosion time increases. Therefore, appropriate ion implantation can improve the erosion resistance of TiN/Ti coatings. |
| Close |
|
|
|