Rolling and Rolling-Sliding Contact Fatigue Failure Mechanisms in 32 CrMoV 13 Nitrided Steel—An Experimental Study

The aim of this work is to characterize the rolling and rolling-sliding contact fatigue failure mechanisms on the 32CrMoV13 nitrided steel. During rolling contact fatigue tests (RCF), two general features were observed: specimens presenting short lives and rough and sharpened spalling damage and spe...

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Autores principales:	Luís Coelho, António C. Batista, João Paulo Nobre, Maria José Marques
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	rolling contact fatigue nitriding X-ray diffraction residual stresses fatigue failure mechanisms Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/2ee69e12ec3a492885147af356121fe8
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spelling	oai:doaj.org-article:2ee69e12ec3a492885147af356121fe82021-11-11T15:26:01ZRolling and Rolling-Sliding Contact Fatigue Failure Mechanisms in 32 CrMoV 13 Nitrided Steel—An Experimental Study10.3390/app1121104992076-3417https://doaj.org/article/2ee69e12ec3a492885147af356121fe82021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/10499https://doaj.org/toc/2076-3417The aim of this work is to characterize the rolling and rolling-sliding contact fatigue failure mechanisms on the 32CrMoV13 nitrided steel. During rolling contact fatigue tests (RCF), two general features were observed: specimens presenting short lives and rough and sharpened spalling damage and specimens presenting long lives and only microspalling marks. It was possible to determine a contact fatigue limit of 3 GPa. During rolling-sliding contact fatigue tests (RSCF), a clearly different behaviour between the two specimens in contact has been observed: the driver shows circumferential and inclined cracks and only inclined cracks appear in the follower. This behaviour can be understood if the effect of the residual stress state in near-surface layers is considered. Before RCF tests, the residual stresses are compressive in all near-surface layers. After RCF tests, strong residual stress relaxation and even reversing behaviour was observed in the axial direction, which facilitates the surface crack initiation in the circumferential direction at rolling track borders.Luís CoelhoAntónio C. BatistaJoão Paulo NobreMaria José MarquesMDPI AGarticlerolling contact fatiguenitridingX-ray diffractionresidual stressesfatigue failure mechanismsTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10499, p 10499 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	rolling contact fatigue nitriding X-ray diffraction residual stresses fatigue failure mechanisms Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	rolling contact fatigue nitriding X-ray diffraction residual stresses fatigue failure mechanisms Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Luís Coelho António C. Batista João Paulo Nobre Maria José Marques Rolling and Rolling-Sliding Contact Fatigue Failure Mechanisms in 32 CrMoV 13 Nitrided Steel—An Experimental Study
description	The aim of this work is to characterize the rolling and rolling-sliding contact fatigue failure mechanisms on the 32CrMoV13 nitrided steel. During rolling contact fatigue tests (RCF), two general features were observed: specimens presenting short lives and rough and sharpened spalling damage and specimens presenting long lives and only microspalling marks. It was possible to determine a contact fatigue limit of 3 GPa. During rolling-sliding contact fatigue tests (RSCF), a clearly different behaviour between the two specimens in contact has been observed: the driver shows circumferential and inclined cracks and only inclined cracks appear in the follower. This behaviour can be understood if the effect of the residual stress state in near-surface layers is considered. Before RCF tests, the residual stresses are compressive in all near-surface layers. After RCF tests, strong residual stress relaxation and even reversing behaviour was observed in the axial direction, which facilitates the surface crack initiation in the circumferential direction at rolling track borders.
format	article
author	Luís Coelho António C. Batista João Paulo Nobre Maria José Marques
author_facet	Luís Coelho António C. Batista João Paulo Nobre Maria José Marques
author_sort	Luís Coelho
title	Rolling and Rolling-Sliding Contact Fatigue Failure Mechanisms in 32 CrMoV 13 Nitrided Steel—An Experimental Study
title_short	Rolling and Rolling-Sliding Contact Fatigue Failure Mechanisms in 32 CrMoV 13 Nitrided Steel—An Experimental Study
title_full	Rolling and Rolling-Sliding Contact Fatigue Failure Mechanisms in 32 CrMoV 13 Nitrided Steel—An Experimental Study
title_fullStr	Rolling and Rolling-Sliding Contact Fatigue Failure Mechanisms in 32 CrMoV 13 Nitrided Steel—An Experimental Study
title_full_unstemmed	Rolling and Rolling-Sliding Contact Fatigue Failure Mechanisms in 32 CrMoV 13 Nitrided Steel—An Experimental Study
title_sort	rolling and rolling-sliding contact fatigue failure mechanisms in 32 crmov 13 nitrided steel—an experimental study
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/2ee69e12ec3a492885147af356121fe8
work_keys_str_mv	AT luiscoelho rollingandrollingslidingcontactfatiguefailuremechanismsin32crmov13nitridedsteelanexperimentalstudy AT antoniocbatista rollingandrollingslidingcontactfatiguefailuremechanismsin32crmov13nitridedsteelanexperimentalstudy AT joaopaulonobre rollingandrollingslidingcontactfatiguefailuremechanismsin32crmov13nitridedsteelanexperimentalstudy AT mariajosemarques rollingandrollingslidingcontactfatiguefailuremechanismsin32crmov13nitridedsteelanexperimentalstudy
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Rolling and Rolling-Sliding Contact Fatigue Failure Mechanisms in 32 CrMoV 13 Nitrided Steel—An Experimental Study

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