Tribological Testing of Anti-Adhesive coatings for Cold Rolling Mill Rolls--Application to TiN-Coated Rolls

Journal Article · Wed May 04 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3589768· OSTI ID:21516744

Ould, Choumad; Montmitonnet, Pierre ^[1]; Gachon, Yves; Badiche, Xavier ^[2]

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1. Ecole des Mines de Paris-ParisTech, CEMEF, UMR CNRS 7635, BP 207-06904 Sophia-Antipolis-Cedex (France)
2. HEF R and D, Z.I. Sud, rue Benoit Fourneyron, 42166 Andrezieux-Boutheon-Cedex (France)

Roll life is a major issue in cold strip rolling. Roll wear may result either in too low roll roughness, bringing friction below the minimum requested for strip entrainment; or it may degrade strip surface quality. On the contrary, adhesive wear and transfer (''roll coating'', ''pick up'') may form a thick metallic deposits on the roll which increases friction excessively and degrades strip surface again [1]. The roll surface, with the help of a materials-adapted lubricant, must therefore possess anti-wear and anti-adhesive properties. Thus, High Speed Steeel (HSS) rolls show superior properties compared with standard Cr-steel rolls due to their high carbide surface coverage. Another way to improve wear and adhesion properties of surfaces is to apply hard metallic (hard-Cr) or ceramic coatings. Chromium is renowned for its excellent anti-wear and anti-adhesive properties and may serve as a reference. Here, as a first step towards alternative, optimised coatings, a PVD TiN coating has been deposited on tool steels, as previous attempts have proved TiN to be rather successful in cold rolling experiments [2,3]. Different tribological tests are reported here, giving insight in both anti-adhesive properties and fatigue life improvement.

• OSTI ID: 21516744
• Journal Information: AIP Conference Proceedings, Vol. 1353, Issue 1; Conference: ESAFORM 2011: 14. international ESAFORM conference on material forming, Belfast, Northern Ireland (United Kingdom), 27-29 Apr 2011; Other Information: DOI: 10.1063/1.3589768; (c) 2011 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ADHESION
ADHESIVES
CARBIDES
CERAMICS
CHROMIUM
DEPOSITS
FATIGUE
FRICTION
PHYSICAL VAPOR DEPOSITION
ROLLING
ROUGHNESS
STEELS
SURFACES
TESTING
TITANIUM NITRIDES
TOOLS
TRIBOLOGY
VAPOR DEPOSITED COATINGS
VELOCITY
ALLOYS
CARBON ADDITIONS
CARBON COMPOUNDS
COATINGS
DEPOSITION
ELEMENTS
EQUIPMENT
FABRICATION
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS WORKING
MECHANICAL PROPERTIES
METALS
NITRIDES
NITROGEN COMPOUNDS
PNICTIDES
SURFACE COATING
SURFACE PROPERTIES
TITANIUM COMPOUNDS
TRANSITION ELEMENT ALLOYS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS