{"?xml":{"@version":"1.0"},"edm:RDF":{"@xmlns:dc":"http://purl.org/dc/elements/1.1/","@xmlns:edm":"http://www.europeana.eu/schemas/edm/","@xmlns:wgs84_pos":"http://www.w3.org/2003/01/geo/wgs84_pos","@xmlns:foaf":"http://xmlns.com/foaf/0.1/","@xmlns:rdaGr2":"http://rdvocab.info/ElementsGr2","@xmlns:oai":"http://www.openarchives.org/OAI/2.0/","@xmlns:owl":"http://www.w3.org/2002/07/owl#","@xmlns:rdf":"http://www.w3.org/1999/02/22-rdf-syntax-ns#","@xmlns:ore":"http://www.openarchives.org/ore/terms/","@xmlns:skos":"http://www.w3.org/2004/02/skos/core#","@xmlns:dcterms":"http://purl.org/dc/terms/","edm:WebResource":[{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-CGGSFMPW/a7f05c2f-5298-4097-b8c5-df22cf01c2e3/PDF","dcterms:extent":"2101 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-CGGSFMPW/9091e6d8-1b49-4957-952f-755346885a7b/TEXT","dcterms:extent":"16 KB"}],"edm:TimeSpan":{"@rdf:about":"2000-2024","edm:begin":{"@xml:lang":"en","#text":"2000"},"edm:end":{"@xml:lang":"en","#text":"2024"}},"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:DOC-CGGSFMPW","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/urn:nbn:si:spr-ihg6vo21"},{"@xml:lang":"sl","#text":"Materiali in tehnologije"}],"dcterms:issued":"2014","dc:creator":["Dlouhý, Jaromír","Hauserova, Daniela","Nový, Zbyšek"],"dc:format":[{"@xml:lang":"sl","#text":"letnik:48"},{"@xml:lang":"sl","#text":"številka:5"},{"@xml:lang":"sl","#text":"797-800"}],"dc:identifier":["COBISSID:1099434","ISSN:1580-2949","URN:URN:NBN:SI:doc-CGGSFMPW"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},"dc:subject":[{"@xml:lang":"sl","#text":"jeklo"},{"@xml:lang":"en","#text":"microstructure"},{"@xml:lang":"sl","#text":"mikrostruktura"},{"@xml:lang":"en","#text":"refinement"},{"@xml:lang":"en","#text":"rolling"},{"@xml:lang":"sl","#text":"sferoidizacija"},{"@xml:lang":"en","#text":"spheroidisation"},{"@xml:lang":"en","#text":"steel"},{"@xml:lang":"sl","#text":"udrobnjenje"},{"@xml:lang":"sl","#text":"valjanje"},{"@rdf:resource":"http://www.wikidata.org/entity/Q7307203"}],"dcterms:temporal":{"@rdf:resource":"2000-2024"},"dc:title":{"@xml:lang":"sl","#text":"Accelerated carbide spheroidisation and refinement (ASR) of the C45 steel during controlled rolling| Pospešena sferoidizacija in udrobnjenje karbidov (ASR) pri kontroliranem valjanju jekla C45|"},"dc:description":[{"@xml:lang":"sl","#text":"Current industry trends include the search for cost- and energy-saving procedures and technologies. A new process has been discovered recently, which allows a significant refinement of ferrite grains and a carbide spheroidisation in a shorter time than in the case of conventional heat-treatment techniques. During this newly-developed ASR-based (accelerated spheroidisation and refinement) plastic deformation an accelerated spheroidisation and a refinement due to the heat treatment in the vicinity of the A1 temperature occur. Controlled rolling enables a production of the materials with a fine microstructure and better mechanical properties than conventional production processes. Accelerated carbide spheroidisation and refinement (ASR) is aimed to produce steel workpieces with a microstructure consisting of a fine-grained ferrite matrix and globular carbide particles. In carbon steels, this microstructure has higher yield strength and toughness than the conventional ferritic-pearlitic microstructure. The presented paper describes the effect of the ASR process on the C45 steel. The pearlite morphology was influenced by forming it at the temperatures around critical temperature A1 and an accelerated carbide-particle spheroidisation was achieved. The deformation increases the dislocation density and enhances the diffusion rate. Cementite globules form rapidly, within seconds or minutes at the most"},{"@xml:lang":"sl","#text":"Sedanje usmeritve industrije vključujejo tudi iskanje stroškovno in energijsko ugodnejših postopkov in tehnologij. Razvit je bil nov postopek, ki omogoča znatno udrobnjenje zrn ferita in sferoidizacijo karbidov v krajšem času v primerjavi s konvencionalnimi tehnikami toplotne obdelave. Pri tej novo razviti plastični deformaciji, na kateri temelji ASR (pospešena sferoidizacija in udrobnjenje), se pri plastični deformaciji pojavi pospešena sferoidizacija in udrobnjenje med toplotno obdelavo v bližini temperature A1. Kontrolirano valjanje omogoča izdelavo materialov z drobno mikrostrukturo in z boljšimi mehanskimi lastnostmi kot pri navadnih proizvodnih procesih. Namen pospešene sferoidizacije karbidov in udrobnjenja zrn (ASR) je izdelava jekla z mikrostrukturo iz drobnih zrn ferita in globularnih karbidnih zrn. Pri ogljikovih jeklih ima ta mikrostruktura višjo mejo tečenja in večjo žilavost kot navadna feritno-perlitna mikrostruktura. Članek opisuje učinek ASR-procesa na jeklo C45. Na morfologijo perlita se vpliva s preoblikovanjem pri temperaturah okrog kritične temperature A1, in s tem je dosežena sferoidizacija karbidnih delcev. Deformacija povečuje gostoto dislokacij in poveča hitrost difuzije. Globularni cementit največkrat nastane v nekaj sekundah ali minutah"}],"edm:type":"TEXT","dc:type":[{"@xml:lang":"sl","#text":"znanstveno časopisje"},{"@xml:lang":"en","#text":"journals"},{"@rdf:resource":"http://www.wikidata.org/entity/Q361785"}]},"ore:Aggregation":{"@rdf:about":"http://www.dlib.si/?URN=URN:NBN:SI:DOC-CGGSFMPW","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-CGGSFMPW"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-CGGSFMPW/a7f05c2f-5298-4097-b8c5-df22cf01c2e3/PDF"},"edm:rights":{"@rdf:resource":"http://rightsstatements.org/vocab/InC/1.0/"},"edm:provider":"Slovenian National E-content Aggregator","edm:intermediateProvider":{"@xml:lang":"en","#text":"National and University Library of Slovenia"},"edm:dataProvider":{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},"edm:object":{"@rdf:resource":"http://www.dlib.si/streamdb/URN:NBN:SI:DOC-CGGSFMPW/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-CGGSFMPW"}}}}