Comparison of u and Mo in improving the corrosion resistance of AISI 430 stainless steel AND How uranium affects corrosion of resulfurized stainlesses AND Corrosion fatigue of structural metals in mine shaft waters

1968 ◽  
Author(s):  
G J Biefer ◽  
J G Garrison ◽  
W M Crawford
2009 ◽  
Vol 289-292 ◽  
pp. 501-508 ◽  
Author(s):  
C.M. Abreu ◽  
M.J. Cristóbal ◽  
P. Merino ◽  
G. Pena ◽  
M.C. Pérez

Research on the effect of ion implantation on the corrosion behaviour of metals has been carried out for years, but some difficulties arise in the comparison of the obtained results due to variations in experimental conditions (alloys, surface preparation, doses, experimental techniques...). This work tries to overcome those differences, presenting the effect of several elements (Ce+, N+, Cr+ and Cr+ N+) implanted in similar conditions on the pitting corrosion resistance of AISI 430 stainless steel. Potentiodynamic measurements in 1M NaCl demonstrate the beneficial effect of all the implanted elements, showing that Ce+ is the less efficient ion, while Cr+ N+ co-implantation gives the best results in terms of localized attack resistance. Pitting morphology is explained in terms of the XPS and GIXRD data that allow chemical and structural characterization of the implanted layer. Those results help to enlighten the protection mechanisms involved in the considered implantations.


RSC Advances ◽  
2016 ◽  
Vol 6 (37) ◽  
pp. 31367-31373 ◽  
Author(s):  
Jinlong Cui ◽  
Zhendong Yao ◽  
Fupeng Cheng ◽  
Yongfu Cui ◽  
Guanqin Wang ◽  
...  

A W-modified layer is prepared on 430 SS via plasma surface diffusion alloying to improve its corrosion resistance in marine PEMFCs.


2019 ◽  
Vol 61 (2) ◽  
pp. 173-178 ◽  
Author(s):  
Ali Kaya Gür ◽  
Tülay Yildiz ◽  
Nida Kati ◽  
Sinan Kaya

Author(s):  
Roberto Iquilio Abarzúa ◽  
Eliseo Hernández Duran ◽  
Tuan Nguyen-Minh ◽  
Leo A.I. Kestens ◽  
José Luis Valín Rivera ◽  
...  

2019 ◽  
Vol 66 (4) ◽  
pp. 520-526
Author(s):  
Fupeng Cheng ◽  
Jinglong Cui ◽  
Shuai Xu ◽  
Hongyu Wang ◽  
Pengchao Zhang ◽  
...  

Purpose The purpose of this paper is to improve the surface electrical conductivity and corrosion resistance of AISI 430 stainless steel (430 SS) as bipolar plates for proton exchange membrane fuel cells (PEMFCs), a protective Nb-modified layer is formed onto stainless steel via the plasma surface diffusion alloying method. The effect of diffusion alloying time on electrochemical behavior and surface conductivity is evaluated. Design/methodology/approach In this work, the surface electrical conductivity and corrosion resistance of modified specimen are evaluated by the potentiodynamic and potentionstatic polarization tests. Moreover, the hydrophobicity is also investigated by contact angle measurement. Findings The Nb-modified 430 SS treated by 1.5 h (1.5Nb) presented a lower passivation current density, lower interfacial contact resistance and a higher hydrophobicity than other modified specimens. Moreover, the 1.5 Nb specimen presents a smoother surface than other modified specimens after potentionstatic polarization tests. Originality/value The effect of diffusion alloying time on electrochemical behavior, surface conductivity and hydrophobicity of modified specimen is evaluated. The probable anti-corrosion mechanism of Nb-modified specimen in simulated acid PEMFC cathode environment is presented.


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