{"?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-8M52BU0I/6d2e6a51-79a8-4706-9986-b33c103579c6/HTML","dcterms:extent":"28 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-8M52BU0I/ff8408fe-96bf-42d5-adf6-58ee328c4331/PDF","dcterms:extent":"256 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-8M52BU0I/9a99d6d2-8650-49e2-abd8-f31f087a0516/TEXT","dcterms:extent":"26 KB"}],"edm:TimeSpan":{"@rdf:about":"1992-1999","edm:begin":{"@xml:lang":"en","#text":"1992"},"edm:end":{"@xml:lang":"en","#text":"1999"}},"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:doc-8M52BU0I","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:spr-QKUCN2BD"},{"@xml:lang":"sl","#text":"Kovine zlitine tehnologije"}],"dcterms:issued":"1999","dc:creator":["Dobi, Djordje","Junghans, Eva"],"dc:format":[{"@xml:lang":"sl","#text":"letnik:33"},{"@xml:lang":"sl","#text":"številka:6"},{"@xml:lang":"sl","#text":"7 strani"},{"@xml:lang":"sl","#text":"str. 451-457"}],"dc:identifier":["ISSN:1318-0010","COBISSID:203946","URN:URN:NBN:SI:doc-8M52BU0I"],"dc:language":"en","dc:publisher":[{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},{"@xml:lang":"sl","#text":"Železarna Jesenice"},{"@xml:lang":"sl","#text":"Železarna Ravne"},{"@xml:lang":"sl","#text":"Železarna Štore"}],"dc:subject":[{"@xml:lang":"sl","#text":"mehanske lastnosti"},{"@xml:lang":"sl","#text":"natezni preizkus"},{"@xml:lang":"sl","#text":"preizkušanje"},{"@xml:lang":"sl","#text":"zvari"},{"@rdf:resource":"http://www.wikidata.org/entity/Q115605"}],"dcterms:temporal":{"@rdf:resource":"1992-1999"},"dc:title":{"@xml:lang":"sl","#text":"Determination of the tensile properties of specimens with small dimensions| Merjenje trdnostnih lastnosti s preizkušanci malih dimenzij|"},"dc:description":[{"@xml:lang":"sl","#text":"In practice it happens that not enough material is available in order to extract standard tensile specimens. This is especially the case when welded joints like laser weld or explosive cladded joints have to be characterized. Similar problems appear in cade of failures of components where not enough material for investigation is available. Up to now indirect solutions were used. Yield strength and tensile strength were obtained by conversion calculations of measured hardness profiles. This conversions contain errors. Furthermore, important information concerning the deformation behaviour is lost. In this contribution the test technique of mini flat tensile specimens with measuring area of 1 mm is discussed, from the extracting process on up to measuring the elongation directly on the specimen. The dicussed testing device is protected by Patent DE 197 44 104 A1 and Patr. Reg. No. 9800255 SLO"},{"@xml:lang":"sl","#text":"Zgodi se, da za merjenje trdnostnih lastnosti ni na voljo dovolj mateiala za izdelavo standardnih nateznih preizkušancev. Ta problem je še posebej aktualen pri karakterizaciji varjenih spojev, narejenih z novimi tehnologijami (lasersko varjenje, eksplozijsko varjenje itd.), kjer so posamezne cone vara zelo ozke in lahko govorimo le bolj o liniji spajanja. S klasičnimi nateznimi preizkušanci v takšnem primeru seveda ne moremo izmeriti profila mehanskih lastnosti preko varjenega spoja. Podobno velja tudi pri analizi vzrokov različnih poškodb strojnih delov in komponent, kjer imajo lahko ostanki tako majhen volumen, da ne omogočajo izdelave dovolj velikih nateznih preizkušancev in zato mehanskih lastnosti materiala tudi ne moremo neposredno izmeriti. Pri opisanih težavah so si do sedaj pomagali posredno, namreč z merjenjem profilov (mikro)trdot in preračunavanjem izmerjenih vrednosti v napetost tečenja oziroma v trdnost materiala. Zlasti preračunavanje v trdnost materiala pa je lahko povezano z znatnimi napakami, pa tudi nobenih podatkov o duktilnosti mateiala (raztezek, kontrakcija) pri tem ne pridobimo. V prispevki je zato predstavljen mini natezni ploščati preizkušanec preseka 1 mmsup2, odvzemanje materiala za izdelavo in sama izdelava takšnega preizkušanca ter način preizkušanja, pri katerem se kljub miniaturizaciji meri raztezek neposredno na preizkušancu. Del naprave, ki služi merjenju raztezka je tudi ustrezno patentno zaščiten (DE 197 44 104 A1, P-9800255 SLO)"}],"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-8M52BU0I","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:doc-8M52BU0I"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:doc-8M52BU0I/ff8408fe-96bf-42d5-adf6-58ee328c4331/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-8M52BU0I/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:doc-8M52BU0I"}}}}