. . . "2010-01-01+01:00"^^ . . . "The acoustic emission (AE) technique was used for the study of deformation mechanisms in magnesium (Mg) alloys during different type loading. Obtained results can be used as input for the next research activity in this branch. Publishing activity was on the high level (3 Jimp, 1 D, 6x contributions on conferences). No problems were found."@en . "GPP108/10/P430" . " mechanisms" . "2012-03-30+02:00"^^ . "Projekt je zam\u011B\u0159en na z\u00EDsk\u00E1n\u00ED nov\u00FDch poznatk\u016F o vztahu mikrostruktury a deforma\u010Dn\u00EDch mechanism\u016F v ho\u0159\u010D\u00EDkov\u00FDch slitin\u00E1ch b\u011Bhem jednoos\u00E9ho (tah, tlak) a n\u00EDzko cyklov\u00E9ho nam\u00E1h\u00E1n\u00ED za pou\u017Eit\u00ED metody akustick\u00E9 emise (AE). Korelace parametr\u016F AE s disloka\u010Dn\u00EDm skluzem a dvoj\u010Dat\u011Bn\u00EDm v jednoose nam\u00E1han\u00FDch hexagon\u00E1ln\u00EDch monokrystalech usnadn\u00ED n\u00E1sledn\u00E9 studium disloka\u010Dn\u00ED dynamiky v polykrystalick\u00FDch Mg-slitin\u00E1ch (Mg-Al-Zn a Mg-Zn-Zr-(RE) syst\u00E9my, RE - prvky vz\u00E1cn\u00FDch zemin). Hlavn\u00ED d\u016Fraz je kladen na n\u00EDzko cyklov\u00E9 testy, kde deforma\u010Dn\u00ED textura ovliv\u0148uje aktivaci jednotliv\u00FDch deforma\u010Dn\u00EDch syst\u00E9mu.\u00A0 Mikrostruktura a jej\u00ED zm\u011Bny zp\u016Fsoben\u00E9 plastickou deformac\u00ED budou studovan\u00E9 rentgenovou difrakc\u00ED, skenovan\u00ED a transmisn\u00ED elektronovou mikroskopii a metodou zp\u011Btn\u011B odra\u017Een\u00FDch elektron\u016F (EBSD). Z\u00EDskan\u00E9 v\u00FDsledky p\u0159isp\u011Bj\u00ED k\u00A0pochopen\u00ED disloka\u010Dn\u00EDch proces\u016F a vzniku dvoj\u010Daten\u00ED b\u011Bhem cyklick\u00E9ho nam\u00E1h\u00E1n\u00ED. Zm\u00EDn\u011Bn\u00E9 procesy jsou velice d\u016Fle\u017Eit\u00E9, proto\u017Ee v\u00FDrazn\u011B ovliv\u0148uj\u00ED\u00A0 \u00FAnavovou \u017Eivotnost ho\u0159\u010D\u00EDkov\u00FDch slitin." . "http://www.isvav.cz/projectDetail.do?rowId=GPP108/10/P430"^^ . . . "An Acoustic Emission Study of Deformation Mechanisms in Novel Magnesium Alloys at Uniaxial and Low Cyclic Loading"@en . "0"^^ . "2014-01-27+01:00"^^ . " magnesium" . "1"^^ . " cyclic" . "0"^^ . "4"^^ . . "2012-12-31+01:00"^^ . "4"^^ . . . . . " loading" . . "Pomoc\u00ED akustick\u00E9 emise byly z\u00EDsk\u00E1ny nov\u00E9 poznatky o vztahu mikrostruktury Mg slitin a deforma\u010Dn\u00EDch mechanism\u016F, ke kter\u00FDm doch\u00E1z\u00ED p\u0159i r\u016Fzn\u00E9m zat\u011B\u017Eov\u00E1n\u00ED. Publika\u010Dn\u00ED aktivita byla na vysok\u00E9 \u00FArovni (3 Jimp, 1 D, 6 presentac\u00ED na konferenc\u00EDch). Z\u00EDskan\u00E9 v\u00FDsledy jsou cenn\u00FDm vstupem pro dal\u0161\u00ED v\u00FDzkum v oboru. Nedostatky v dodr\u017Eov\u00E1n\u00ED pravidel nebyly zji\u0161t\u011Bny."@cs . "deformation" . . "deformation; mechanisms; magnesium; alloys; cyclic; loading; acoustic; emission"@en . " acoustic" . "Studium deforma\u010Dn\u00EDch mechanism\u016F v nov\u00FDch ho\u0159\u010D\u00EDkov\u00FDch slitin p\u0159i jednoos\u00E9m a n\u00EDzko cyklov\u00E9m nam\u00E1han\u00ED metodou akustick\u00E9 emise" . . . . " alloys" . . . . "The project is focused on the study of deformation mechanisms in magnesium (Mg) alloys during tension, compression and low cyclic loading by the acoustic emission (AE) technique. Correlation of AE parameters with dislocation slip and twinning in deformed single crystals with hexagonal structure will allow the study of dislocation dynamics in polycrystalline Mg-alloys (Mg-Al-Zn and Mg-Zn-Zr-(RE) systems, RE \u2013 rare earth elements). The main attention will be paid to low cycle tests, where deformation texture of extruded Mg-alloys influences the activation of various deformation mechanisms. The material microstructure and its changes induced by plastic deformation will be studied by X-ray diffraction, scanning and transmission electron microscopy and by electron backscattering diffraction. Obtained results will contribute to understanding of dislocation processes and twin activation (especially of twinning-detwinning process) during cyclic tests. The above processes are of great importance because they influence significantly fatigue life of Mg-alloys."@en .