Experimental study on wear and friction of work roll material with 4% Cr and added Ti in cold rolling

Li, HC; Jiang, ZY; Tieu, AK; Sun, WH; Wei, DB

Experimental study on wear and friction of work roll material with 4% Cr and added Ti in cold rolling

Li, HC Jiang, ZY Tieu, AK Sun, WH Wei, DB

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Publication Type:: Conference Proceeding
Citation:: Wear, 2011, 271 (9-10), pp. 2500 - 2511
Issue Date:: 2011-07-29

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Field	Value	Language
dc.contributor.author	Li, HC	en_US
dc.contributor.author	Jiang, ZY	en_US
dc.contributor.author	Tieu, AK	en_US
dc.contributor.author	Sun, WH	en_US
dc.contributor.author	Wei, DB https://orcid.org/0000-0002-4247-8905	en_US
dc.date.issued	2011-07-29	en_US
dc.identifier.citation	Wear, 2011, 271 (9-10), pp. 2500 - 2511	en_US
dc.identifier.issn	0043-1648	en_US
dc.identifier.uri	http://hdl.handle.net/10453/32075
dc.description.abstract	Cold rolling is one of the most essential elements in the manufacture of flat products of metals. Work roll wear is always a topic of interest to many researchers. In this paper, the disc-to-disc tests of the material with 4% Cr and that with 4% Cr+Ti were carried out respectively under the conditions of dry contact and emulsion lubricant of 3.9% Quakerol N680-2-DPD. The wear and friction patterns were discussed by correlating the disc surface morphologies and the microstructures of both materials. The surface roughness of the disk of the material with 4% Cr+Ti deteriorates much slower than that with 4% Cr under the condition of lubrication. The material with 4% Cr+Ti is characterised as carbonitrades precipitated in a fine tempered martensite matrix while coarse carbides (M7C3) exist in the material with 4% Cr. The disk of the material with 4% Cr+Ti wears differently to that with 4% Cr. Delamination may become an important wear mechanism earlier in the case of 4% Cr than that of 4% Cr+Ti. Micro spalling and pitting occur after 120min of wear in the case of 4% Cr, but not in the case of 4% Cr+Ti until 330min. Detached carbides are responsible for the abrasive wear on both discs at the late stage. Ti alters the friction pattern due to surface regeneration that resulted from the abrasive effect of carbonitrades. Generally, the wear-resistance of roll material may be improved by 175% by introducing added Ti. The outcome is beneficial for developing new materials for prolonging the service life of the cold work roll. © 2011 Elsevier B.V.	en_US
dc.relation.ispartof	Wear	en_US
dc.relation.isbasedon	10.1016/j.wear.2010.11.053	en_US
dc.subject.classification	Mechanical Engineering & Transports	en_US
dc.title	Experimental study on wear and friction of work roll material with 4% Cr and added Ti in cold rolling	en_US
dc.type	Conference Proceeding
utslib.citation.volume	9-10	en_US
utslib.citation.volume	271	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	0910 Manufacturing Engineering	en_US
utslib.for	0913 Mechanical Engineering	en_US
dc.location.activity	Philadelphia, PA
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	closed_access
pubs.issue	9-10	en_US
pubs.publication-status	Published	en_US
pubs.volume	271	en_US

Abstract:

Cold rolling is one of the most essential elements in the manufacture of flat products of metals. Work roll wear is always a topic of interest to many researchers. In this paper, the disc-to-disc tests of the material with 4% Cr and that with 4% Cr+Ti were carried out respectively under the conditions of dry contact and emulsion lubricant of 3.9% Quakerol N680-2-DPD. The wear and friction patterns were discussed by correlating the disc surface morphologies and the microstructures of both materials. The surface roughness of the disk of the material with 4% Cr+Ti deteriorates much slower than that with 4% Cr under the condition of lubrication. The material with 4% Cr+Ti is characterised as carbonitrades precipitated in a fine tempered martensite matrix while coarse carbides (M7C3) exist in the material with 4% Cr. The disk of the material with 4% Cr+Ti wears differently to that with 4% Cr. Delamination may become an important wear mechanism earlier in the case of 4% Cr than that of 4% Cr+Ti. Micro spalling and pitting occur after 120min of wear in the case of 4% Cr, but not in the case of 4% Cr+Ti until 330min. Detached carbides are responsible for the abrasive wear on both discs at the late stage. Ti alters the friction pattern due to surface regeneration that resulted from the abrasive effect of carbonitrades. Generally, the wear-resistance of roll material may be improved by 175% by introducing added Ti. The outcome is beneficial for developing new materials for prolonging the service life of the cold work roll. © 2011 Elsevier B.V.

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http://hdl.handle.net/10453/32075