| SU Xian-yong,ZHOU Xiang-Iin,CUI Hua,ZHANG Ji-shan.Research Progress in Cold Gas Dynamic Spray Technology[J],36(5):71-74 |
| Research Progress in Cold Gas Dynamic Spray Technology |
| Received:June 06, 2007 Revised:October 10, 2007 |
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| DOI： |
| KeyWord:CGDS Processing parameter Nanostructured coatings |
| Author | Institution |
| SU Xian-yong |
State Key Laboratory for Advanced Metals and Materials,Beijing University of Science and Technology, Beijing , China |
| ZHOU Xiang-Iin |
State Key Laboratory for Advanced Metals and Materials,Beijing University of Science and Technology, Beijing , China |
| CUI Hua |
State Key Laboratory for Advanced Metals and Materials,Beijing University of Science and Technology, Beijing , China |
| ZHANG Ji-shan |
State Key Laboratory for Advanced Metals and Materials,Beijing University of Science and Technology, Beijing , China |
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| Abstract: |
| A new spraying technology called Cold Gas Dynamics Spraying process ( CGDS) , is developed based on aerodynamics recent years. It uses a low temperature supersonic gas jet ( typically below 600℃ ) to accelerate unmelted solid powders over a critical velocity at which particles impact on the substrate , deform plastically and mechanically to form the coating. Comparing with thermal spraying processes, CGDS may minimize any changes of the micro-structure, such as over-heated, oxidation and grain growing-up. The principles, features, mechanisms and parameters of the CGDS were presented. The research processes on cold-sprayed nano-structured coatings were involved. |
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