Precipitation sequences in cold deformed superaustenitic stainless steels

Koutsoukis, T; Papadopoulou, EG; Zormalia, S; Kokkonidis, P; Fourlaris, G

dc.contributor.author	Koutsoukis, T	en
dc.contributor.author	Papadopoulou, EG	en
dc.contributor.author	Zormalia, S	en
dc.contributor.author	Kokkonidis, P	en
dc.contributor.author	Fourlaris, G	en
dc.date.accessioned	2014-03-01T01:34:20Z
dc.date.available	2014-03-01T01:34:20Z
dc.date.issued	2010	en
dc.identifier.issn	0267-0836	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20700
dc.subject	aging hardness	en
dc.subject	cold deformation	en
dc.subject	precipitation	en
dc.subject	Superaustenitic stainless steels	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.classification	Metallurgy & Metallurgical Engineering	en
dc.subject.other	aging hardness	en
dc.subject.other	Cold deformation	en
dc.subject.other	Hardness values	en
dc.subject.other	Intermetallic phasis	en
dc.subject.other	Isothermal aging	en
dc.subject.other	Isothermal exposures	en
dc.subject.other	Phase transformation	en
dc.subject.other	precipitation	en
dc.subject.other	Precipitation sequence	en
dc.subject.other	Spatial distribution	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	Corrosion resistant alloys	en
dc.subject.other	Deformation	en
dc.subject.other	Hardness	en
dc.subject.other	Intermetallics	en
dc.subject.other	Metal cladding	en
dc.subject.other	Phase transitions	en
dc.subject.other	Precipitates	en
dc.subject.other	Size distribution	en
dc.subject.other	Stainless steel	en
dc.title	Precipitation sequences in cold deformed superaustenitic stainless steels	en
heal.type	journalArticle	en
heal.identifier.primary	10.1179/026708309X12506933872748	en
heal.identifier.secondary	http://dx.doi.org/10.1179/026708309X12506933872748	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	The present paper presents the results of a study on the effect of cold deformation upon isothermal aging in S32654 and S31254 superaustenitic stainless steels. Samples were cold rolled up to 60% and aged within the temperature range of 650-950°C for time up to 120 h. Several precipitate species were identified following aging of the steels, with sigma σ phase being the predominant one. The present study helped clarify the effect of cold deformation on the precipitation sequences for both superaustenitic stainless steel grades studied. Cold rolling was found to accelerate precipitation, which occurred during subsequent isothermal exposure. The amount, shape and spatial distribution of all precipitates is an important factor that in general results to higher hardness values, found to be enhanced by prior cold deformation. Finally, the experiments performed indicate a number of phase transformations to precipitation sequences of intermetallic phases taking place, clearly specifying a time-temperature transformation regime where care must be taken during the use of these steels. © 2010 Maney Publishing.	en
heal.publisher	MANEY PUBLISHING	en
heal.journalName	Materials Science and Technology	en
dc.identifier.doi	10.1179/026708309X12506933872748	en
dc.identifier.isi	ISI:000282214900003	en
dc.identifier.volume	26	en
dc.identifier.issue	9	en
dc.identifier.spage	1041	en
dc.identifier.epage	1048	en