TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Gümpel, Paul A1 - Hörtnagl, Arnulf T1 - Influence of the surface condition on corrosion behavior of stainless steel JF - Materials and Corrosion JF - Werkstoffe und Korrosion N2 - The corrosion resistance of stainless steels is massively influenced by the condition of their surface. The surface quality includes the topography of the surface, the structure and composition of the passive layer, and the surface near structure of the base material. These factors are influenced by final physical/chemical surface treatments. The presented work shows significantly lower corrosion resistance for mechanical machined specimens than for etched specimens. It also turns out that the rougher the surface, the lower the corrosion resistance gets. However, there is no general finding which shows if blasted or grinded surfaces are more appropriate, but a dependency on process parameters and the characteristics on corrosive exposure in terms of corrosion behavior. The results show that not only the surface roughness Ra has an influence on corrosion behavior but also the shape of peaks and valleys which are evolved by surface treatments. Imperfections in the base material, like sulfidic inclusions lead to a weaker passive layer, respectively, to a decrease of the corrosion resistance. By using special passivating techniques the corrosion resistance of stainless steels can be increased to a higher level in comparison to common passivation. Y1 - 2016 SN - 0947-5117 SS - 0947-5117 SN - 1521-4176 SS - 1521-4176 U6 - https://doi.org/10.1002/maco.201608893 DO - https://doi.org/10.1002/maco.201608893 N1 - Volltextzugriff für Angehörige der Hochschule Konstanz möglich. VL - 67 IS - 6 SP - 607 EP - 620 ER -