Impact-Sliding of Sintered Steel: Effect of Lubrication

Sintered steel is used as a material for valve seat insert in automotive engines. During operation, a dynamic contact occurs between the valve and its seat. To investigate the wear behavior of sintered steel for this application, we have developed an impact-sliding tester using a ball on flat config...

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Autores principales:	Maha Messaadi, Gaetan Bouvard, Philippe Kapsa
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2013
Materias:	impact-sliding impact angle valve/seat contact sintered steel boundary lubrication wear Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/508e7b7d13c2464caaa4975141e66090
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spelling	oai:doaj.org-article:508e7b7d13c2464caaa4975141e660902021-11-05T09:24:16ZImpact-Sliding of Sintered Steel: Effect of Lubrication1881-219810.2474/trol.8.203https://doaj.org/article/508e7b7d13c2464caaa4975141e660902013-05-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/8/3/8_203/_pdf/-char/enhttps://doaj.org/toc/1881-2198Sintered steel is used as a material for valve seat insert in automotive engines. During operation, a dynamic contact occurs between the valve and its seat. To investigate the wear behavior of sintered steel for this application, we have developed an impact-sliding tester using a ball on flat configuration. Impact-sliding experiments have been conducted at different impact angles (30°, 45°, 60°) with and without lubrication to investigate the surface damage of the sintered steel under this contact loading and to understand the effect of lubrication. Our results have shown an important variation of the wear rate in relation to impact-sliding angle. In dry condition, a low wear regime is observed for low angles; whereas maximum wear is observed at 60° angle for lubricated contacts. The wear scar in the dry contact is deeper than in the lubricated one. The damaged surface of sintered steel is examined by a Scanning Electron Microscopy (SEM). In dry conditions, the contact area wears out quickly due to an adhesive-abrasive process. Under lubricated conditions, a fatigue crack opening is associated to a lower wear rate. The lubricated impact-sliding condition modifies the main surface damage phenomena.Maha MessaadiGaetan BouvardPhilippe KapsaJapanese Society of Tribologistsarticleimpact-slidingimpact anglevalve/seat contactsintered steelboundary lubricationwearPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 8, Iss 3, Pp 203-209 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	impact-sliding impact angle valve/seat contact sintered steel boundary lubrication wear Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	impact-sliding impact angle valve/seat contact sintered steel boundary lubrication wear Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Maha Messaadi Gaetan Bouvard Philippe Kapsa Impact-Sliding of Sintered Steel: Effect of Lubrication
description	Sintered steel is used as a material for valve seat insert in automotive engines. During operation, a dynamic contact occurs between the valve and its seat. To investigate the wear behavior of sintered steel for this application, we have developed an impact-sliding tester using a ball on flat configuration. Impact-sliding experiments have been conducted at different impact angles (30°, 45°, 60°) with and without lubrication to investigate the surface damage of the sintered steel under this contact loading and to understand the effect of lubrication. Our results have shown an important variation of the wear rate in relation to impact-sliding angle. In dry condition, a low wear regime is observed for low angles; whereas maximum wear is observed at 60° angle for lubricated contacts. The wear scar in the dry contact is deeper than in the lubricated one. The damaged surface of sintered steel is examined by a Scanning Electron Microscopy (SEM). In dry conditions, the contact area wears out quickly due to an adhesive-abrasive process. Under lubricated conditions, a fatigue crack opening is associated to a lower wear rate. The lubricated impact-sliding condition modifies the main surface damage phenomena.
format	article
author	Maha Messaadi Gaetan Bouvard Philippe Kapsa
author_facet	Maha Messaadi Gaetan Bouvard Philippe Kapsa
author_sort	Maha Messaadi
title	Impact-Sliding of Sintered Steel: Effect of Lubrication
title_short	Impact-Sliding of Sintered Steel: Effect of Lubrication
title_full	Impact-Sliding of Sintered Steel: Effect of Lubrication
title_fullStr	Impact-Sliding of Sintered Steel: Effect of Lubrication
title_full_unstemmed	Impact-Sliding of Sintered Steel: Effect of Lubrication
title_sort	impact-sliding of sintered steel: effect of lubrication
publisher	Japanese Society of Tribologists
publishDate	2013
url	https://doaj.org/article/508e7b7d13c2464caaa4975141e66090
work_keys_str_mv	AT mahamessaadi impactslidingofsinteredsteeleffectoflubrication AT gaetanbouvard impactslidingofsinteredsteeleffectoflubrication AT philippekapsa impactslidingofsinteredsteeleffectoflubrication
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Impact-Sliding of Sintered Steel: Effect of Lubrication

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