20 KB779 KB18 KB199219991993Mamuzić, I.Schlomchack, G. G.Vodopivec, Francletnik:27številka:45 stranistr. 295-300ISSN:1318-0010COBISSID:17095173URN:URN:NBN:SI:doc-AF4ZHBFLenInštitut za kovinske materiale in tehnologijeŽelezarna JeseniceŽelezarna RavneŽelezarna ŠtoreKovine zlitine tehnologijekovineoblikovanje kovinplastometrijareologijavaljanjeThe rheological model of deformation nidus in the process of rolling|On the basis of contemporary ideas on the metal pressure shaping theory and investigation results of the metal stress-stained state during rolling and using variation principles of mechanics, the plastometric classification of metals and alloys, a new rheological model of the high deformation nidus is proposed in this work. The model explains the regularities in the distribution of plastic deformation intensity in the non-contact zones as well as the formation of the feed front end deformation in dependence of the plastometric properties of metals. Experimental data conforming the validity of the model are given alsoNa osnovi sodobnih pogledov o teoriji oblikovanja kovin, raziskav napetostnega stanja v kovini med valjanjem z uporabo variacijskih načel mehanike in plastometrične razvrstitve kovin in zlitin se predlaga nov reološki model visoko deformiranega prostora. Ta model razlaga regularnosti v porazdelitvi intenzitete plastične deformacije v coni brez kontakta in nastanek čela deformacijskega prehitevanja v odvisnosti od plastometričnih lastnosti kovin. V članku so priloženi eksperimentalni podatki, ki potrjujejo veljavnost modelaTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of Slovenia