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Corrosion behavior of high-chromium Fe-based coatings produced by HVAF thermal spraying technique
Högskolan Väst, Institutionen för ingenjörsvetenskap, Avd för tillverkningsprocesser. (PTW)ORCID-id: 0000-0002-7663-9631
Högskolan Väst, Institutionen för ingenjörsvetenskap, Avd för tillverkningsprocesser. (PTW)ORCID-id: 0000-0002-9578-4076
Högskolan Väst, Institutionen för ingenjörsvetenskap, Avd för industriell produktion. (PTW)ORCID-id: 0000-0001-7787-5444
Höganäs AB, Höganäs.
2015 (engelsk)Konferansepaper, Poster (with or without abstract) (Fagfellevurdert)
Abstract [en]

Fe-based coatings with different Cr content were prepared by high-velocity air fuel (HVAF) spraying on the surface of both carbon steel and stainless steel 304L. The corrosion behavior of the coatings were evaluated using polarization and electrochemical impedance spectroscopy (EIS) techniques in 3.5 wt.% NaCl solution. Microstructure of the coatings were evaluated by X-ray diffraction (XRD), optical microscopy (OM), scanning election microscopy (SEM), and Energy-dispersive X-ray spectroscopy (EDS) before and after corrosion testing. The experimental results indicated that Cr strongly increased the corrosion resistance of the coating. Furthermore, having an elemental composition closer to that of the substrate, the coatings showed lower susceptibility to galvanic corrosion, accordingly lower corrosion rate.

sted, utgiver, år, opplag, sider
2015.
Emneord [en]
Corrosion, thermal spraying technique
HSV kategori
Forskningsprogram
Produktionsteknik; TEKNIK, Produktions- och materialteknik
Identifikatorer
URN: urn:nbn:se:hv:diva-8897OAI: oai:DiVA.org:hv-8897DiVA, id: diva2:894984
Konferanse
7th Rencontres Internationales sur la Projection Thermique. 9th to 11th December 2015 – Limoges, France
Tilgjengelig fra: 2016-01-18 Laget: 2016-01-18 Sist oppdatert: 2018-08-12bibliografisk kontrollert

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