"Vliv technologick\u00FDch parametr\u016F na strukturn\u00ED a tvarov\u011B pam\u011B\u0165ov\u00E9 charakteristiky slitin Ni-Ti" . "METAL 2006, 15. mezin\u00E1rodn\u00ED konference metalurgie a materi\u00E1l\u016F" . "80-86840-18-2" . "Syst\u00E9m Ni-Ti je zalo\u017Een na ekviatom\u00E1rn\u00ED intermetalick\u00E9 slou\u010Denin\u011B niklu a titanu. Slitiny na b\u00E1zi Ni-Ti jsou velice stabiln\u00ED a korozn\u011B dob\u0159e odoln\u00E9. Nicm\u00E9n\u011B p\u0159\u00EDprava t\u011Bchto slitin je velmi obt\u00ED\u017En\u00E1 z d\u016Fvodu vysok\u00E9 reaktivity titanu. Mechanick\u00E9 i tvarov\u011B pam\u011B\u0165ov\u00E9 vlastnosti t\u011Bchto slitin jsou v prv\u00E9 \u0159ad\u011B ovliv\u0148ov\u00E1ny mno\u017Estv\u00EDm ne\u010Distot, jako jsou O2, N2, H2, C, atd. Obsah plyn\u016F ve v\u00FDsledn\u00E9 slitin\u011B z\u00E1vis\u00ED zejm\u00E9na na pou\u017Eit\u00E9 technologii p\u0159\u00EDpravy. Z tohoto d\u016Fvodu musej\u00ED b\u00FDt v\u0161echny procesy p\u0159\u00EDpravy realizov\u00E1ny ve vakuu, p\u0159\u00EDpadn\u011B v inertn\u00EDch atmosf\u00E9r\u00E1ch. P\u0159i pou\u017Eit\u00ED plazmov\u00E9ho taven\u00ED je taven\u00FD materi\u00E1l um\u00EDst\u011Bn do m\u011Bd\u011Bn\u00E9, vodou chlazen\u00E9 lodi\u010Dky. Tato je un\u00E1\u0161ena pod plazmov\u00FDm ho\u0159\u00E1kem. Jako plazmotvorn\u00E9ho plynu je pou\u017E\u00EDv\u00E1no argonu. Pro taven\u00ED je nutno pou\u017E\u00EDvat co nej\u010Dist\u0161\u00EDho dostupn\u00E9ho argonu z d\u016Fvodu vysok\u00E9 afinity titany ke kysl\u00EDku. P\u0159i t\u00E9to metod\u011B jsou dosahov\u00E1ny teploty okolo 6500 K. Slitiny p\u0159ipraven\u00E1 plazmov\u00FDm taven\u00EDm jsou zna\u010Dn\u011B nehomogenn\u00ED. Je nutno prov\u00E9st homogenizaci. Chemick\u00E9 homogenity m\u016F\u017Ee b\u00FDt dos"@cs . "2"^^ . . "Vliv technologick\u00FDch parametr\u016F na strukturn\u00ED a tvarov\u011B pam\u011B\u0165ov\u00E9 charakteristiky slitin Ni-Ti"@cs . "Vliv technologick\u00FDch parametr\u016F na strukturn\u00ED a tvarov\u011B pam\u011B\u0165ov\u00E9 charakteristiky slitin Ni-Ti"@cs . "Kursa, Miroslav" . "Syst\u00E9m Ni-Ti je zalo\u017Een na ekviatom\u00E1rn\u00ED intermetalick\u00E9 slou\u010Denin\u011B niklu a titanu. Slitiny na b\u00E1zi Ni-Ti jsou velice stabiln\u00ED a korozn\u011B dob\u0159e odoln\u00E9. Nicm\u00E9n\u011B p\u0159\u00EDprava t\u011Bchto slitin je velmi obt\u00ED\u017En\u00E1 z d\u016Fvodu vysok\u00E9 reaktivity titanu. Mechanick\u00E9 i tvarov\u011B pam\u011B\u0165ov\u00E9 vlastnosti t\u011Bchto slitin jsou v prv\u00E9 \u0159ad\u011B ovliv\u0148ov\u00E1ny mno\u017Estv\u00EDm ne\u010Distot, jako jsou O2, N2, H2, C, atd. Obsah plyn\u016F ve v\u00FDsledn\u00E9 slitin\u011B z\u00E1vis\u00ED zejm\u00E9na na pou\u017Eit\u00E9 technologii p\u0159\u00EDpravy. Z tohoto d\u016Fvodu musej\u00ED b\u00FDt v\u0161echny procesy p\u0159\u00EDpravy realizov\u00E1ny ve vakuu, p\u0159\u00EDpadn\u011B v inertn\u00EDch atmosf\u00E9r\u00E1ch. P\u0159i pou\u017Eit\u00ED plazmov\u00E9ho taven\u00ED je taven\u00FD materi\u00E1l um\u00EDst\u011Bn do m\u011Bd\u011Bn\u00E9, vodou chlazen\u00E9 lodi\u010Dky. Tato je un\u00E1\u0161ena pod plazmov\u00FDm ho\u0159\u00E1kem. Jako plazmotvorn\u00E9ho plynu je pou\u017E\u00EDv\u00E1no argonu. Pro taven\u00ED je nutno pou\u017E\u00EDvat co nej\u010Dist\u0161\u00EDho dostupn\u00E9ho argonu z d\u016Fvodu vysok\u00E9 afinity titany ke kysl\u00EDku. P\u0159i t\u00E9to metod\u011B jsou dosahov\u00E1ny teploty okolo 6500 K. Slitiny p\u0159ipraven\u00E1 plazmov\u00FDm taven\u00EDm jsou zna\u010Dn\u011B nehomogenn\u00ED. Je nutno prov\u00E9st homogenizaci. Chemick\u00E9 homogenity m\u016F\u017Ee b\u00FDt dos" . "System Ni-Ti is based on equiatomic compound of nickel and titanium. Ni-Ti based alloys are highly stable and resistant to corrosion. However, production of these alloys is very difficult due to high reactivity of titanium. Mechanical and shape memory properties of these alloys are in the first place influenced by contents of admixture elements, such as O2, N2, H2, C, etc. Contents of gases in the final material depends in great extent on the used technology of melting. For this reason all the melting processes (plasma, induction, arc melting) must be made in vacuum or under inert atmospheres. At use plasma melting, material is placed into copper water-cooled mold. This is drifted by bolt under plasma burner. Argon is used as plasma forming gas. For the melting as such it is necessary to use the cleanest available argon due to high affinity of titanium to oxygen. Plasma temperature achieves at this method of melting 6500 K. Chemical homogeneity can be achieved at vacuum induction melting. Material of"@en . . . . "Shape memory; martensite; austenite"@en . "2"^^ . "506814" . . . "Szurman, Ivo" . "RIV/61989100:27360/06:00014323" . . "[D25C91EA6E16]" . "88-88" . . "Vliv technologick\u00FDch parametr\u016F na strukturn\u00ED a tvarov\u011B pam\u011B\u0165ov\u00E9 charakteristiky slitin Ni-Ti" . "Z(MSM6198910013)" . "Ostrava" . "TANGER, spol. s r.o." . "Influence of technologic parameters on structural and shape memory characteristics of Ni-Ti alloys"@en . . . "8"^^ . . "RIV/61989100:27360/06:00014323!RIV07-MSM-27360___" . "Influence of technologic parameters on structural and shape memory characteristics of Ni-Ti alloys"@en . . . . "27360" . . .