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PVD coated mill rolls for cold rolling of stainless steel strips - Tribological and mechanical laboratory tests

Abstract : The cost of rolling is determined in particular by productivity and lifetime of rolls before regrinding. Adhesive wear of the sheet gives rise to transfer on the roll surface. Its occurrence depends on rolling conditions and is one of the determining factors of the maximal reduction for a given rolling speed. Abrasive wear of the roll is the second factor for roll lifetime. Both phenomena are strongly related to tribological and mechanical characteristics of the surface layer of rolls. Stainless steel is known for its high adhesiveness. Coatings with good tribological properties could help extend the roll service. In this paper, the potential of different PVD coatings (CrN, TiN and TiBN) is explored. The impact of these coatings on influential phenomena during rolling is analyzed thanks to well-adapted tribological and mechanical laboratory tests. The results show that TiN has a good potential in cold rolling of stainless steel strips.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00746438
Contributor : Magalie Prudon <>
Submitted on : Monday, October 29, 2012 - 9:11:04 AM
Last modification on : Thursday, September 24, 2020 - 5:22:54 PM

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Choumad Ould, Xavier Badiche, Pierre Montmitonnet, Yves Gachon. PVD coated mill rolls for cold rolling of stainless steel strips - Tribological and mechanical laboratory tests. Journal of Manufacturing Processes, Society of Manufacturing Engineers, 2013, 15 (1), pp.77-86. ⟨10.1016/j.jmapro.2012.09.011⟩. ⟨hal-00746438⟩

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