采用自行设计的振动式电脉冲沉积装置在Q235钢表面沉积厚度达100 (m的铝化物微晶涂层,并研究涂层的高温腐蚀行为.采用振动式电脉冲沉积技术沉积涂层时,铝电极与工件瞬时接触放电,可以达到很高的温度,从而形成了铁铝金属间化合物涂层,而且涂层与基体为冶金结合;涂层冷却速度很快,由此获得微晶结构涂层;流动的氩气可有效地保护涂层的质量.将沉积铝化物微晶涂层的Q235钢分别在600 ℃空气中氧化200 h和600 ℃ 99.98% SO2气氛中硫化50 h,然后进行SEM、EDS和XRD分析.结果表明,沉积铝化物微晶涂层后Q235钢的抗氧化和硫化性能均大幅度提高.
参考文献
| [1] | STEIN H U.Science and technology of surface coating[M].London and New York:Academic Press,1974:129. |
| [2] | JOHNSON R N.Electro-spark deposited coatings for high temperature wear and corrosion applications[A].Pennsylvania:The Minerals,Metals & Materials Society,1999:265-277. |
| [3] | Frangini S;Masci A .Intermetallic FeAl based coatings deposited by the electrospark technique: corrosion behavior in molten (Li+K) carbonate[J].Surface & Coatings Technology,2004(1):31-39. |
| [4] | LEVASHOV E A;KHARLAMOV E I;KUDRYASHOV A E;ROGACHEV A S OHYANAGI M KOIZUMI M HOSOMI S .About the method of thermoreactive electrospark surface strengthening[J].Journal of Materials Synthesis and Processing,1999,7(01):23-33. |
| [5] | E. A. Levashov;O. V. Malochkin;A. E. Kudrashov;R. Suchentrunk;F. Gammel .Effect of nanosized powders on the structure and properties of electrospark alloyed coatings[J].Journal of Materials Synthesis and Processing,2001(4):199-206. |
| [6] | LI Zheng-wei;GAO Wei;KWOK P M;LI Se-an HE Ye-dong .Electro-spark deposition coatings for high temperature oxidation resistance[J].High Temperature Materials and Processes,2000,19:443. |
| [7] | Qiang Xu;Yedong He;Huibin Qi .Oxidation behavior of micro- and nano-crystalline coatings deposited by series double-pole electro-pulse discharge[J].Materials Letters,2002(1/2):85-92. |
| [8] | Li ZW.;Gao W.;Yoshihara M.;He YD. .Improving oxidation resistance of Ti3Al and TiAl intermetallic compounds with electro-spark deposit coatings[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):243-252. |
| [9] | Zhengwei Li;Weo Gao;Yedong He .Protection of a Ti_3Al-Nb alloy by electro-spark deposition coating[J].Scripta materialia,2001(9):1099-1105. |
| [10] | 黄祖芬,何业东,王德仁,齐慧滨,雷林海,吴浩.电脉冲沉积铝化物及铝化物-Y2O3涂层[J].中国稀土学报,2001(02):150-153. |
| [11] | He Y.;Pang H.;Qi H.;Wang D.;Li Z.;Gao W. .Micro-crystalline Fe-Cr-Ni-Al-Y2O3ODS alloy coatings produced by high frequency electric-spark deposition[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2002(1/2):179-186. |
| [12] | 庞洪梅,齐慧滨,何业东,王德仁,李正伟.高频脉冲沉积微晶Ni-20Cr-Y2O3ODS合金涂层[J].中国科学B辑,2000(05):467-472. |
| [13] | 庞洪梅,何业东,齐慧滨,王德仁.高频电脉冲沉积铝化物微晶涂层的氧化行为[J].金属学报,2000(09):975-978. |
| [14] | Jing Ma;Yedong He;Deren Wang;Wei Gao .Micro-Crystalline Aluminide Coating Deposited on Fe-5Cr-Mo Steel by Vibrating Electro-Pulse Discharge[J].HIGH TEMPERATURE MATERIALS AND PROCESSES,2004(1):43-50. |
| [15] | WAGNER C .Formation of composite scales consisting of oxidation of different metals[J].Journal of the Electrochemical Society,1956,11:627-633. |
| [16] | WAGNER C .Reaktionstypen bei der oxydation von legierungen[J].Zeitschrift Fur Elektrochemie,1959,63:772-782. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%