CobaltMaghrebV1, Main, Exploration, bibRecord, 000380

Contribution to the Study of the Relation between Microstructure and Electrochemical Behavior of Iron-Based FeCoC Ternary Alloys

Identifieur interne : 000380 ( Main/Exploration ); précédent : 000379; suivant : 000381

Contribution to the Study of the Relation between Microstructure and Electrochemical Behavior of Iron-Based FeCoC Ternary Alloys

Auteurs : Farida Benhalla-Haddad [Algérie] ; Sif Eddine Amara [Algérie] ; Abdelkader Benchettara [Algérie] ; Kamel Taibi [Algérie] ; Rafika Kesri [Algérie]

Source :

Journal of Analytical Methods in Chemistry [ 2090-8865 ] ; 2012.

RBID : PMC:3303192

Abstract

This work deals with the relation between microstructure and electrochemical behavior of four iron-based FeCoC ternary alloys. First, the arc-melted studied alloys were characterized using differential thermal analyses and scanning electron microscopy. The established solidification sequences of these alloys show the presence of two primary crystallization phases (δ(Fe) and graphite) as well as two univariante lines : peritectic L + δ(Fe)↔γ(Fe) and eutectic L↔γ(Fe) + C_graphite. The ternary alloys were thereafter studied in nondeaerated solution of 10⁻³ M NaHCO3 + 10⁻³ M Na₂SO₄, at 25°C, by means of the potentiodynamic technique. The results indicate that the corrosion resistance of the FeCoC alloys depends on the carbon amount and the morphology of the phases present in the studied alloys.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3303192

DOI: 10.1155/2012/798043
PubMed: 22448342
PubMed Central: 3303192

Affiliations:

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<front><div type="abstract" xml:lang="en"><p>This work deals with the relation between microstructure and electrochemical behavior of four iron-based FeCoC ternary alloys. First, the arc-melted studied alloys were characterized using differential thermal analyses and scanning electron microscopy. The established solidification sequences of these alloys show the presence of two primary crystallization phases (<italic>δ</italic>
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 M NaHCO3 + 10<sup>−3</sup>
 M Na<sub>2</sub>
SO<sub>4</sub>
, at 25°C, by means of the potentiodynamic technique. The results indicate that the corrosion resistance of the FeCoC alloys depends on the carbon amount and the morphology of the phases present in the studied alloys.</p>
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Serveur d'exploration sur le cobalt au Maghreb

Contribution to the Study of the Relation between Microstructure and Electrochemical Behavior of Iron-Based FeCoC Ternary Alloys

Contribution to the Study of the Relation between Microstructure and Electrochemical Behavior of Iron-Based FeCoC Ternary Alloys

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Abstract

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