An investigation on the high stress sensitivity of fatigue life of rolled AZ31 magnesium alloy under constant amplitude fatigue loading

Chamos, AN; Charitidis, CA; Skarmoutsou, A; Pantelakis, SG

dc.contributor.author	Chamos, AN	en
dc.contributor.author	Charitidis, CA	en
dc.contributor.author	Skarmoutsou, A	en
dc.contributor.author	Pantelakis, SG	en
dc.date.accessioned	2014-03-01T01:32:44Z
dc.date.available	2014-03-01T01:32:44Z
dc.date.issued	2010	en
dc.identifier.issn	8756-758X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20212
dc.subject	Crack initiation	en
dc.subject	Cyclic plasticity	en
dc.subject	Fatigue damage accumulation	en
dc.subject	Magnesium alloys	en
dc.subject	Nano-indentation	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.other	AZ31 alloy	en
dc.subject.other	AZ31 magnesium alloy	en
dc.subject.other	Constant amplitude	en
dc.subject.other	Cyclic plasticity	en
dc.subject.other	Different damages	en
dc.subject.other	Fatigue damage accumulation	en
dc.subject.other	Fatigue damage mechanism	en
dc.subject.other	Fatigue life	en
dc.subject.other	Fatigue loadings	en
dc.subject.other	Fatigue specimen	en
dc.subject.other	Fractographic analysis	en
dc.subject.other	Fracture characteristics	en
dc.subject.other	Hexagonal close-packed	en
dc.subject.other	High stress	en
dc.subject.other	Loading condition	en
dc.subject.other	Nano scale	en
dc.subject.other	Nano-indentation measurements	en
dc.subject.other	Replication techniques	en
dc.subject.other	Slip system	en
dc.subject.other	Alloys	en
dc.subject.other	Crack initiation	en
dc.subject.other	Cracks	en
dc.subject.other	Fracture	en
dc.subject.other	Magnesium	en
dc.subject.other	Magnesium alloys	en
dc.subject.other	Plasticity	en
dc.subject.other	Quality assurance	en
dc.subject.other	Stress analysis	en
dc.subject.other	Stress corrosion cracking	en
dc.subject.other	Fatigue damage	en
dc.title	An investigation on the high stress sensitivity of fatigue life of rolled AZ31 magnesium alloy under constant amplitude fatigue loading	en
heal.type	journalArticle	en
heal.identifier.primary	10.1111/j.1460-2695.2009.01434.x	en
heal.identifier.secondary	http://dx.doi.org/10.1111/j.1460-2695.2009.01434.x	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	In the present work, an investigation on the high stress sensitivity of the fatigue life of the AZ31 rolled magnesium alloy under constant amplitude fatigue loading has been carried out. Different damage parameters were involved to quantify fatigue damage accumulation at the various scales of material volume corresponding to the changing fatigue damage mechanisms that prevail at the various stages of the fatigue life. The experimental work included mainly nano-indentation measurements to evaluate hardness evolution at the nano-scale due to cyclic plasticity, results of micro-crack monitoring by using the replication technique and fractographic analysis to obtain the fracture characteristics of the fatigue specimens after failure. The hexagonal close-packed structure of the alloy and the resulting difficulty for the activation of five independent slip systems required for homogeneous plastic deformation were considered to determine the high stress sensitivity of the fatigue life observed for the rolled AZ31 alloy under the investigated loading conditions. © 2010 Blackwell Publishing Ltd.	en
heal.publisher	WILEY-BLACKWELL PUBLISHING, INC	en
heal.journalName	Fatigue and Fracture of Engineering Materials and Structures	en
dc.identifier.doi	10.1111/j.1460-2695.2009.01434.x	en
dc.identifier.isi	ISI:000275205300005	en
dc.identifier.volume	33	en
dc.identifier.issue	4	en
dc.identifier.spage	252	en
dc.identifier.epage	265	en