{"?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-IJYMRQUT/b46a92d2-2e15-4699-8a11-cbfb3b2f3bda/HTML","dcterms:extent":"24 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-IJYMRQUT/501dc201-521f-48fc-a656-40aa72c385fe/PDF","dcterms:extent":"1259 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-IJYMRQUT/f09233c6-1a42-465e-8945-674deff8ad85/TEXT","dcterms:extent":"20 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-IJYMRQUT","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/urn:nbn:si:spr-ihg6vo21"},{"@xml:lang":"sl","#text":"Materiali in tehnologije"}],"dcterms:issued":"2013","dc:creator":["Adámek, Jan","Jenko, Darja","Jurči, Peter","Prikner, Otakar","Salabová, Petra","Sobotová, Jana","Šuštaršič, Borivoj"],"dc:format":[{"@xml:lang":"sl","#text":"številka:1"},{"@xml:lang":"sl","#text":"letnik:47"},{"@xml:lang":"sl","#text":"str. 93-98"}],"dc:identifier":["ISSN:1580-2949","COBISSID:954538","URN:URN:NBN:SI:doc-IJYMRQUT"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},"dc:subject":[{"@xml:lang":"sl","#text":"izločki"},{"@xml:lang":"sl","#text":"jeklo"},{"@xml:lang":"sl","#text":"kriogena obdelava"},{"@xml:lang":"sl","#text":"toplotna obdelava"},{"@rdf:resource":"http://www.wikidata.org/entity/Q25495250"}],"dcterms:temporal":{"@rdf:resource":"2000-2024"},"dc:title":{"@xml:lang":"sl","#text":"Diagnostics of the microstructural changes in sub-zero-processed Vanadis 6 P/M ledeburitic tool steel| Diagnostika sprememb mikrostrukture pri kriogeni obdelavi P/M ledeburitnega orodnega jekla Vanadis 6|"},"dc:description":[{"@xml:lang":"sl","#text":"Specimens made from P/M Vanadis 6 cold-work steel were austenitized, quenched and tempered for various combinations of the parameters. The selected sets of samples, also in the sub-zero range, were treated at a temperature of -196 °C after quenching. The microstructure was investigated as a function of the austenitizing temperature and the parameters of the sub-zero processing using transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM) and X-ray diffraction. It was found that the as-quenched microstructure is composed of martensite, retained austenite and carbides. The sub-zero processing reduced the amount of retained austenite and led to an increase in the tetragonality of the martensitic lattice. As a result, the hardness of the material was higher by 2 HRc before the tempering of the samples after the sub-zero processing, but the hardness of the sub-zero-processed material after tempering is about 2.5 HRc lower than that of the non-sub-zero-processed steel. Based on the facts that the sub-zero-processed steel contained less retained austenite and an unknown amount of the expected nano-precipitates, we expected it to have a lower capability to manifest the secondary-hardening effect"},{"@xml:lang":"sl","#text":"Vzorci, izdelani iz jekla za delo v hladnem P/M Vanadis 6, so bili avstenitizirani, kaljeni in popuščani pri različnih kombinacijah parametrov. Izbrana skupina vzorcev je bila obdelana v kriogenem področju pri temperaturi -196 °C po kaljenju. Preiskana je bila mikrostruktura v odvisnosti od temperature avstenitizacije in parametrov kriogene obdelave, s presevno elektronsko mikroskopijo (TEM), visoko ločljivo presevno elektronsko mikroskopijo (HRTEM) in z rentgensko difrakcijo. Ugotovljeno je, da kaljeno mikrostrukturo sestavljajo martenzit, zaostali avstenit in karbidi. Kriogena obdelava zmanjša delež zaostalega avstenita in povzroči povečano tetragonalnost martenzitne rešetke. Posledica je povečanje trdote za 2 HRc pred popuščanjem kriogeno obdelanega materiala, po popuščanju tega materiala pa je bila trdota za okrog 2,5 HRc nižja v primerjavi z jeklom brez kriogene obdelave. Na osnovi dejstva, da kriogeno obdelano jeklo vsebuje manj zaostalega avstenita in nepoznano količino nanoizločkov, pričakujemo njegovo manjšo zmožnost za pojav sekundarnega utrjevanja"}],"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-IJYMRQUT","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-IJYMRQUT"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-IJYMRQUT/501dc201-521f-48fc-a656-40aa72c385fe/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-IJYMRQUT/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-IJYMRQUT"}}}}