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1 Materials Science Poland

1 2010

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Structure and properties of iron aluminide layers fabricated by the chemical vapour deposition on 316L steel

Sitek R., Kamiński J., Sallot P., Kurzydłowski K. J.

Materials Science Poland

2010

Vol. 28, No. 1

163--172

The paper presents results of studies of structure and properties of the NiAl + FeAl type diffusion layers fabricated on 316L steel (00H17N14M2) by the chemical vapour deposition using aluminium chloride (AlCl3) in a hydrogen atmosphere as a carrier gas. The layers were examined using light and scanning electron microscopy. Chemical composition analyses were carried out by EDS and phase content was investigated by XRD. Corrosion resistance was tested using the potentiodynamic method in 0.5 M NaCl, and layer/structure adhesion was tested by the scratch test. The results obtained indicate that the 50 žm thick layers fabricated on the 316L steel substrate show very good adhesion combined with very good corrosion resistance.