{"?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-RNMT1SSM/19815e29-ea9f-41e8-84e2-ed4e92b0a3be/HTML","dcterms:extent":"53 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-RNMT1SSM/a33e2642-9c8f-4819-938d-924bb27bbd9c/PDF","dcterms:extent":"772 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-RNMT1SSM/b80a191d-04a6-4044-a2b5-819224df63b3/TEXT","dcterms:extent":"49 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-RNMT1SSM","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":["Leskovšek, Vojteh","Podgornik, Bojan"],"dc:format":[{"@xml:lang":"sl","#text":"številka:3"},{"@xml:lang":"sl","#text":"letnik:47"},{"@xml:lang":"sl","#text":"str. 273-283"}],"dc:identifier":["ISSN:1580-2949","COBISSID:991402","URN:URN:NBN:SI:doc-RNMT1SSM"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},"dc:subject":[{"@xml:lang":"en","#text":"characterization"},{"@xml:lang":"en","#text":"fracture toughness"},{"@xml:lang":"sl","#text":"karakterizacija"},{"@xml:lang":"sl","#text":"lomna žilavost"},{"@xml:lang":"sl","#text":"orodno jeklo"},{"@xml:lang":"en","#text":"tool steel"},{"@xml:lang":"en","#text":"vacuum heat treatment"},{"@xml:lang":"sl","#text":"vakuumska toplotna obdelava"},{"@rdf:resource":"http://www.wikidata.org/entity/Q911969"}],"dcterms:temporal":{"@rdf:resource":"2000-2024"},"dc:title":{"@xml:lang":"sl","#text":"Multi-functional Ksub{Ic}-test specimen for the assessment of different tool- and high-speed-steel properties| Večfunkcijski Kspodaj{Ic}-preizkušanec za določanje različnih lastnosti orodnih in hitroreznih jekel|"},"dc:description":[{"@xml:lang":"sl","#text":"Depending on the differences in the balanced alloy composition and steel processing technology, the properties of tool and high-speed steel, like temper resistance, hot yield strength, ductility and toughness, thermal fatigue and shock resistance, as well as wear resistance can differ considerably among the same type of steel. A high hot-yield strength, a high temper resistance and a good ductility tend to result in a high resistance to thermal fatigue, while a resistance to mechanical and thermal shocks depends on the ductility and toughness. However, the properties of tool and high-speedsteels also depend on the final vacuum- heat-treatment process. Normally, hardness and fracture toughness are used to determine the influence of vacuum-heat- treatment parameters and to optimize them for the specific operating conditions of the tool. However, there are also other tool properties which are equally important and need to be taken into consideration. To determine such a wide range of properties, different test procedures and different test specimens are required since none of the standard tests alone is capable of providing the relevant properties completely. Currently the best overall appraisal of tool and high-speed steel applicability seems to be a combination of fracture toughness, bending or compression testing and in specific cases of impact or small-punch creep tests. The aim of the paper is to show the possibility of using a single Ksub{Ic}-test specimen for the determination of such a wide range of properties, being important for tool and high-speed steels. Besides that, the usability of Ksub{Ic}-test specimens for the assessment of technological properties such as nitridability, machinability, wear resistance, etc. was confirmed"},{"@xml:lang":"sl","#text":"Odvisno od razlik v sestavi in tehnologije izdelave jekla lahko pri isti vrsti orodnega ali hitroreznega jekla močno variirajo lastnosti, kot so: odpornost proti popuščni krhkosti, natezna trdnost v vročem, duktilnost in žilavost, odpornost proti termičnemu utrujanju in udarcem, kot tudi odpornost proti obrabi. Visoka meja elastičnosti v vročem, velika odpornost proti popuščanju in dobra duktilnost se izražajo v visoki odpornosti proti termičnemu utrujanju, medtem ko sta odpornost proti mehanskim udarcem in termičnim šokom odvisni od duktilnosti in žilavosti. Vendar pa so lastnosti orodnega in hitroreznega jekla odvisne tudi od procesa končne vakuumske toplotne obdelave. Navadno se uporabljata trdota in lomna žilavost za ugotavljanje vpliva parametrov vakuumske toplotne obdelave in za njeno optimiranje pri orodjih, namenjenih specifičnim razmeram pri uporabi. Vendar obstajajo tudi druge lastnosti orodja, ki so enako pomembne in jih je potrebno upoštevati. Za določanje tako širokega področja lastnosti so potrebne različne vrste preizkusov in različni preizkusni vzorci, saj nobena standardna preizkusna metoda ni sposobna ugotavljanja vseh lastnosti. Trenutno najboljše presojanje uporabnosti orodnih in hitroreznih jekel omogoča kombinacija lomne žilavosti, upogibne ali tlačne trdnosti in v posebnih primerih udarni preizkus ali \"small-punch\" preizkus lezenja. Namen članka je prikazati možnost uporabe Kspodaj{Ic}-preizkušanca za določanje različnih lastnosti, pomembnih za orodna in hitrorezna jekla. Poleg tega je bilo potrjeno, da Kspodaj{Ic}-preizkusni vzorec omogoča tudi določanje tehnološkihlastnosti, kot so sposobnost za nitriranje, obdelovalnost, obrabna odpornost in druge"}],"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-RNMT1SSM","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-RNMT1SSM"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-RNMT1SSM/a33e2642-9c8f-4819-938d-924bb27bbd9c/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-RNMT1SSM/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-RNMT1SSM"}}}}