Structure-property correlation in aluminized coatings

Bahadur, Aruna and Mohanty, O N (1994) Structure-property correlation in aluminized coatings. NML Technical Journal, 36 (1). pp. 31-38.

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Mild Steel, on hot dip aluminizing, develops a coating which reveals a soft, outer Al layer followed by a soft (Fe3Al) and then hard intermetallic (FeAl3, Fe2Al5) bearing) layers. In order to improve wear resistance and thermal stability of coatings, diffusion annealing was done at 773-923 K, resulting in a phase transformation on the surface i.e. Al ®FeAl3 ® FeAl3 + Fe2Al5 ® Fe2Al5. These phases, though not favourable from the point of view of Pilling-Bedworth's condition, nevertheless, give adherent and bendable-coated surfaces, which are not susceptible to thermal shock.

Item Type:Article
Official URL/DOI:
Uncontrolled Keywords:Hot dip aluminizing; Pilling-Bedworth's condition; Bendable-coated surfaces; Intermetallic layers-FeAl3, Fe2Al5
Divisions:Material Science and Technology
ID Code:1564
Deposited By:Sahu A K
Deposited On:13 Sep 2010 12:33
Last Modified:27 Mar 2012 11:54
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