Twist-channel angular pressing: effect of the strain path on grain refinement and mechanical properties of copper

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Show simple item record Kocich, Radim Fiala, Jaroslav Szurman, Ivo Macháčková, Adéla Mihola, Milan 2011-11-04T11:47:08Z 2011-11-04T11:47:08Z 2011
dc.identifier.citation Journal of materials science. 2011, vol. 46, no. 24, p. 7865-7876. cs
dc.identifier.issn 0022-2461
dc.identifier.issn 1573-4803
dc.description.abstract Substructural characteristics of Cu (99.97%) were examined after the Twist channel angular pressing (TCAP) process carried out at ambient temperature. Grain refinement efficiency and resulting thermal stability were evaluated after three passes with respect to utilization of various strain paths. Results were obtained using light microscopy and X-ray diffraction methods; Mechanical properties of extruded materials were also tested. Thermal stability was studied after application of three annealing cycles. Based on the findings, Bc route is the most efficient strain path with respect to the grain refinement; higher speed of extrusion (10 mm/s) corresponds with suppression of the static recrystallization. Measured strength, obtained after three passes (route A), achieved values around 440 MPa homogeneously along the cross section of the extruded material. Homogeneity of deformation was also confirmed by micro-hardness tests. The grain size, determined after three passes, averaged out 1.2 μm. Application of TCAP (three passes) brought markedly homogeneous deformation throughout the processed sample in comparison with classical ECAP process. cs
dc.language.iso en cs
dc.publisher Springer cs
dc.relation.ispartofseries Journal of materials science cs
dc.relation.uri cs
dc.title Twist-channel angular pressing: effect of the strain path on grain refinement and mechanical properties of copper cs
dc.type article cs
dc.identifier.location Ve fondu ÚK cs
dc.identifier.doi 10.1007/s10853-011-5768-1
dc.type.status Peer-reviewed cs
dc.description.source Web of Science cs
dc.description.volume 46 cs
dc.description.issue 24 cs
dc.description.lastpage 7876 cs
dc.description.firstpage 7865 cs
dc.identifier.wos 000295177200026

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