Properties and Growth Rate of Intermetallic Al-Fe through Hot Dipped Aluminizing

Abstract:

Hot dipped aluminizing is the one of the most famous and effective method of the surface protection. The growth behavior in the intermetallic layer by introducing a different dipping time and various of molten aluminium temperature had been detail investigated. The result showed that the top portion of the coated steel substrate is compose of a thin layer of α-Al₂O₃, followed by thicker Aluminium pure layer, thinner layer of FeAl₃ , and then a much thicker of Fe₂Al_{5 .} The inter-metallic layer is ‘thick’ and exhibits a finger-like growth into the steel. The thickness of Al-Fe intermetallic layer on the steel base is increased with the increasing of hot dipping temperature and time. The micro hardness testing result shown that increasing of the aluminizing temperature was increased the hardness of the intermetallic layer.

• Periodical: Advanced Materials Research (Volume 980)
• Pages: 3-7
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.980.3
• Online since: June 2014
• Authors: Zaifol Samsu*, Norinsan Kamil Othman, Abd Razak Daud, Muhammad Daud
• Keywords: Finger-Like, Hardness, Hot Dipped Aluminizing

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