|
|
CAUSES OF SUPERIOR CORROSION RESISTANCE OF Ni-Fe ELECTRODEPOSITS PRODUCED AT AMBIENT TEMPERATURE |
Huang Shukun; Zou Zhenhua; Kuang Shanlin; Xiao Juemin; Wu Lijun(Hunan University) |
|
|
Abstract Ni-Fe electrodeposits obtained at ambient temperature possess superior corrosion resistance. Its cause was experimentally investigated by means of electronmicroscopy and X-ray distraction analysis. The results showed that both low-iron (5~7Wt%) and high-iron (20~25wt%) alloy deposits were homogeneous nickel-base solid solutiolls. In these deposits lower internal stress, smaller grain size and (100) texture me those obtained in the Watts nickel electrodeposit were obserVed. Besides, a lamellar structure composed of iron-rich and iron-depleted zones alternately made up a galvanic corrosion system which may prevent the underneath steel substrate from corrosion.
|
Received: 25 February 1995
|
1邝少林,黄树坤,邹震华.中国技术成果大全,94-99,中国技术成果大全编辑部编,北京:科学技术文献出版社,1992.p392邝少林等.湖南大学学报,1987,14(2):13531975,11:16894AmblardJ,etal.J.AppLElectrochem,1979,9:23351981,17:7196HadleyJ,O'GradyJ.Thans.Inst.Met.Finish,1981,part37屠振密.电镀合金原理与工艺,北京:国防工业出版社,1993,p.92-93 |
No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
|
Shared |
|
|
|
|
|
Discussed |
|
|
|
|