On the effects of heat and surface treatment on the fatigue performance of high-strength leaf springs

Leaf springs constitute the most effective suspension way of commercial vehicle axles from the cost and maintainability point of view. Especially in case of front axles, they overtake both the guidance and suspension functions, which consequently designates them as safety components, whose pre-matur...

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Autores principales:	Malikoutsakis Michail, Gakias Christos, Makris Ioannis, Kinzel Peter, Müller Eckehard, Pappa Maria, Michailidis Nikolaos, Savaidis Georgios
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/cc634975a78644a7917eb9f2d02feffb
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spelling	oai:doaj.org-article:cc634975a78644a7917eb9f2d02feffb2021-12-02T17:13:46ZOn the effects of heat and surface treatment on the fatigue performance of high-strength leaf springs2261-236X10.1051/matecconf/202134904007https://doaj.org/article/cc634975a78644a7917eb9f2d02feffb2021-01-01T00:00:00Zhttps://www.matec-conferences.org/articles/matecconf/pdf/2021/18/matecconf_iceaf2021_04007.pdfhttps://doaj.org/toc/2261-236XLeaf springs constitute the most effective suspension way of commercial vehicle axles from the cost and maintainability point of view. Especially in case of front axles, they overtake both the guidance and suspension functions, which consequently designates them as safety components, whose pre-mature failure is explicitly prohibited. The present paper deals with the fatigue performance of downsized parabolic leaf specimens made of the high-strength spring steel 51CrV4 under serial manufacturing conditions. It focuses on the influence of the major manufacturing steps, i.e. the heat treatment and the subsequently applied stress shot peening. The effectiveness of the applied heat treatment on the microstructure transformation and the extent of surface decarburization is determined by means of optical microscopy and corresponding microstructural analyses. Comprehensive series of constant amplitude fatigue tests are executed before and after the applied stress shot peening to quantify its effectiveness on the fatigue performance. The tests cover two characteristic stress ratios of operational significance with the complete range of interest being experimentally investigated. Additionally, surface residual stresses measurements together with micro- and macro-hardness and roughness values before and after stress shot peening are executed to expose the influence of each individual technological effect on the overall fatigue performance.Malikoutsakis MichailGakias ChristosMakris IoannisKinzel PeterMüller EckehardPappa MariaMichailidis NikolaosSavaidis GeorgiosEDP SciencesarticleEngineering (General). Civil engineering (General)TA1-2040ENFRMATEC Web of Conferences, Vol 349, p 04007 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Engineering (General). Civil engineering (General) TA1-2040 Malikoutsakis Michail Gakias Christos Makris Ioannis Kinzel Peter Müller Eckehard Pappa Maria Michailidis Nikolaos Savaidis Georgios On the effects of heat and surface treatment on the fatigue performance of high-strength leaf springs
description	Leaf springs constitute the most effective suspension way of commercial vehicle axles from the cost and maintainability point of view. Especially in case of front axles, they overtake both the guidance and suspension functions, which consequently designates them as safety components, whose pre-mature failure is explicitly prohibited. The present paper deals with the fatigue performance of downsized parabolic leaf specimens made of the high-strength spring steel 51CrV4 under serial manufacturing conditions. It focuses on the influence of the major manufacturing steps, i.e. the heat treatment and the subsequently applied stress shot peening. The effectiveness of the applied heat treatment on the microstructure transformation and the extent of surface decarburization is determined by means of optical microscopy and corresponding microstructural analyses. Comprehensive series of constant amplitude fatigue tests are executed before and after the applied stress shot peening to quantify its effectiveness on the fatigue performance. The tests cover two characteristic stress ratios of operational significance with the complete range of interest being experimentally investigated. Additionally, surface residual stresses measurements together with micro- and macro-hardness and roughness values before and after stress shot peening are executed to expose the influence of each individual technological effect on the overall fatigue performance.
format	article
author	Malikoutsakis Michail Gakias Christos Makris Ioannis Kinzel Peter Müller Eckehard Pappa Maria Michailidis Nikolaos Savaidis Georgios
author_facet	Malikoutsakis Michail Gakias Christos Makris Ioannis Kinzel Peter Müller Eckehard Pappa Maria Michailidis Nikolaos Savaidis Georgios
author_sort	Malikoutsakis Michail
title	On the effects of heat and surface treatment on the fatigue performance of high-strength leaf springs
title_short	On the effects of heat and surface treatment on the fatigue performance of high-strength leaf springs
title_full	On the effects of heat and surface treatment on the fatigue performance of high-strength leaf springs
title_fullStr	On the effects of heat and surface treatment on the fatigue performance of high-strength leaf springs
title_full_unstemmed	On the effects of heat and surface treatment on the fatigue performance of high-strength leaf springs
title_sort	on the effects of heat and surface treatment on the fatigue performance of high-strength leaf springs
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/cc634975a78644a7917eb9f2d02feffb
work_keys_str_mv	AT malikoutsakismichail ontheeffectsofheatandsurfacetreatmentonthefatigueperformanceofhighstrengthleafsprings AT gakiaschristos ontheeffectsofheatandsurfacetreatmentonthefatigueperformanceofhighstrengthleafsprings AT makrisioannis ontheeffectsofheatandsurfacetreatmentonthefatigueperformanceofhighstrengthleafsprings AT kinzelpeter ontheeffectsofheatandsurfacetreatmentonthefatigueperformanceofhighstrengthleafsprings AT mullereckehard ontheeffectsofheatandsurfacetreatmentonthefatigueperformanceofhighstrengthleafsprings AT pappamaria ontheeffectsofheatandsurfacetreatmentonthefatigueperformanceofhighstrengthleafsprings AT michailidisnikolaos ontheeffectsofheatandsurfacetreatmentonthefatigueperformanceofhighstrengthleafsprings AT savaidisgeorgios ontheeffectsofheatandsurfacetreatmentonthefatigueperformanceofhighstrengthleafsprings
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On the effects of heat and surface treatment on the fatigue performance of high-strength leaf springs

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