Metallurgical, Mechanical and Electrochemical Behavior Study of the Lamellar Gray Cast Iron Treated with Vanadium

• Authors: M. Azzoug , N. Boutarek , R. Drıf , N. Madaouı , K. Boulgheb
• Languages of publication: EN

Abstracts

EN

This study is concerned with the research and development in the field of materials science, leading to the industrial applications especially for the development of materials by moulding process. The purpose of this study was to determine the influence of vanadium on microstructural, mechanical and electrochemical properties of gray cast iron with lamellar graphite EN-FGL250. We investigated the effect of adding element (vanadium), during the casting of the metal in the mould, in a powder form having a particle size of 0.5 mm with the amounts of 1%, 3% and 5% in weight percent on microstructural and mechanical properties of gray cast iron with lamellar graphite. The originality of this work is the addition of the vanadium powder during the last stage of cooling of the melted gray cast iron EN-FGL250. These additions have a significant impact on the solidification phenomenon since the deposited vanadium powder into the sand moulds creates the new sites of nucleation and absorbs a lot of heat leading to the fast cooling. From the experimental results, we can confirm that the cooling rate directly affects the microstructural, mechanical and electrochemical behavior of the cast gray iron treated with vanadium. As result, it was observed that there is a slight decrease of the elasticity modulus of the work pieces, and a reduction of the maximum tensile resistance R_{m}. Finally, the addition of vanadium considerably reduces the corrosion current of gray cast iron treated with vanadium.

Keywords

EN

68.35.bd; 81.05.uf; 37.10.-x; 81.40.Cd; 64.75.Nx; 82.45.Bb

Discipline

• 37.10.-x: Atom, molecule, and ion cooling methods(see also 87.80.Cc Optical trapping in biophysical techniques)
• 82.45.Bb: Corrosion and passivation(see also 81.65.Kn Corrosion protection and 81.65.Rv Passivation in surface treatments)
• 68.35.bd: Metals and alloys
• 81.40.Cd: Solid solution hardening, precipitation hardening, and dispersion hardening; aging(see also 64.75.Nx Phase separation and segregation in solid solutions)
• 81.05.uf: Graphite
• 64.75.Nx: Phase separation and segregation in solid solutions

• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 129
• Issue: 4
• Pages: 548-551

Dates

published

2016-04

Contributors

author

M. Azzoug

• Materials Technology Laboratory, Faculty of Mechanical and Process Engineering, University of Science and Technology Houari Boumediene, Algeria

author

N. Boutarek

• Materials Technology Laboratory, Faculty of Mechanical and Process Engineering, University of Science and Technology Houari Boumediene, Algeria

author

R. Drıf

• Materials Technology Laboratory, Faculty of Mechanical and Process Engineering, University of Science and Technology Houari Boumediene, Algeria

author

N. Madaouı

• Ionized Media Laboratory, Research Centre for Applied Technologies, Baba Hassen, Algeria

author

K. Boulgheb

• Materials Technology Laboratory, Faculty of Mechanical and Process Engineering, University of Science and Technology Houari Boumediene, Algeria

References

• [1] Norm NF A 32-101, Pieces molded unalloyed gray iron, Bureau of Normalization Foundry Industries, 1965
• [2] H. Laplanche, Cast Irons and Their Heat Treatments, Vol. 1, Hardcover, France 1975 (in French)
• [3] J.-C. Margerie, Techn. Ing. M380, 7 (2008) (in French)
• [4] H. Le Breton, Practical Handbook of Cast Iron Foundry, Dunod, Paris 1966 (in French)
• [5] J. Barralis, G. Mader, Specific of Metallurgy. Preparation, Properties, Normalization, Afnor, Paris 1997 (in French)
• [6] A. Roos, B. Millet, Specific of Applied Metallurgy, 3rd ed., Lavoisier, Paris 1982 (in French)
• [7] J.C. Margerie, Techn. Ing. M770, 8 (2008) (in French)
• [8] M. Durand-Charre, Microstructure of Steels and Cast Irons. Genesis and Interpretation, SIRPE, Paris 2003 (in French)

Identifiers

DOI

10.12693/APhysPolA.129.548