采用冷气动力喷涂技术在低碳钢表面制备了304不锈钢涂层,并分别进行300、600、800和950 ℃保温1 h的退火热处理,研究了不同退火温度对涂层组织和耐蚀性能的影响.结果表明:冷喷涂涂层由大量变形粒子搭接构成,粒子间界面清晰可见.950 ℃退火处理后,涂层组织由等轴晶构成,大量粒子间界面消失.电化学测试结果表明涂层的腐蚀速率随退火温度升高而降低,涂层在950 ℃退火条件下达到最低腐蚀速率0.145 mm/y.
参考文献
| [1] | Stoltenhoff T;Kreye H;Richter H J .An analysis of the cold spray process and its coatings[J].Journal of Thermal Spray Technology,2002,11(04):542-550. |
| [2] | F. Gartner;T. Schmidt;T. Stoltenhoff;H. Kreye .Recent Developments and Potential Applications of Cold Spraying[J].Advanced Engineering Materials,2006(7):611-618. |
| [3] | 王爱萍,常新春,侯万良,王建强.镍基非晶合金涂层的制备与腐蚀性能[J].金属学报,2006(05):537-539. |
| [4] | Y.H. Yoo;S.H. Lee;J.G. Kim .Effect of heat treatment on the corrosion resistance of Ni-based and Cu-based amorphous alloy coatings[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2008(1/2):304-311. |
| [5] | Guilemany JM;Fernandez J;Espallargas N;Suegama PH;Benedetti AV .Influence of spraying parameters on the electrochemical behaviour of HVOF thermally sprayed stainless steel coatings in 3.4% NaCl[J].Surface & Coatings Technology,2006(9):3064-3072. |
| [6] | Kawakita J;Fukushima T;Kuroda S et al.Corrosion behaviour of HVOF sprayed SUS316L stainless steel in seawater[J].Corrosion Science,2002,44(11):2561-2581. |
| [7] | Wen-Ya Li;Hanlin Liao;G. Douchy .Optimal design of a cold spray nozzle by numerical analysis of particle velocity and experimental validation with 316L stainless steel powder[J].Materials & Design,2007(7):2129-2137. |
| [8] | C. BORCHERS;T. SCHMIDT;F. GAERTNER;H. KREYE .High strain rate deformation microstructures of stainless steel 316L by cold spraying and explosive powder compaction[J].Applied physics, A. Materials science & processing,2008(3):517-526. |
| [9] | T. Schmidt;F. Gartner;H. Assadi .Development of a generalized parameter window for cold spray deposition[J].Acta materialia,2006(3):729-742. |
| [10] | Sundararajan, G;Phani, PS;Jyothirmayi, A;Gundakaram, RC .The influence of heat treatment on the microstructural, mechanical and corrosion behaviour of cold sprayed SS 316L coatings[J].Journal of Materials Science,2009(9):2320-2326. |
| [11] | Hamid Assadi;Frank Gartner;Thorsten Stoltenhoff .Bonding mechanism in cold gas spraying[J].Acta materialia,2003(15):4379-4394. |
| [12] | C. Borchers;F. Gartner;T. Stoltenhoff .Formation of persistent dislocation loops by ultra-high strain-rate deformation during cold spraying[J].Acta materialia,2005(10):2991-3000. |
| [13] | Borchers C;Gartner F;Stoltenhoff T;Kreye H .Microstructural bonding features of cold sprayed face centered cubic metals[J].Journal of Applied Physics,2004(8):4288-4292. |
| [14] | 黄培云.粉末冶金原理[M].北京:冶金工业出版社,1982 |
| [15] | Herring C .Effect of change of scale on sintering phenomena[J].Journal of Applied Physics,1950,21(04):301-303. |
| [16] | Gutaman E M;金石.金属力学化学与腐蚀防护[M].北京:科学出版社,1989 |
| [17] | Simnad M T;Evans U R .The influence of stress upon the electrode potential and polarization of iron and steel in acid solution[J].Transactions of the Faraday Society,1950,46(03):175-186. |
| [18] | C. Garcia;F. Martin;P. De Tiedra .Effects of prior cold work and sensitization heat treatment on chloride stress corrosion cracking in type 304 stainless steels[J].Corrosion Science,2001(8):1519-1539. |
| [19] | 吕国诚,程海东,许淳淳,何宗虎.应变和氯离子浓度对304不锈钢点蚀敏感性的影响[J].中国化学工程学报（英文版）,2008(02):314-319. |
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