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Effect of Segregation and Surface Condition on Corrosion of Rheo-HPDC Al–Si Alloys
University of Trento, Italy.
Högskolan i Jönköping, Tekniska Högskolan, JTH, Material och tillverkning.ORCID-id: 0000-0001-6755-2123
University of Trento, Italy.
Högskolan i Jönköping, Tekniska Högskolan, JTH, Material och tillverkning.ORCID-id: 0000-0002-0101-0062
Vise andre og tillknytning
2018 (engelsk)Inngår i: Metals, Vol. 8, nr 4, artikkel-id 209Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Corrosion properties of two Al–Si alloys processed by Rheo-high pressure die cast (HPDC) method were examined using polarization and electrochemical impedance spectroscopy (EIS) techniques on as-cast and ground surfaces. The effects of the silicon content, transverse and longitudinal macrosegregation on the corrosion resistance of the alloys were determined. Microstructural studies revealed that samples from different positions contain different fractions of solid and liquid parts of the initial slurry. Electrochemical behavior of as-cast, ground surface, and bulk material was shown to be different due to the presence of a segregated skin layer and surface quality.

sted, utgiver, år, opplag, sider
MDPI , 2018. Vol. 8, nr 4, artikkel-id 209
Emneord [en]
Al–Si alloys, rheocasting, HPDC, electrochemical evaluation
HSV kategori
Identifikatorer
URN: urn:nbn:se:hj:diva-39065DOI: 10.3390/met8040209ISI: 000434882800012Scopus ID: 2-s2.0-85044734700Lokal ID: JTHMaterialISOAI: oai:DiVA.org:hj-39065DiVA, id: diva2:1193878
Forskningsfinansiär
Knowledge Foundation, 20100280Tilgjengelig fra: 2018-03-28 Laget: 2018-03-28 Sist oppdatert: 2018-09-19bibliografisk kontrollert

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