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Show simple item record Myburg, G en_US Varga, K en_US Barnard, WO en_US Baradlai, P en_US Tomcsanyi, L en_US Potgieter, JH en_US Louw, CW en_US Van Staden, MJ en_US 2007-02-08T06:36:21Z en_US 2007-06-07T10:06:17Z 2007-02-08T06:36:21Z en_US 2007-06-07T10:06:17Z en_US 1998-10 en_US
dc.identifier.citation Myburg, G, et al. 1998. Surface composition of Ru containing duplex stainless steel after passivation in non-oxidizing media. Applied surface science, vol 136, 2 January, pp 29-35 en_US
dc.identifier.issn 0169-4332 en_US
dc.identifier.uri en_US
dc.description.abstract In this paper, results obtained by surface analysis Auger Electron Spectroscopy (AES) and X-ray Photoelectron Spectroscopy (XPS) studies performed on the passive layers that formed spontaneously on duplex stainless steels (DSSs) and Ru containing (0.3%) duplex stainless steel(DSS:Ru) in HCl and H2SO4solutions are presented in order to explain the roles of the different alloying elements in the passivation process. From the AES studies, it followed that the Cr concentrations were slightly higher (about 3%)in the passive layers of both materials, compared to their bulk concentrations, whereas the Ni concentrations were reduced to less than half their bulk concentrations at the outer surfaces of the passive layers, with an increasing concentration gradient towards the bulk of the material. Enrichment of Mo at outer surface of the passive layer was only observed in the case of the (DSS:Ru) samples which were passivated in HCl. The XPS results indicated that the passive layer on the DSS:Ru samples contained more Cr2O3 and Fe2+ than Cr(OH)(3) and Fe3+, respectively, in the passive layer, compared to the DSS samples without Ru. en_US
dc.format.extent 240500 bytes en_US
dc.format.mimetype application/pdf en_US
dc.language.iso en en_US
dc.publisher Elsevier Science BV en_US
dc.rights Copyright: 1998 Elsevier Science BV en_US
dc.source en_US
dc.subject Corrosion en_US
dc.subject Stainless steels en_US
dc.subject Rutheniums en_US
dc.subject Surface passivations en_US
dc.title Surface composition of Ru containing duplex stainless steel after passivation in non-oxidizing media en_US
dc.type Article en_US

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