Localized Corrosion of 304 Stainless Steel under a NaCl Droplet

2011 ◽  
Vol 480-481 ◽  
pp. 443-447
Author(s):  
Yan Hua Wang ◽  
Yuan Yuan Liu
Keyword(s):  
Stainless Steel ◽  
Corrosion Rate ◽  
Corrosion Potential ◽  
Corrosion Process ◽  
Localized Corrosion ◽  
304 Stainless Steel ◽  
Galvanic Current ◽  
Cooperative Effects ◽  
Electrochemical Parameters ◽  
Wire Beam Electrode

The distributions of corrosion potential and galvanic current of 304 stainless steel under a NaCl droplet were studied by using the wire beam electrode (WBE). It was found that the distributions of the electrochemical parameters were heterogeneous with isolated anodic and cathodic zones appeared randomly. During the corrosion process, the polarity of some anodes changed with the evolution of time. The localized corrosion rate and heterogeneity increased firstly, and then decreased afterward with the increase of time, which can be attributed to the cooperative effects of the aggressive ions and the corrosion products.

Study of localized corrosion of 304 stainless steel under chloride solution droplets using the wire beam electrode

2011 ◽  
Vol 53 (9) ◽  
pp. 2963-2968 ◽  
Author(s):  
Yanhua Wang ◽  
Wei Wang ◽  
Yuanyuan Liu ◽  
Lian Zhong ◽  
Jia Wang
Keyword(s):  
Stainless Steel ◽  
Chloride Solution ◽  
Localized Corrosion ◽  
304 Stainless Steel ◽  
The Wire ◽  
Wire Beam Electrode

scholarly journals Nitriding of 304 Steel by a Nitrogen Plasma: Increasing Corrosion Resistance

1999 ◽  
Vol 23 (1) ◽  
pp. 38-39
Author(s):  
N. Bellakhal ◽  
K. Draou ◽  
J. L. Brisset
Keyword(s):  
Aqueous Solution ◽  
Stainless Steel ◽  
Corrosion Potential ◽  
Steel Sample ◽  
Nitrogen Plasma ◽  
304 Stainless Steel ◽  
Stainless Steel Sample ◽  
Protective Properties ◽  
Inductively Coupled ◽  
Working Parameters

Exposure of a 304 stainless steel sample to an inductively coupled low pressure radio frequency (RF) nitrogen plasma leads to the formation of a nitriding layer. The protective properties of this layer are investigated by electrochemical methods. The corrosion potential of the steel in an aqueous solution depends on the working parameters of the plasma such as the time exposure and the distance between the steel sample and the high voltage (HV) coil of the treatment reactor.

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