{"?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-SR9IWKYM/675b0904-9b96-4091-9be4-de14c512da00/PDF","dcterms:extent":"1554 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-SR9IWKYM/d8e3f950-568b-4499-9278-6bea2f80c682/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-SR9IWKYM","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":["Aišman, David","Jirková, Hana","Mašek, Bohuslav"],"dc:format":[{"@xml:lang":"sl","#text":"letnik:48"},{"@xml:lang":"sl","#text":"številka:5"},{"@xml:lang":"sl","#text":"str. 719-723"}],"dc:identifier":["COBISSID:1096106","ISSN:1580-2949","URN:URN:NBN:SI:doc-SR9IWKYM"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},"dc:subject":[{"@xml:lang":"en","#text":"30MnVS6"},{"@xml:lang":"en","#text":"high pressure torsion"},{"@xml:lang":"en","#text":"minithixoforming"},{"@xml:lang":"sl","#text":"plastična deformacija"},{"@xml:lang":"sl","#text":"preoblikovanje v testastem stanju"},{"@xml:lang":"en","#text":"severe plastic deformation"},{"@xml:lang":"sl","#text":"torzija pri visokem tlaku"},{"@rdf:resource":"http://www.wikidata.org/entity/Q4274755"}],"dcterms:temporal":{"@rdf:resource":"2000-2024"},"dc:title":{"@xml:lang":"sl","#text":"Effect of the initial microstructure on the properties of low-alloyed steel upon mini-thixoforming| Vpliv začetne mikrostrukture na lastnosti malolegiranega jekla po predelavi mini-thixoforming|"},"dc:description":[{"@xml:lang":"sl","#text":"Thixoforming is an unconventional forming process based on semi-solid processing. Semi-solid processing involves heating the feedstock to a temperature at which it becomes partly liquid and partly solid. Thanks to partial melting and rapid solidification, unconventional microstructures can be obtained even in conventional materials. Today%s research efforts mainly involve high-alloyed steels with a wide freezing range at lower temperatures. By contrast, low-alloyed steels with the solidification temperatures above 1400 °C are not under extensive investigation. The main objective of the study was to find whether and how the attributes of the feedstock microstructure can be transmitted to the final semi-solid processed microstructure of the 30MnVS6 microalloyed steel. The first stage of the experiment involved mini-thixoforming of the as-received specimens of the steel. In order to assess the effects of the initial microstructure, specimens with three types of microstructure were prepared with high-pressure torsion (HPT), a severe-plastic-deformation (SPD) technique. Initial and final microstructures were examined using light and electron microscopes and image-analysis techniques. The phase composition was determined with the aid of the X-ray diffraction analysis. The mechanical properties were determined with tensile and hardness testing. Information on the local properties and the properties of microstructure constituents was obtained with microhardness measurement"},{"@xml:lang":"sl","#text":"Thixoforming je neobičajen postopek preoblikovanja, ki temelji na preoblikovanju v testastem stanju. Preoblikovanje v testastem stanju vključuje ogrevanje preoblikovanca do temperature, pri kateri postane material delno v staljenem in delno v strjenem stanju. Po zaslugi delnega taljenja in hitrega strjevanja se lahko doseže neobičajne mikrostrukture celo pri navadnih materialih. Sedanje raziskave se izvajajo večinoma na močno legiranih jeklih s širokim intervalom strjevanja pri nižjih temperaturah. Nasprotno se malolegirana jekla s temperature strjevanja nad 1400 °C ne preiskuje intenzivno. Glavni cilj te študije je ugotoviti, ali in kako atribute mikrostrukture surovca prenesti po preoblikovanju v testastem stanju pri mikrolegiranem jeklu 30MnVS6. Prva stopnja eksperimentov je vključevala minithixoforming preoblikovanje dobavljenih vzorcev jekla. Za oceno vpliva začetne mikrostrukture so bili pripravljeni vzorci s tremi vrstami mikrostrukture s torzijo pri visokem tlaku (HPT), to je s tehniko velike plastične deformacije (SPD). Začetne in končne mikrostrukture so bile preiskane s svetlobno mikroskopijo, z elektronsko mikroskopijo in s tehnikami analize slik. Sestava faz je bila določena z rentgensko difrakcijsko analizo. Mehanske lastnosti so bile določene z nateznim preizkusom in z merjenjem trdote. Informacija o lokalnih lastnostih in lastnostih posameznih mikrostrukturnih faz je bila dobljena z meritvami mikrotrdote"}],"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-SR9IWKYM","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-SR9IWKYM"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-SR9IWKYM/675b0904-9b96-4091-9be4-de14c512da00/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-SR9IWKYM/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-SR9IWKYM"}}}}