| WU Lian-kui,GUO Pu-jun,ZHENG Lei,LIN Xiang-jun,XIE Ying-chun,HUANG Ren-zhong,CAO Fa-he.The Preparation and Performance Investigation of the Cold Sprayed Titanium Coating on the End Face of Titanium Steel Clad Plate[J],51(5):79-89, 120 |
| The Preparation and Performance Investigation of the Cold Sprayed Titanium Coating on the End Face of Titanium Steel Clad Plate |
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| DOI：10.16490/j.cnki.issn.1001-3660.2022.05.009 |
| KeyWord:cold spraying titanium coating titanium steel clad plate corrosion resistance wear resistance |
| Author | Institution |
| WU Lian-kui |
School of Materials, Sun Yat-sen University, Guangdong Shenzhen , China |
| GUO Pu-jun |
School of Materials, Sun Yat-sen University, Guangdong Shenzhen , China |
| ZHENG Lei |
Institute of Defense Engineering, AMS, PLA, Beijing , China |
| LIN Xiang-jun |
Institute of Defense Engineering, AMS, PLA, Beijing , China |
| XIE Ying-chun |
National Engineering Laboratory for Modern Materials Surface Engineering Technology, Institute of New Materials, Guangdong Academy of Sciences, Guangdong Guangzhou , China |
| HUANG Ren-zhong |
National Engineering Laboratory for Modern Materials Surface Engineering Technology, Institute of New Materials, Guangdong Academy of Sciences, Guangdong Guangzhou , China |
| CAO Fa-he |
School of Materials, Sun Yat-sen University, Guangdong Shenzhen , China |
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| Abstract: |
| To improve the service performance of the titanium steel clad plate, titanium coating was prepared on the end face of the titanium steel clad plate by cold spraying. The influence of powder gas pressure and temperature on the structure microhardness, wear resistance, bonding and corrosion resistance on the titanium coatings were evaluated by X-ray diffraction spcetra, scanning electron microscopy, X-ray energy spectroscopy, Vickers hardness test, bonding test, friction wear test, electrochemical test and salt spray test. Results show that the cold sprayed titanium coating has good wear resistance. Increasing the powder gas pressure and temperature can reduce the porosity of the coating and increase the microhardness of the coatings. EDS analysis and XRD results showed that the coating is mainly composed of Ti. The interface of the titanium coating/substrate is clear and no obvious elements diffusion is observed between them. The polarization resistance of the titanium coating prepared with the powder feeding gas pressure of 5 MPa and the powder feeding temperature of 900 ℃ exhibited the highest polarization resistance. The surface of titanium coatings remained intact and no obvious corrosion occurred after underwent 1 000 h neutral salt spray accelerated corrosion test. This indicates that the cold sprayed titanium coating can effectively improve the service performance of titanium steel clad plate under marine environment. |
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