为了探讨Cr5Mo钢表面纳米化及纳米化后退火处理对其流动加速腐蚀性能的影响,采用超声喷丸技术对Cr5Mo合金钢进行表面纳米化,采用温度、压力、流速可控密闭流动加速腐蚀试验机,对纳米化及纳米化后退火处理的Cr5Mo钢在合50 mg/L H2S去离子水溶液中的流动加速腐蚀性能进行了研究;采用扫描电镜(SEM)对腐蚀产物膜微观形貌进行了分析.结果表明:Cr5Mo钢表面纳米化后抗流动加速腐蚀性能增强,表面生成的腐蚀产物膜较致密;随着冲击强度的增加,腐蚀产物膜的致密度和完整性变差,耐蚀性能逐渐下降;纳米化后退火处理的试样腐蚀速率呈增大趋势,但随着退火温度的升高而降低,随保温时间的延长先减小后增大,保温时间2h时腐蚀速率最小.
参考文献
| [1] | Piehl R .Survey of corrosion in hydrocracker effluent air coolers[J].Materials Performance,1976,15(1):15-20. |
| [2] | Y. Chen;W. P. Jepson .EIS measurement for corrosion monitoring under multiphase flow conditions[J].Electrochimica Acta,1999(24):4453-4464. |
| [3] | 偶国富,曹海彬,朱祖超,王艳萍,包金哲.加氢含硫污水管道冲蚀临界特性的电化学测试[J].化工学报,2009(03):691-695. |
| [4] | API571,Damage mechanisms affecting fixed equipment in the refining industry[S]. |
| [5] | 何秋良 .石化工业管道典型部件冲蚀破坏预测的CFD模拟研究[D].浙江大学,2004. |
| [6] | Lu K;Lu J .Surface nanocrystallization (SNC) of metallic materials:Presentation of the concept behind a new approach[J].Materials Science Technology,1999,15(3):193-197. |
| [7] | 徐军,李俊,姜雯,业冬,龙晋明,雍歧龙,苏杰,赵昆渝.热处理对超级马氏体不锈钢腐蚀性能的影响[J].材料热处理学报,2012(03):73-77. |
| [8] | 李瑛,王福会,刘刚.表面纳米化低碳钢电化学行为尺寸效应[J].中国腐蚀与防护学报,2001(04):215-219. |
| [9] | Wei Ye;Ying Li;Fuhui Wang .Effects of nanocrystallization on the corrosion behavior of 309 stainless steel[J].Electrochimica Acta,2006(21):4426-4432. |
| [10] | Li Liu;Ying Li;Fuhui Wang .Influence of nanocrystallization on pitting corrosion behavior of an austenitic stainless steel by stochastic approach and in situ AFM analysis[J].Electrochimica Acta,2010(7):2430-2436. |
| [11] | 李雪莉,李瑛,王福会,雍兴平.USSP表面纳米化Fe-20Cr合金的腐蚀性能及机制研究[J].中国腐蚀与防护学报,2002(06):326-329,334. |
| [12] | Wang TS;Yu JK;Dong BF .Surface nanocrystallization induced by shot peening and its effect on corrosion resistance of 1Cr18Ni9Ti stainless steel[J].Surface & Coatings Technology,2006(16/17):4777-4781. |
| [13] | 吕爱强,张洋,李瑛,刘刚,刘春明.表面纳米化对316L不锈钢性能的影响[J].材料研究学报,2005(02):118-124. |
| [14] | Chui P F;Sun K N;Sun C et al.Effect of surface nanocrystallization induced by fast multiple rotations rolling on hardness and corrosion behavior of 316L stainless steel[J].Applied Surface Science,2011,257:6786-6791. |
| [15] | 石继红,武保林,刘刚.退火对表面机械研磨处理纳米化316L不锈钢性能的影响[J].材料热处理学报,2009(01):153-156. |
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%