"65" . "Z v\u00FDsledk\u016F plastometrick\u00FDch zkou\u0161ek proveden\u00FDch v rozsahu teplot 800 a\u017E 1200 \u00B0C a deforma\u010Dn\u00EDch rychlost\u00ED \u0159\u00E1dov\u011B 10-2 a\u017E 101 s-1 byla n\u011Bkolika metodami ur\u010Dena hodnota zd\u00E1nliv\u00E9 aktiva\u010Dn\u00ED energie p\u0159i tv\u00E1\u0159en\u00ED za tepla hrubozrnn\u00E9 slitiny na b\u00E1zi Fe \u2013 40 at. % Al v lit\u00E9m stavu, zpevn\u011Bn\u00E9 mal\u00FDmi \u010D\u00E1sticemi TiB2. V p\u0159\u00EDpad\u011B, \u017Ee k v\u00FDpo\u010Dtu byl vyu\u017Eit klasick\u00FD sinushyperbolick\u00FD vztah, zji\u0161t\u011Bn\u00E9 hodnoty zd\u00E1nliv\u00E9 aktiva\u010Dn\u00ED energie byly jen nev\u00FDrazn\u011B ovlivn\u011Bny zp\u016Fsobem v\u00FDpo\u010Dtu re\u00E1ln\u00E9 (tzn. okam\u017Eit\u00E9 \u010Di st\u0159edn\u00ED) deforma\u010Dn\u00ED rychlosti. Naopak v\u00FDpo\u010Dty zalo\u017Een\u00E9 na aplikaci zjednodu\u0161en\u00E9 mocninn\u00E9 z\u00E1vislosti mezi deforma\u010Dn\u00ED rychlost\u00ED a p\u00EDkov\u00FDm nap\u011Bt\u00EDm d\u00E1vaj\u00ED v\u00FDsledky z\u00E1sadn\u011B odli\u0161n\u00E9. Jak\u00FDmkoliv zp\u016Fsobem usnadn\u011Bn\u00E9 matematick\u00E9 zpracov\u00E1n\u00ED experiment\u00E1ln\u00EDch dat v kone\u010Dn\u00E9m d\u016Fsledku vede k nedostate\u010Dn\u011B p\u0159esn\u00E9 predikci maxim\u00E1ln\u00EDho deforma\u010Dn\u00EDho odporu dan\u00E9ho materi\u00E1lu v z\u00E1vislosti na teplotn\u011B kompenzovan\u00E9 deforma\u010Dn\u00ED rychlosti." . . "Schindler, Ivo" . "Vliv v\u00FDpo\u010Detn\u00ED metody na hodnotu aktiva\u010Dn\u00ED energie aluminidu \u017Eeleza p\u0159i tv\u00E1\u0159en\u00ED za tepla"@cs . "Vliv v\u00FDpo\u010Detn\u00ED metody na hodnotu aktiva\u010Dn\u00ED energie aluminidu \u017Eeleza p\u0159i tv\u00E1\u0159en\u00ED za tepla" . "Z v\u00FDsledk\u016F plastometrick\u00FDch zkou\u0161ek proveden\u00FDch v rozsahu teplot 800 a\u017E 1200 \u00B0C a deforma\u010Dn\u00EDch rychlost\u00ED \u0159\u00E1dov\u011B 10-2 a\u017E 101 s-1 byla n\u011Bkolika metodami ur\u010Dena hodnota zd\u00E1nliv\u00E9 aktiva\u010Dn\u00ED energie p\u0159i tv\u00E1\u0159en\u00ED za tepla hrubozrnn\u00E9 slitiny na b\u00E1zi Fe \u2013 40 at. % Al v lit\u00E9m stavu, zpevn\u011Bn\u00E9 mal\u00FDmi \u010D\u00E1sticemi TiB2. V p\u0159\u00EDpad\u011B, \u017Ee k v\u00FDpo\u010Dtu byl vyu\u017Eit klasick\u00FD sinushyperbolick\u00FD vztah, zji\u0161t\u011Bn\u00E9 hodnoty zd\u00E1nliv\u00E9 aktiva\u010Dn\u00ED energie byly jen nev\u00FDrazn\u011B ovlivn\u011Bny zp\u016Fsobem v\u00FDpo\u010Dtu re\u00E1ln\u00E9 (tzn. okam\u017Eit\u00E9 \u010Di st\u0159edn\u00ED) deforma\u010Dn\u00ED rychlosti. Naopak v\u00FDpo\u010Dty zalo\u017Een\u00E9 na aplikaci zjednodu\u0161en\u00E9 mocninn\u00E9 z\u00E1vislosti mezi deforma\u010Dn\u00ED rychlost\u00ED a p\u00EDkov\u00FDm nap\u011Bt\u00EDm d\u00E1vaj\u00ED v\u00FDsledky z\u00E1sadn\u011B odli\u0161n\u00E9. Jak\u00FDmkoliv zp\u016Fsobem usnadn\u011Bn\u00E9 matematick\u00E9 zpracov\u00E1n\u00ED experiment\u00E1ln\u00EDch dat v kone\u010Dn\u00E9m d\u016Fsledku vede k nedostate\u010Dn\u011B p\u0159esn\u00E9 predikci maxim\u00E1ln\u00EDho deforma\u010Dn\u00EDho odporu dan\u00E9ho materi\u00E1lu v z\u00E1vislosti na teplotn\u011B kompenzovan\u00E9 deforma\u010Dn\u00ED rychlosti."@cs . . "RIV/61989100:27360/12:86084482" . "Influence of the Calculation Method on the Value of Iron Aluminide Activation Energy at Hot Forming"@en . "4" . "Vliv v\u00FDpo\u010Detn\u00ED metody na hodnotu aktiva\u010Dn\u00ED energie aluminidu \u017Eeleza p\u0159i tv\u00E1\u0159en\u00ED za tepla" . . . "CZ - \u010Cesk\u00E1 republika" . "5"^^ . . . "Hutnick\u00E9 listy" . . "Influence of the Calculation Method on the Value of Iron Aluminide Activation Energy at Hot Forming"@en . "27360" . . . . "5"^^ . . "178322" . "RIV/61989100:27360/12:86084482!RIV13-GA0-27360___" . . "Cagala, Michal" . "[F961D10AF6CA]" . "0018-8069" . . "Such\u00E1nek, Pavel" . . "4"^^ . "Kawulok, Rostislav" . . . . . "maximum deformation resistance; Fe-Al alloy; Activation energy"@en . "P(ED0040/01/01), P(GAP107/10/0438), S" . "Kawulok, Petr" . . "From the values of peak stress, determined by the set of plastometric tests by axially symmetrical pressure in the temperature range from 800 to 1200 \u00B0C, and strain rates of the order of 10-2 to 101 s-1, the value of apparent activation energy Q at hot forming of coarse grained alloy based on Fe \u2013 40 at. % Al in as-cast state, strengthened by small particles of TiB2, was established by several methods. Contrary to that the calculations based on application of the simplified power dependence between the strain rate and peak stress give the results that differ by tens of percent from the results obtained by solution of the complex sinus-hyperbolic relation. The only serious procedure consists in the use of the parameters determined by partial regressions as %22trial shot%22 for final non-linear regression of several variables, ensuring objective more precise calculation of the quantity Q and of other material constants related to it."@en . . "Vliv v\u00FDpo\u010Detn\u00ED metody na hodnotu aktiva\u010Dn\u00ED energie aluminidu \u017Eeleza p\u0159i tv\u00E1\u0159en\u00ED za tepla"@cs . .