Kesan suhu celupan ke atas mikrostruktur dan kekerasan salutan aluminium pada keluli karbon

Translated title of the contribution: Effect of dipping temperature on microstructure and hardness of coating aluminium on carbon steel

Emee Marina Salleh, Zaifol Samsu, Norinsan Kamil Othman, Azman Jalar @ Jalil

Research output: Contribution to journalArticle

Abstract

Carbon steel can easily be corroded in various environments, particularly in wet environment and at high temperature. Thus, the surface of the carbon steel must be protected by a material or metal that can form oxide surface and intermetallic layer that can preserve the carbon steel from aggresive corrosion attack. This study was performed to determine microstructure and hardness of aluminium (Al) coating that produced by hot dipping technique. The hot dipping coating using pure Al was conducted at different molten temperatures in order to attain an optimized coating layer. Two layers were formed on the surface of Al hot dipped carbon steel, the outer Al layer and the inner aluminide layer (Fe-Al). The inner aluminide layer consisted of two distinct layers which were thin FeAl3 at the outer layer and thicker Fe2Al5 on the inner layer. Microhardness of the aluminide layer values increased with increasing molten Al temperatures used and no apparent change of hardness of Al layer was obtained.

Original languageMalay
Pages (from-to)1251-1257
Number of pages7
JournalSains Malaysiana
Volume47
Issue number6
DOIs
Publication statusPublished - 1 Jun 2018

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Aluminum coatings
Carbon steel
Hardness
Aluminum
Microstructure
Temperature
Molten materials
Coatings
Microhardness
Intermetallics
Corrosion
Oxides
Metals

ASJC Scopus subject areas

  • General

Cite this

Kesan suhu celupan ke atas mikrostruktur dan kekerasan salutan aluminium pada keluli karbon. / Salleh, Emee Marina; Samsu, Zaifol; Othman, Norinsan Kamil; Jalar @ Jalil, Azman.

In: Sains Malaysiana, Vol. 47, No. 6, 01.06.2018, p. 1251-1257.

Research output: Contribution to journalArticle

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AB - Carbon steel can easily be corroded in various environments, particularly in wet environment and at high temperature. Thus, the surface of the carbon steel must be protected by a material or metal that can form oxide surface and intermetallic layer that can preserve the carbon steel from aggresive corrosion attack. This study was performed to determine microstructure and hardness of aluminium (Al) coating that produced by hot dipping technique. The hot dipping coating using pure Al was conducted at different molten temperatures in order to attain an optimized coating layer. Two layers were formed on the surface of Al hot dipped carbon steel, the outer Al layer and the inner aluminide layer (Fe-Al). The inner aluminide layer consisted of two distinct layers which were thin FeAl3 at the outer layer and thicker Fe2Al5 on the inner layer. Microhardness of the aluminide layer values increased with increasing molten Al temperatures used and no apparent change of hardness of Al layer was obtained.

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