[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.rebelion.cz\/pevnost-a-odolnost-v-jednom-materialu\/#Article","mainEntityOfPage":"https:\/\/www.rebelion.cz\/pevnost-a-odolnost-v-jednom-materialu\/","headline":"Pevnost a odolnost v jednom materi\u00e1lu","name":"Pevnost a odolnost v jednom materi\u00e1lu","description":"Ocel ozna\u010dovan\u00e1 jako 15NiCr13, pat\u0159\u00ed mezi legovan\u00e9 n\u00edzkouhl\u00edkov\u00e9 ocele, kter\u00e9 jsou s p\u0159\u00edm\u011bs\u00ed niklu a chromu. Tato kombinace prvk\u016f j\u00ed dod\u00e1v\u00e1 vysokou pevnost, tvrdost a v\u00fdbornou schopnost kalen\u00ed. Oproti b\u011b\u017en\u00fdm ocel\u00edm je v\u00fdrazn\u011b odoln\u011bj\u0161\u00ed v\u016f\u010di opot\u0159eben\u00ed a z\u00e1rove\u0148 si zachov\u00e1v\u00e1 dostate\u010dnou hou\u017eevnatost, co\u017e z n\u00ed \u010din\u00ed ide\u00e1ln\u00ed materi\u00e1l pro nam\u00e1han\u00e9 sou\u010d\u00e1sti stroj\u016f. Pro\u010d pr\u00e1v\u011b tato […]","datePublished":"2025-01-14","dateModified":"2025-01-14","author":{"@type":"Person","@id":"https:\/\/www.rebelion.cz\/author\/devene\/#Person","name":"devene","url":"https:\/\/www.rebelion.cz\/author\/devene\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/fb50772173929303fbe6024f179e4dd9837c71f6efc661bdb046860d442d05b5?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/fb50772173929303fbe6024f179e4dd9837c71f6efc661bdb046860d442d05b5?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"rebelion.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.rebelion.cz\/wp-content\/uploads\/p%C5%99evody.jpg","url":"https:\/\/www.rebelion.cz\/wp-content\/uploads\/p%C5%99evody.jpg","height":0,"width":0},"url":"https:\/\/www.rebelion.cz\/pevnost-a-odolnost-v-jednom-materialu\/","about":["V\u00fdrobky"],"wordCount":433,"articleBody":"   Ocel ozna\u010dovan\u00e1 jako 15NiCr13, pat\u0159\u00ed mezi legovan\u00e9 n\u00edzkouhl\u00edkov\u00e9 ocele, kter\u00e9 jsou s p\u0159\u00edm\u011bs\u00ed niklu a chromu. Tato kombinace prvk\u016f j\u00ed dod\u00e1v\u00e1 vysokou pevnost, tvrdost a v\u00fdbornou schopnost kalen\u00ed. Oproti b\u011b\u017en\u00fdm ocel\u00edm je v\u00fdrazn\u011b odoln\u011bj\u0161\u00ed v\u016f\u010di opot\u0159eben\u00ed a z\u00e1rove\u0148 si zachov\u00e1v\u00e1 dostate\u010dnou hou\u017eevnatost, co\u017e z n\u00ed \u010din\u00ed ide\u00e1ln\u00ed materi\u00e1l pro nam\u00e1han\u00e9 sou\u010d\u00e1sti stroj\u016f. Pro\u010d pr\u00e1v\u011b tato ocel? Pro spr\u00e1vn\u00e9 fungov\u00e1n\u00ed ve stroj\u00edrenstv\u00ed, automobilov\u00e9m pr\u016fmyslu nebo letectv\u00ed je d\u016fle\u017eit\u00e9 m\u00edt kvalitn\u00ed komponenty a t\u00edm tato ocel skute\u010dn\u011b je.M\u00e1 vysokou pevnost a je to kv\u016fli legov\u00e1n\u00ed niklem a chromem. D\u00edky tomu se ocel 15NiCr13 \u0159ad\u00ed mezi extr\u00e9mn\u011b pevn\u00e9 materi\u00e1ly. Dal\u0161\u00edm benefitem je tvrdost. Po tepeln\u00e9m zpracov\u00e1n\u00ed dosahuje vysok\u00e9 tvrdosti a t\u00edm i odolnosti v\u016f\u010di mechanick\u00e9mu opot\u0159eben\u00ed.Schopnost kalen\u00ed, umo\u017e\u0148uje dosa\u017een\u00ed tvrd\u00e9ho povrchu p\u0159i zachov\u00e1n\u00ed hou\u017eevnat\u00e9ho j\u00e1dra.T\u00edm se dost\u00e1v\u00e1me k hou\u017eevnatosti, kdy i p\u0159es vysokou tvrdost si materi\u00e1l zachov\u00e1v\u00e1 odolnost proti prask\u00e1n\u00ed a lomu. Odolnost v\u016f\u010di korozi je p\u0159irozen\u011b samoz\u0159ejmost\u00ed. P\u0159\u00edtomnost chromu zlep\u0161uje ochranu proti korozi v b\u011b\u017en\u00fdch podm\u00ednk\u00e1ch. Co j\u00ed d\u011bl\u00e1 tak silnou a stabiln\u00ed?Je to velmi jednoduch\u00e9, ale jsou to prvky, kter\u00e9 jsou v n\u00ed obsa\u017een\u00e9. Nikl zvy\u0161uje hou\u017eevnatost a odolnost v\u016f\u010di n\u00e1raz\u016fm. Chrom zase zaji\u0161\u0165uje pevnost, tvrdost a ur\u010ditou ochranu proti korozi. Ani uhl\u00edk nez\u016fst\u00e1v\u00e1 stranou a pom\u00e1h\u00e1 dos\u00e1hnout pot\u0159ebn\u00e9 tvrdosti. Mangan p\u0159isp\u00edv\u00e1 k lep\u0161\u00ed obrobitelnosti a pevnosti a i k\u0159em\u00edk svou p\u0159\u00edtomnost\u00ed zvy\u0161uje pevnost a pru\u017enost. Kde se vyu\u017e\u00edv\u00e1 D\u00edky sv\u00fdm mechanick\u00fdm vlastnostem m\u00e1 ocel 15NiCr13 \u0161irok\u00e9 vyu\u017eit\u00ed. Typicky se pou\u017e\u00edv\u00e1 v t\u011bchto oblastech: Automobilov\u00fd pr\u016fmysl \u2013 ide\u00e1ln\u00ed pro v\u00fdrobu ozuben\u00fdch kol, h\u0159\u00eddel\u00ed, \u010dep\u016f nebo lo\u017eisek, kter\u00e9 mus\u00ed zvl\u00e1dat vysok\u00e9 tlaky a t\u0159en\u00ed. Leteck\u00fd pr\u016fmysl \u2013 d\u00edly jsou vystaveny extr\u00e9mn\u00edm podm\u00ednk\u00e1m a je nutn\u00e1 kombinace pevnosti a hou\u017eevnatosti. Stroj\u00edrenstv\u00ed \u2013 v\u00fdroba n\u00e1stroj\u016f, pr\u016fmyslov\u00fdch komponent\u016f a dal\u0161\u00edch \u010d\u00e1st\u00ed vy\u017eaduj\u00edc\u00edch vysokou odolnost.V\u00fdroba ozuben\u00fdch kol \u2013 tvrdost a pevnost t\u00e9to oceli z n\u00ed d\u011blaj\u00ed ide\u00e1ln\u00ed materi\u00e1l pro p\u0159evody s vysok\u00fdm zat\u00ed\u017een\u00edm.                                                                                                                                                                                                                                                                                                                                                                                           3.4\/5 - (5 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Pevnost a odolnost v jednom materi\u00e1lu","item":"https:\/\/www.rebelion.cz\/pevnost-a-odolnost-v-jednom-materialu\/#breadcrumbitem"}]}]