A novel approach of accurately evaluating residual stress and microstructure of welded electrical steels

dc.contributor.author	Βουρνά, Πολυξένη Π.	el
dc.contributor.author	Κτενά, Αφροδίτη	el
dc.contributor.author	Τσακιρίδης, Οδυσσέας	el
dc.contributor.author	Χριστοφόρου, Ευάγγελος	el
dc.date.accessioned	2015-06-07T08:57:02Z
dc.date.available	2015-06-07T08:57:02Z
dc.date.issued	2015-06-07
dc.identifier.uri	http://hdl.handle.net/11400/15427
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://www.sciencedirect.com/science/article/pii/S0963869515000031	en
dc.subject	Magnetic calibration
dc.subject	Residual stress distribution
dc.subject	Μαγνητική βαθμονόμηση
dc.subject	Διανομή κατάλοιπων
dc.title	A novel approach of accurately evaluating residual stress and microstructure of welded electrical steels	en
heal.type	journalArticle
heal.classification	Technology
heal.classification	Electronics
heal.classification	Τεχνολογία
heal.classification	Ηλεκτρονική
heal.classificationURI	http://zbw.eu/stw/descriptor/10470-6
heal.classificationURI	http://zbw.eu/stw/descriptor/10455-2
heal.classificationURI	N/A-Τεχνολογία
heal.classificationURI	N/A-Ηλεκτρονική
heal.identifier.secondary	doi:10.1016/j.ndteint.2014.09.011
heal.language	en
heal.access	campus
heal.recordProvider	Τ.Ε.Ι Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Ηλεκτρονικών Μηχανικών Τ.Ε.	el
heal.publicationDate	2015-04
heal.bibliographicCitation	Vourna, P., Ktena, A., Tsakiridis, P. and Hristoforou, E. (April 2015). A novel approach of accurately evaluating residual stress and microstructure of welded electrical steels. NDT & E International. 71. pp. 33-42. Elsevier Ltd: 2015. Available from: http://www.sciencedirect.com/science/article/pii/S0963869515000031 [Accessed 09/01/2015]	en
heal.abstract	In the present research work the determination of residual stress distribution in welded non-oriented electrical steel samples is discussed. Tungsten inert gas was used for the welding method. Residual stress was directly determined through deformation measurements and appropriate math calculations. Two methods were used: the magnetic, non-destructive method of Barkhausen noise and the semi-destructive method of X-ray diffraction. In order to evaluate the accuracy and reliability of the magnetic method applied, the steel samples were subjected to both compressive and tensile stresses and the magnetic noise values were correlated to residual stress values through an appropriate calibration curve. The results were then verified by the XRD method and were further evaluated by examining the microstructure and the mechanical properties of the as received and welded samples through scanning electron microscopy and hardness measurements, respectively. It was found that the deviation between the two methods was within acceptable limits, thus implying potential applicability of the MBN method in non-destructive testing of materials.	en
heal.publisher	Elsevier Ltd	en
heal.journalName	NDT & E International	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true