采用MSH型腐蚀磨损实验机,通过改变水砂两相流的冲击速度、含砂量和固相粒径等环境因素,研究了电沉积Ni-P非晶合金的冲蚀-腐蚀磨损行为。结果表明,电沉积Ni-P非晶合金的冲蚀失重率和冲蚀-腐蚀失重率均随着冲击速度、含砂量和固相粒径的增加而增大。与AISI 304不锈钢相比,电沉积Ni-P非晶合金冲蚀失重率和总失重率较高,但腐蚀失重率较低,也表现出了良好的抗冲蚀-腐蚀磨损性能。棒状Ni-P非晶合金镀层的冲蚀-腐蚀磨损,正面以砂粒挤压锻打造成的唇片和断裂为主,侧面以切削和犁削为主。
With the variation of impingement velocity,sand content and sand size,erosion-corrosion behavior of amorphous Ni-P electrodeposits was investigated using model MSH erosion-corrosion equipment in this paper.Results show that the mass loss rates of erosion and erosion-corrosion increased with impingement velocity,sand content and sand size.Compared with AISI 304 SS,the mass loss rate of erosion and total mass loss rate of amorphous Ni-P electrodeposits are higher,but mass loss rate of corrosion is lower.And it also suggests amorphous Ni-P electrodeposits have good erosion-corrosion resistance.The erosion-corrosion mechanism of rod amorphous Ni-P electrodeposits is lip and fracture on its frontal side and cutting and furrow on its lateral side.
参考文献
| [1] | Zheng Y G;Yu H;Jiang S L et al.[J].Wear,2008,264:1051-1058. |
| [2] | Stack M M;Pungwiwat N .[J].Wear,2004,256:565-576. |
| [3] | Rajahram S S;Harvey T J;Wood R J K .[J].Wear,2009,267:244-254. |
| [4] | Lopez D;Falleiros N A;Tsehiptschin A P .[J].Wear,2007,263:347-354. |
| [5] | Huang, H.-C.;Chung, S.-T.;Pan, S.-J.;Tsai, W.-T.;Lin, C.-S. .Microstructure evolution and hardening mechanisms of Ni-P electrodeposits[J].Surface & Coatings Technology,2010(7):2097-2103. |
| [6] | Momber A W .[J].Journal of Materials Processing Technology,1998,83:121-126. |
| [7] | Rajahram S S;Harvey T J;Wood R J K .[J].Tribology International,2011,44:232-240. |
| [8] | Lynn R S;Wong K K;Clark H M .[J].Wear,1991,149:55-71. |
| [9] | Finnie I .[J].Wear,1995,186-187:1-10. |
| [10] | 姜晓霞;李诗卓;李曙.金属的腐蚀磨损[M].北京:化学工业出版社,2003 |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%