"In the course of homogenizing annealing of aluminum alloys being cast continually or semi-continually it appears that chemical inhomogeneity takes off within separate dendritic cells (crystal segregation). The alloys of Al-Cu-Mg, chiefly duralumins AlCu4Mg, AlCu4Mg and AlCu4MgMn, reaching significant com-pactness after hardening by heat processing (Rm a\u017E 530 MPa). Maximal solubility of copper in stiff solution of aluminium is under steady conditions 5.7 hm.%Cu by temperature of eutectic reaction 548.2\u00B0C. The alloys of AlCuMg reach significant compactness after hardening; natural senescence is their advantage. Next alloyed element in industrial alloys of Al-Cu-Mg is Mn, which raises the compactness. In the alloy AlCu4Mg occur primarily a binary eutectic alfa + CuAl2 and small amount of ternary eutectics alfa + CuAl2 + Cu2Mg2Al5, further Mg2Si, FeAl3, AlFeMnSi, AlCuFeMn etc."@en . "Hodnocen\u00ED vlivu teploty a doby homogeniza\u010Dn\u00EDho \u017E\u00EDhan\u00ED slitiny AlCu4MgMn z hlediska mikrostruktury, obrazov\u00E9 anal\u00FDzy a metody EDX"@cs . "Homogenizace je definovan\u00E1 jako zp\u016Fsob tepeln\u00E9ho zpracov\u00E1n\u00ED, kter\u00E9 poz\u016Fst\u00E1v\u00E1 z v\u00FDdr\u017Ee na vysok\u00E9 teplot\u011B v bl\u00EDzkosti likvidu (cca 0,7 - 0,8 teploty taven\u00ED) za \u00FA\u010Delem eliminace chemick\u00E9 nehomogenity dif\u00FAzn\u00EDmi procesy. P\u0159\u00ED\u010Dinou vzniku krystalov\u00E9 segregace je selektivn\u00ED tuhnut\u00ED krystalu p\u0159i postupn\u00E9 zm\u011Bn\u011B slo\u017Een\u00ED tuh\u00E9 f\u00E1ze. Po dosa\u017Een\u00ED ur\u010Dit\u00E9ho podchlazen\u00ED p\u0159i ochlazov\u00E1n\u00ED taveniny za\u010D\u00EDnaj\u00ED vznikat a r\u016Fst z\u00E1rodky v souladu se v\u0161eobecn\u00FDmi z\u00E1kony krystalizace. Ka\u017Ed\u00E1 ztuhl\u00E1 vrstva m\u00E1 jin\u00E9 chemick\u00E9 slo\u017Een\u00ED. Prvn\u00ED \u010D\u00E1st tuh\u00E9 f\u00E1ze n\u00EDzkou koncentraci p\u0159\u00EDsadov\u00E9ho prvku, posledn\u00ED, naopak, velmi vysokou. N\u00E1chylnost slitin ke krystalov\u00E9 segregaci je t\u00EDm v\u011Bt\u0161\u00ED, \u010D\u00EDm v\u011Bt\u0161\u00ED je teplotn\u00ED interval tuhnut\u00ED slitin a vodorovn\u00E1 vzd\u00E1lenost mezi \u010Darami likvidu a solidu. Krystalov\u00E1 segregace bude tak\u00E9 nar\u016Fstat se zvy\u0161uj\u00EDc\u00EDm se obsahem leguj\u00EDc\u00EDch prvk\u016F, co\u017E u t\u011Bchto experiment\u00E1ln\u00EDch slitin nast\u00E1v\u00E1, jeliko\u017E obsahuj\u00EDc\u00ED 6 - 9% leguj\u00EDc\u00EDch prvk\u016F. Krystalovou segregaci lze odstranit difuz\u00ED, pro kterou je pot\u0159eba vytvo\u0159it podm\u00EDnky n\u00E1sledn\u00FDm homogeniza\u010Dn\u00EDm \u017E\u00EDh\u00E1n\u00EDm." . "139463" . "13420" . "Weiss, Viktorie" . "Hodnocen\u00ED vlivu teploty a doby homogeniza\u010Dn\u00EDho \u017E\u00EDhan\u00ED slitiny AlCu4MgMn z hlediska mikrostruktury, obrazov\u00E9 anal\u00FDzy a metody EDX" . "1211-4162" . . "Hodnocen\u00ED vlivu teploty a doby homogeniza\u010Dn\u00EDho \u017E\u00EDhan\u00ED slitiny AlCu4MgMn z hlediska mikrostruktury, obrazov\u00E9 anal\u00FDzy a metody EDX"@cs . . . "CZ - \u010Cesk\u00E1 republika" . . "Hodnocen\u00ED vlivu teploty a doby homogeniza\u010Dn\u00EDho \u017E\u00EDhan\u00ED slitiny AlCu4MgMn z hlediska mikrostruktury, obrazov\u00E9 anal\u00FDzy a metody EDX" . "Homogenizing annealing, AlCu4MgMn alloy, crystal segregation, EDX analysis"@en . "5-6" . "[7CA8154D704D]" . "8"^^ . "RIV/44555601:13420/12:43884581!RIV13-MSM-13420___" . "1"^^ . . . "Assessment of the effect of temperature and annealing time homogenisation AlCu4MgMn alloys in terms of microstructure image analysis methods and EDX"@en . . "1"^^ . . . "Assessment of the effect of temperature and annealing time homogenisation AlCu4MgMn alloys in terms of microstructure image analysis methods and EDX"@en . "RIV/44555601:13420/12:43884581" . "XVII" . "Stroj\u00EDrensk\u00E1 technologie" . . . . "S" . "Homogenizace je definovan\u00E1 jako zp\u016Fsob tepeln\u00E9ho zpracov\u00E1n\u00ED, kter\u00E9 poz\u016Fst\u00E1v\u00E1 z v\u00FDdr\u017Ee na vysok\u00E9 teplot\u011B v bl\u00EDzkosti likvidu (cca 0,7 - 0,8 teploty taven\u00ED) za \u00FA\u010Delem eliminace chemick\u00E9 nehomogenity dif\u00FAzn\u00EDmi procesy. P\u0159\u00ED\u010Dinou vzniku krystalov\u00E9 segregace je selektivn\u00ED tuhnut\u00ED krystalu p\u0159i postupn\u00E9 zm\u011Bn\u011B slo\u017Een\u00ED tuh\u00E9 f\u00E1ze. Po dosa\u017Een\u00ED ur\u010Dit\u00E9ho podchlazen\u00ED p\u0159i ochlazov\u00E1n\u00ED taveniny za\u010D\u00EDnaj\u00ED vznikat a r\u016Fst z\u00E1rodky v souladu se v\u0161eobecn\u00FDmi z\u00E1kony krystalizace. Ka\u017Ed\u00E1 ztuhl\u00E1 vrstva m\u00E1 jin\u00E9 chemick\u00E9 slo\u017Een\u00ED. Prvn\u00ED \u010D\u00E1st tuh\u00E9 f\u00E1ze n\u00EDzkou koncentraci p\u0159\u00EDsadov\u00E9ho prvku, posledn\u00ED, naopak, velmi vysokou. N\u00E1chylnost slitin ke krystalov\u00E9 segregaci je t\u00EDm v\u011Bt\u0161\u00ED, \u010D\u00EDm v\u011Bt\u0161\u00ED je teplotn\u00ED interval tuhnut\u00ED slitin a vodorovn\u00E1 vzd\u00E1lenost mezi \u010Darami likvidu a solidu. Krystalov\u00E1 segregace bude tak\u00E9 nar\u016Fstat se zvy\u0161uj\u00EDc\u00EDm se obsahem leguj\u00EDc\u00EDch prvk\u016F, co\u017E u t\u011Bchto experiment\u00E1ln\u00EDch slitin nast\u00E1v\u00E1, jeliko\u017E obsahuj\u00EDc\u00ED 6 - 9% leguj\u00EDc\u00EDch prvk\u016F. Krystalovou segregaci lze odstranit difuz\u00ED, pro kterou je pot\u0159eba vytvo\u0159it podm\u00EDnky n\u00E1sledn\u00FDm homogeniza\u010Dn\u00EDm \u017E\u00EDh\u00E1n\u00EDm."@cs . . . . .