. . "0"^^ . "V\u00FDvoj nov\u00FDch materi\u00E1lu s\u00A0ultra-jemnou strukturou neboli nanostrukturn\u00EDch materi\u00E1l\u016F pat\u0159\u00ED v sou\u010Dasnosti k p\u0159edn\u00EDm oblastem v\u00FDzkumu materi\u00E1l\u016F a tv\u00E1\u0159ec\u00EDch technologi\u00ED na cel\u00E9m sv\u011Bt\u011B. Dan\u00E1 problematika je jedn\u00EDm z nosn\u00FDch t\u00E9mat 7. r\u00E1mcov\u00E9ho programu EU. Podstata procesu spo\u010D\u00EDv\u00E1 v doc\u00EDlen\u00ED velikosti zrna u zkou\u0161en\u00E9ho materi\u00E1lu pod 1 um. Sub-mikrokrystalick\u00E9 materi\u00E1ly s pr\u016Fm\u011Brnou velikost\u00ED zrna od 50 do 200 nm se vyzna\u010Duj\u00ED velmi vysokou tva\u0159itelnost\u00ED p\u0159i zachov\u00E1n\u00ED velmi dobr\u00FDch pevnostn\u00EDch vlastnost\u00ED. V\u00FDznamn\u00E1 \u010D\u00E1st prac\u00ED sou\u010Dasn\u00FDch v\u011Bdeck\u00FDch st\u0159edisek se v\u011Bnuje problematice zpev\u0148ov\u00E1n\u00ED v pr\u016Fb\u011Bhu procesu plastick\u00E9 deformace. Praktick\u00FD aspekt dan\u00E9ho procesu je v\u00E1z\u00E1n na mo\u017Enost zv\u00FD\u0161en\u00ED zat\u00ED\u017Een\u00ED p\u0159en\u00E1\u0161en\u00FDch konstruk\u010Dn\u00EDmi prvky vyr\u00E1b\u011Bn\u00FDmi z nanostrukturn\u00EDchmateri\u00E1l\u016F a z\u00E1rove\u0148 se zv\u00FD\u0161en\u00EDm bezpe\u010Dnosti p\u0159i jejich zat\u011B\u017Eov\u00E1n\u00ED v\u011Bt\u0161\u00EDmi silami od sil uva\u017Eovan\u00FDch p\u0159i jejich konstruk\u010Dn\u00EDm n\u00E1vrhu. Hlavn\u00ED n\u00E1pln\u00ED prac\u00ED dan\u00E9ho projektu bude ov\u011B\u0159en\u00ED nov\u00E9 technologie v\u00FDroby nanostrukturn\u00EDch materi\u00E1l\u016F tzv. EHAD - Extrusion"@cs . "0"^^ . . . . "1"^^ . . . "3520"^^ . "strain; strength; formability; ultrafine grain structure; change of deformation process"@en . "20"^^ . . . "20"^^ . "Development of materials with ultra-fine structure, i.e. nano-structural materials, belongs nowadays to frontend areas of research of materials and forming technologies all over the world. This topic is also one of the leading themes of the EU 7th Framework program. Substance of this process consists in obtaining of grain size of tested material under 1 um. Sub-microcrystalline materials with average grain size from 50 to 200 nm are characterised by very high formability with preservation of theirvery good strength properties. Important part of works of existing research centres deals with issues of strengthening in the course of plastic deformation. Practical aspect of this process is connected with possibility of increasing of loads carried by structural elements fabricated from nano-structural materials and at the same time increasing of safety in case of loading by forces higher than original design loads. Main content of work in this project will consist of verification of new technology of"@en . . "V\u00FDvoj nov\u00E9 technologie vyu\u017E\u00EDvaj\u00EDc\u00ED vysok\u00FD stupe\u0148 deformace pro v\u00FDrobu ultra-jemnozrnn\u00FDch materi\u00E1l\u016F"@cs . . "New technology development with high amount of deformation for production of UFG materials"@en . . "2008-01-01+01:00"^^ . "2010-12-31+01:00"^^ . . "3520"^^ .