Determination of initial compression stresses when extruding bimetallic tubes with porous internal layer

Mamalis, AG; Petrosyan, GL; Manolakos, DE; Petrosyan, HG

dc.contributor.author	Mamalis, AG	en
dc.contributor.author	Petrosyan, GL	en
dc.contributor.author	Manolakos, DE	en
dc.contributor.author	Petrosyan, HG	en
dc.date.accessioned	2014-03-01T01:23:57Z
dc.date.available	2014-03-01T01:23:57Z
dc.date.issued	2006	en
dc.identifier.issn	0924-0136	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17147
dc.subject	Bimetallics	en
dc.subject	Extrusion	en
dc.subject	Plasticity of porous materials	en
dc.subject.classification	Engineering, Industrial	en
dc.subject.classification	Engineering, Manufacturing	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.other	Bimetals	en
dc.subject.other	Extrusion dies	en
dc.subject.other	Plastic deformation	en
dc.subject.other	Porous materials	en
dc.subject.other	Problem solving	en
dc.subject.other	Sintering	en
dc.subject.other	Compression stresses	en
dc.subject.other	Pore-free steel	en
dc.subject.other	Prebondend metallic materials	en
dc.subject.other	Extrusion	en
dc.title	Determination of initial compression stresses when extruding bimetallic tubes with porous internal layer	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.jmatprotec.2005.09.018	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.jmatprotec.2005.09.018	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	This paper presents an analytical approach of the extrusion process applied to biomaterial tubes made of two prebonded metallic materials. The outer component of the bimetallic is a pore-free layer, whilst the internal one is a porous sintered tube. A generalized ""slab method"" of analysis, properly modified to describe the plastic behaviour of a porous-sintered material, developed in combination with the theory of thin shells, in order to investigate the initial stage of plastic deformation in the cylindrical chamber of the extrusion die. Numerical solution of the formulation suggested is conducted for components made of sintered and pore-free steel, respectively, and the effect of porosity on the stress-strain state of the bimetal is examined, allowing, in this manner, application of the method in relevant practical problems in the field of bimetallics. © 2005 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE SA	en
heal.journalName	Journal of Materials Processing Technology	en
dc.identifier.doi	10.1016/j.jmatprotec.2005.09.018	en
dc.identifier.isi	ISI:000235743300018	en
dc.identifier.volume	172	en
dc.identifier.issue	2	en
dc.identifier.spage	277	en
dc.identifier.epage	282	en