Effect of Ni addition on the fracture behaviour of a cast ferritic stainless steel

Vardavoulias, M; Papadimitriou, G

dc.contributor.author	Vardavoulias, M	en
dc.contributor.author	Papadimitriou, G	en
dc.date.accessioned	2014-03-01T01:11:55Z
dc.date.available	2014-03-01T01:11:55Z
dc.date.issued	1996	en
dc.identifier.issn	0167-577X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11864
dc.subject	Austenite	en
dc.subject	Cast ferritic stainless steel	en
dc.subject	Eutectic	en
dc.subject	Fracture	en
dc.subject	Ni	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.classification	Physics, Applied	en
dc.subject.other	Addition reactions	en
dc.subject.other	Austenite	en
dc.subject.other	Carbides	en
dc.subject.other	Composition effects	en
dc.subject.other	Ferrite	en
dc.subject.other	Fracture	en
dc.subject.other	Interfaces (materials)	en
dc.subject.other	Microstructure	en
dc.subject.other	Nickel	en
dc.subject.other	Precipitation (chemical)	en
dc.subject.other	Cast ferritic stainless steel	en
dc.subject.other	Charpy impact energy	en
dc.subject.other	Ferrite dendrites	en
dc.subject.other	Stainless steel	en
dc.title	Effect of Ni addition on the fracture behaviour of a cast ferritic stainless steel	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/0167-577X(96)00006-7	en
heal.identifier.secondary	http://dx.doi.org/10.1016/0167-577X(96)00006-7	en
heal.language	English	en
heal.publicationDate	1996	en
heal.abstract	The effect of 3 wt% Ni addition on microstructure and fracture behaviour of a cast ferritic stainless steel with 0.3 wt% C and 29 wt% Cr after various heating times at a temperature of 660 degrees C has been investigated. The addition of Ni changed the as-cast microstructure from ferrite dendrites surrounded by an interdendritic network of eutectic constituent (ferrite + M(7)C(3) carbides) to a largely ferritic matrix containing small austenitic islands and isolated areas of eutectic constituent (ferrite + M(23)C(6) carbides). The Charpy impact energy was markedly higher when Ni was present. The fracture mode changed from cleavage/interdendritic brittle fracture to partially ductile fracture due to the presence of austenite. The fracture mechanism was found to be governed by three competing phenomena: the decrease of eutectic constituent amount, the precipitation of M(23)C(6) carbides at the alpha/gamma interface and the increase of austenite amount.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Materials Letters	en
dc.identifier.doi	10.1016/0167-577X(96)00006-7	en
dc.identifier.isi	ISI:A1996VB35600014	en
dc.identifier.volume	27	en
dc.identifier.issue	6	en
dc.identifier.spage	349	en
dc.identifier.epage	353	en