Pitting Corrosion Behaviour of Type SUS904L and SUS316L Stainless Steels in Chloride Solutions

AbstractThe present work compares corrosion behaviour of four types of S30403, S31603, S32615 austenitic and S32404 austenitic-ferritic stainless steels in chloride solutions (1%, 3% NaCl) and in Ringer solution, at 37°C temperature. Corrosion resistance was determined by potentiodynamic polarization measurements and a thirty day immersion test conducted in Ringer solution. The immersion test was performed in term of biomedical application. These alloy were spontaneously passivated in all electrolytes, wherein S30403, S31603 and S32404 undergo pitting corrosion. Only S32615 containing 5.5% Si shows resistance to pitting corrosion.

Download Full-text

Influences of niobium and solution treatment temperature on pitting corrosion behaviour of stabilised austenitic stainless steels

Corrosion Science ◽

10.1016/j.corsci.2016.03.009 ◽

2016 ◽

Vol 108 ◽

pp. 111-124 ◽

Cited By ~ 33

Author(s):

Guanshun Bai ◽

Shanping Lu ◽

Dianzhong Li ◽

Yiyi Li

Keyword(s):

Pitting Corrosion ◽

Stainless Steels ◽

Corrosion Behaviour ◽

Solution Treatment ◽

Austenitic Stainless Steels ◽

Treatment Temperature ◽

Solution Treatment Temperature

Download Full-text

Potentiokinetic Criteria relevant to the pitting corrosion of stainless steels in chloride solutions

Materials and Corrosion ◽

10.1002/maco.19820330304 ◽

1982 ◽

Vol 33 (3) ◽

pp. 143-145 ◽

Cited By ~ 5

Author(s):

R. Štefec

Keyword(s):

Pitting Corrosion ◽

Stainless Steels ◽

Chloride Solutions

Download Full-text

Development of new approaches to the study of pitting corrosion resistance of stainless steels obtained by selective laser melting

E3S Web of Conferences ◽

10.1051/e3sconf/201912101011 ◽

2019 ◽

Vol 121 ◽

pp. 01011

Author(s):

Olga Parmenova ◽

Svetlana Mushnikova ◽

Vitaliy Bobyr ◽

Evgeniy Samodelkin

Keyword(s):

Corrosion Resistance ◽

Selective Laser Melting ◽

Pitting Corrosion ◽

Stainless Steels ◽

Laser Scanning ◽

Corrosion Behaviour ◽

Steel Corrosion ◽

Scanning Speed ◽

Laser Melting ◽

Initial State

This paper presents the results of comparative corrosion resistance studies of stainless steels manufactured by selective laser melting (SLM) in the initial state with subsequent heat treatment and machining. Pitting corrosion tests are carried out, according to ASTM G48 method A in 10% FeCl3·6H2O solution at elevated temperature and exposure time for 5h. The studies were performed on the AISI 321 and AISI 316L stainless steels manufactured by SLM. It was obtained that laser scanning speed decrease led to density rise by other SLM parameters being equal. Porosity affected to the stainless steel corrosion behaviour significant. Metal density decrease resulted to corrosion rate rise. Microstructure examination showed that pitting corrosion development depended on surface steel condition.

Download Full-text

Pitting corrosion behaviour of PM austenitic stainless steels sintered in nitrogen–hydrogen atmosphere

Corrosion Science ◽

10.1016/j.corsci.2006.10.009 ◽

2007 ◽

Vol 49 (4) ◽

pp. 1718-1736 ◽

Cited By ~ 43

Author(s):

C. García ◽

F. Martín ◽

P. de Tiedra ◽

L. García Cambronero

Keyword(s):

Pitting Corrosion ◽

Stainless Steels ◽

Corrosion Behaviour ◽

Austenitic Stainless Steels ◽

Hydrogen Atmosphere

Download Full-text

The Effect of Hydrogen on Pitting Corrosion of Superaustenitic and Austenitic-Ferritic Stainless Steels

Defect and Diffusion Forum ◽

10.4028/www.scientific.net/ddf.326-328.620 ◽

2012 ◽

Vol 326-328 ◽

pp. 620-625 ◽

Cited By ~ 2

Author(s):

Joanna Michalska

Keyword(s):

Corrosion Resistance ◽

Pitting Corrosion ◽

Stainless Steels ◽

Corrosion Current Density ◽

Corrosion Behaviour ◽

Corrosion Current ◽

Passive Films ◽

Cyclic Polarization ◽

Film Stability ◽

Ferritic Stainless Steels

Hydrogen entering into steel affects its electrochemical properties and may enhance the susceptibility to environmental degradation. The present work has been aimed at further clarifying the effect of hydrogenation on the corrosion behaviour and passivity of highly-alloyed stainless steels. The results were discussed by taking into account hydrogen charged samples and without hydrogen. The corrosion resistance to pitting was qualified with the cyclic polarization curves. The conclusion is that hydrogen may deteriorated the passive film stability and corrosion resistance to pitting of highly-alloyed stainless steel. Furthermore, the presence of hydrogen in passive films increases corrosion current density, decreasing the potential of the film breakdown and repassivation potential. It was also found that the degree of susceptibility to hydrogen-enhanced pitting corrosion was dependent on the type of steel.

Download Full-text