Interface adhesion during sliding wear in cast iron after hot deformation

Zhang, Q; Jiang, ZY; Wei, DB; Zhu, HT; Chen, ZX; Han, JT; Xie, GL

Interface adhesion during sliding wear in cast iron after hot deformation

Zhang, Q Jiang, ZY Wei, DB

Zhu, HT Chen, ZX Han, JT Xie, GL

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Publication Type:: Journal Article
Citation:: Wear, 2013, 301 (1-2), pp. 598 - 607
Issue Date:: 2013-04-01

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Field	Value	Language
dc.contributor.author	Zhang, Q	en_US
dc.contributor.author	Jiang, ZY	en_US
dc.contributor.author	Wei, DB https://orcid.org/0000-0002-4247-8905	en_US
dc.contributor.author	Zhu, HT	en_US
dc.contributor.author	Chen, ZX	en_US
dc.contributor.author	Han, JT	en_US
dc.contributor.author	Xie, GL	en_US
dc.date.issued	2013-04-01	en_US
dc.identifier.citation	Wear, 2013, 301 (1-2), pp. 598 - 607	en_US
dc.identifier.issn	0043-1648	en_US
dc.identifier.uri	http://hdl.handle.net/10453/28717
dc.description.abstract	Interface adhesion between cast iron substrate and oxide layer formed during dry unidirectional sliding wear was studied by using thermo-mechanically processed 4.8Ni-1.5Cr cast iron. The purpose of the present work is to reveal the difference of the adhesion behaviour between martensitic matrix with a higher hardness and austenitic matrix with low hardness. The 4.8Ni-1.5Cr alloy was sandwiched as a middle layer with low carbon steel as outer layers and thermo-mechanically processed via (1) hot rolling (HR), (2) hot rolling and heat treatment (HT), and (3) hot rolling, heat treatment and hot compression (HC), respectively. The applied normal loads were 20 and 40. N, and the sliding speeds were 45 and 78. mm/s in sliding wear test. The durations of the wear test were 2 and 7. min, respectively for different testing rounds. It was found that the wear after running-in was always mild under the conditions of 20. N and 45. mm/s or 20. N and 78. mm/s for all the tested samples. Prior to the transition into mild oxidational wear, negative displacements of pins were observed for HT and HC samples when the applied load was raised to 40. N at the sliding speed of 78. mm/s. No similar response was observed for HR sample under the same testing condition. The possible mechanisms for the negative displacement of pin in the test are discussed in terms of the microstructure and phases of the testing samples. The effect of the hardness of the substrate on the growth and integrity of the oxide film formed during the sliding and the interface adhesion between the oxide film and substrate are also discussed. © 2012 Elsevier B.V.	en_US
dc.relation.ispartof	Wear	en_US
dc.relation.isbasedon	10.1016/j.wear.2012.11.027	en_US
dc.subject.classification	Mechanical Engineering & Transports	en_US
dc.title	Interface adhesion during sliding wear in cast iron after hot deformation	en_US
dc.type	Journal Article
utslib.citation.volume	1-2	en_US
utslib.citation.volume	301	en_US
utslib.for	0913 Mechanical Engineering	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	0910 Manufacturing Engineering	en_US
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	1-2	en_US
pubs.publication-status	Published	en_US
pubs.volume	301	en_US

Abstract:

Interface adhesion between cast iron substrate and oxide layer formed during dry unidirectional sliding wear was studied by using thermo-mechanically processed 4.8Ni-1.5Cr cast iron. The purpose of the present work is to reveal the difference of the adhesion behaviour between martensitic matrix with a higher hardness and austenitic matrix with low hardness. The 4.8Ni-1.5Cr alloy was sandwiched as a middle layer with low carbon steel as outer layers and thermo-mechanically processed via (1) hot rolling (HR), (2) hot rolling and heat treatment (HT), and (3) hot rolling, heat treatment and hot compression (HC), respectively. The applied normal loads were 20 and 40. N, and the sliding speeds were 45 and 78. mm/s in sliding wear test. The durations of the wear test were 2 and 7. min, respectively for different testing rounds. It was found that the wear after running-in was always mild under the conditions of 20. N and 45. mm/s or 20. N and 78. mm/s for all the tested samples. Prior to the transition into mild oxidational wear, negative displacements of pins were observed for HT and HC samples when the applied load was raised to 40. N at the sliding speed of 78. mm/s. No similar response was observed for HR sample under the same testing condition. The possible mechanisms for the negative displacement of pin in the test are discussed in terms of the microstructure and phases of the testing samples. The effect of the hardness of the substrate on the growth and integrity of the oxide film formed during the sliding and the interface adhesion between the oxide film and substrate are also discussed. © 2012 Elsevier B.V.

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