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Effect of Segregation and Surface Condition on Corrosion of Rheo-HPDC Al–Si Alloys
University of Trento, Italy.
Jönköping University, School of Engineering, JTH. Research area Materials and manufacturing – Casting. Jönköping University, School of Engineering, JTH, Materials and Manufacturing.ORCID iD: 0000-0001-6755-2123
University of Trento, Italy.
Jönköping University, School of Engineering, JTH. Research area Materials and manufacturing – Casting. Jönköping University, School of Engineering, JTH, Materials and Manufacturing.ORCID iD: 0000-0002-0101-0062
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2018 (English)In: Metals, Vol. 8, no 4, article id 209Article in journal (Refereed) 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.

Place, publisher, year, edition, pages
2018. Vol. 8, no 4, article id 209
Keyword [en]
Al–Si alloys, rheocasting, HPDC, electrochemical evaluation
National Category
Corrosion Engineering
Identifiers
URN: urn:nbn:se:hj:diva-39065DOI: 10.3390/met8040209Local ID: JTHMaterialISOAI: oai:DiVA.org:hj-39065DiVA, id: diva2:1193878
Available from: 2018-03-28 Created: 2018-03-28 Last updated: 2018-03-28Bibliographically approved

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Payandeh, MostafaJarfors, Anders E.W.Zanella, Caterina

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Payandeh, MostafaJarfors, Anders E.W.Zanella, Caterina
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JTH. Research area Materials and manufacturing – CastingJTH, Materials and ManufacturingJTH. Research area Materials and manufacturing - Surface technology
Corrosion Engineering

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