Pitting Corrosion of AISI 304 and 316 Austenitic Stainless Steels Covered with Anodic Oxide Films

CORROSION ◽  
1988 ◽  
Vol 44 (1) ◽  
pp. 29-35 ◽  
Author(s):  
R. Nishimura ◽  
K. Kudo
Keyword(s):  
Pitting Corrosion ◽  
Stainless Steels ◽  
Oxide Films ◽  
Austenitic Stainless Steels ◽  
Anodic Oxide ◽  
Aisi 304 ◽  
Anodic Oxide Films

scholarly journals Enhancement of Corrosion Properties of Fe-18Cr-9Mn-5.5Ni-0.3(C + N) Austenitic Stainless Steels by Carbon Alloying

Metals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1124
Author(s):  
Daun Byeon ◽  
Heon-Young Ha ◽  
Sung-Dae Kim ◽  
Hyo-Haeng Jo ◽  
JinJong Lee ◽  
...  
Keyword(s):  
Passive Film ◽  
Pitting Corrosion ◽  
Stainless Steels ◽  
Austenitic Stainless Steels ◽  
Partial Substitution ◽  
Corrosion Properties ◽  
Resistance Level ◽  
Aisi 304 ◽  
Pitting Corrosion Resistance ◽  
C And N

In this study, the resistance to pitting corrosion of Fe-18Cr-9Mn-5.5Ni-0.3(C + N) austenitic stainless steel γ-SSs (in wt%) with different C/(C + N) ratios (0.02, 0.29, and 0.60) was evaluated. It was found to be difficult to form a γ-matrix without precipitation, because the Cr23C6 precipitation rate in the γ-SSs with the C/(C + N) value of 0.60 was too fast. Thus, it was recommended to maintain the C/(C + N) ratio below 0.6 in Fe-18Cr-9Mn-5.5Ni-0.3(C + N) γ-SSs. As a result of the potentiodynamic polarization tests, the γ-SS with a C/(C + N) ratio of 0.29 showed the highest resistance to pitting corrosion, and the resistance level of this alloy was superior to that of the AISI 304 γ-SS. Analysis of the passive film and matrix dissolution rates revealed that a higher C/(C + N) ratio of γ-SS increased the protective ability of the passive film and decreased the growth rate of the pits. Therefore, it could be concluded that partial substitution of C for N was advantageous for improving the pitting corrosion resistance of Fe-18Cr-9Mn-5.5Ni-0.3(C + N) γ-SSs, as long as C and N existed in a solid solution state.

Crystallization in anodic oxide films

1988 ◽  
Vol 28 (1) ◽  
pp. 43-56 ◽  
Author(s):  
J.S.L. Leach ◽  
B.R. Pearson
Keyword(s):  
Oxide Films ◽  
Anodic Oxide ◽  
Anodic Oxide Films

Study of anodic oxide films formed on solid-state sintered SiC-ceramic at high anodic potentials

2021 ◽  
Author(s):  
M. Schneider ◽  
L. Šimůnková ◽  
A. Michaelis ◽  
M. Noeske ◽  
J. Aniol ◽  
...  
Keyword(s):  
Solid State ◽  
Oxide Films ◽  
Anodic Oxide ◽  
Anodic Oxide Films ◽  
Sic Ceramic
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