Article: Characterisation of oxidation and wear oxidised surfaces of H13 steel/brass in dry sliding conditions Journal: International Journal of Microstructure and Materials Properties (IJMMP) 2013 Vol.8 No.4/5 pp.373 - 384 Abstract: Although oxide scale has significant influence on surface quality of hot-worked products, deformation of the scale during hot working has not been understood sufficiently. The authors propose an experimental study to analyse the oxidation and the tribological behaviour of a ferrous alloy (X40CrMoV5-1, H13 steel) and non ferrous alloy (CuZn39Pb3, brass alloys) in dry sliding conditions. The tribological behaviour of the pair of materials is carried out on a pin-on disk wear tester after oxidation at 600°C for 70 h. It was found that: i) a loose oxide film wholly covered the surface of the steel; ii) Fe2O3 as the main oxide was identified except for a small amount of Fe3O4; iii) during friction, a compacted oxide film was established on the worn surface of the steel. The analysis of the worn surface showed two regions: a delamination region due to the delamination of tribo-oxide during wear and an undelamination region characterised by the dominance of Fe3O4 tribo-oxides on the worn surface. Inderscience Publishers - linking academia, business and industry through research

Title: Characterisation of oxidation and wear oxidised surfaces of H13 steel/brass in dry sliding conditions

Authors: Mohamed Kchaou; Amel Alimi; Riadh Elleuch; Yannick Desplanques

Addresses: Université de Sfax, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Laboratoire des Systèmes Electromécaniques (LASEM), BP 3038 Sfax, Tunisia ' Université de Sfax, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Laboratoire des Systèmes Electromécaniques (LASEM), BP 3038 Sfax, Tunisia ' Université de Sfax, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Laboratoire des Systèmes Electromécaniques (LASEM), BP 3038 Sfax, Tunisia ' Univ Lille Nord de France, F-59000 Lille, France; ECLille, LML, F-59650 Villeneuve d'Ascq, France; CNRS, UMR 8107, F-59650 Villeneuve d'Ascq, France

Abstract: Although oxide scale has significant influence on surface quality of hot-worked products, deformation of the scale during hot working has not been understood sufficiently. The authors propose an experimental study to analyse the oxidation and the tribological behaviour of a ferrous alloy (X40CrMoV5-1, H13 steel) and non ferrous alloy (CuZn39Pb3, brass alloys) in dry sliding conditions. The tribological behaviour of the pair of materials is carried out on a pin-on disk wear tester after oxidation at 600°C for 70 h. It was found that: i) a loose oxide film wholly covered the surface of the steel; ii) Fe₂O₃ as the main oxide was identified except for a small amount of Fe₃O₄; iii) during friction, a compacted oxide film was established on the worn surface of the steel. The analysis of the worn surface showed two regions: a delamination region due to the delamination of tribo-oxide during wear and an undelamination region characterised by the dominance of Fe₃O₄ tribo-oxides on the worn surface.

Keywords: brass alloys; H13 steel; oxidation; rubbed surfaces; wear transition; materials properties; dry sliding; surface quality; hot working; deformation; tribological behaviour; tribology; delamination region; undelamination region.

DOI: 10.1504/IJMMP.2013.057073

International Journal of Microstructure and Materials Properties, 2013 Vol.8 No.4/5, pp.373 - 384

Published online: 07 Oct 2013 *

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Title: Characterisation of oxidation and wear oxidised surfaces of H13 steel/brass in dry sliding conditions

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