Effect of cold deformation upon ageing of superaustenitic stainless steels

Koutsoukis, T; Zormalia, S; Kokkonidis, P; Papadopoulou, E; Tsakiridis, P; Fourlaris, G

dc.contributor.author	Koutsoukis, T	en
dc.contributor.author	Zormalia, S	en
dc.contributor.author	Kokkonidis, P	en
dc.contributor.author	Papadopoulou, E	en
dc.contributor.author	Tsakiridis, P	en
dc.contributor.author	Fourlaris, G	en
dc.date.accessioned	2014-03-01T02:46:46Z
dc.date.available	2014-03-01T02:46:46Z
dc.date.issued	2010	en
dc.identifier.issn	10226680	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32835
dc.subject	Cold rolling	en
dc.subject	Heat treatment	en
dc.subject	Precipitation	en
dc.subject	Superaustenitic stainless steel	en
dc.subject.other	Cold deformation	en
dc.subject.other	Corrosion property	en
dc.subject.other	Deformed samples	en
dc.subject.other	High temperature	en
dc.subject.other	Isothermal ageing	en
dc.subject.other	Isothermal exposures	en
dc.subject.other	Micro-structural	en
dc.subject.other	Phase formations	en
dc.subject.other	Precipitation	en
dc.subject.other	Precipitation behaviour	en
dc.subject.other	Precipitation characteristics	en
dc.subject.other	Secondary phasis	en
dc.subject.other	Superaustenitic stainless steel	en
dc.subject.other	Temperature range	en
dc.subject.other	Time temperature transformation	en
dc.subject.other	Cold rolling	en
dc.subject.other	Deformation	en
dc.subject.other	Heat treatment	en
dc.subject.other	Laser beam welding	en
dc.subject.other	Mechanical properties	en
dc.subject.other	Metal cladding	en
dc.subject.other	Stainless steel	en
dc.title	Effect of cold deformation upon ageing of superaustenitic stainless steels	en
heal.type	conferenceItem	en
heal.identifier.primary	10.4028/www.scientific.net/AMR.89-91.301	en
heal.identifier.secondary	http://dx.doi.org/10.4028/www.scientific.net/AMR.89-91.301	en
heal.publicationDate	2010	en
heal.abstract	Cold rolling followed by ageing in two grades of superaustenitic stainless steel was performed in order to assess the effect of cold deformation on the precipitation characteristics of these steels. Samples were cold rolled from 20% to 60% reduction in thickness and aged within the temperature range of 650°C to 950°C for times up to 120h. Following ageing precipitation of secondary phases took place, with sigma (σ) phase formation being the predominant precipitate species forming. Secondary phases have been reported to form following isothermal exposure to high temperatures, yet the precipitation behaviour of cold deformed samples has received less attention. When compared to the ageing characteristics of undeformed samples, cold deformation was found to accelerate precipitation during ageing. This study helped clarify a time-temperature-transformation regime relating isothermal ageing of cold deformation that could be applied to these steels in order to avoid occurrence of undesirable microstructural constituents with the associated reduction of mechanical and corrosion properties. © (2010) Trans Tech Publications.	en
heal.journalName	Advanced Materials Research	en
dc.identifier.doi	10.4028/www.scientific.net/AMR.89-91.301	en
dc.identifier.volume	89-91	en
dc.identifier.spage	301	en
dc.identifier.epage	306	en