Autor: Čapek, J. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Twinning Evolution as a Function of Loading Direction in Magnesium
Autorzy:: Čapek, J.
Stráská, J.
Clausen, B.
Máthis, K.
Powiązania:: https://bibliotekanauki.pl/articles/1402149.pdf
Data publikacji:: 2015-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.05.Bx
61.05.fm
61.72.Mm
Opis:: The twinning activity in random textured cast magnesium during monotonic, room temperature tension and compression tests was monitored by neutron diffraction. Decrease of integrated intensity which characterizes the twinned volume fraction of selected reflections was compared to its Schmid factor. The comparison shows that twinned fraction correlates with the maximum value of the Schmid factor with high precision during tensile test and with the average value of the Schmid factor during compression test.
Źródło:: Acta Physica Polonica A; 2015, 128, 4; 762-764
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Alpha Variant Selection Determined from Grain Misorientations in Ti-6Al-7Nb Alloy with a Duplex Microstructure
Autorzy:: Harcuba, P.
Václavová, K.
Čapek, J.
Stráský, J.
Janeček, M.
Janovská, M.
Powiązania:: https://bibliotekanauki.pl/articles/1402083.pdf
Data publikacji:: 2015-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.66.Dk
61.72.Mm
68.37.-d
Opis:: Titanium occurs in two structures; a high temperature body-centered cubic structure which is known as β phase and an ambient temperature α phase which has the hexagonal closed-packed structure. In the present study a biomedical Ti-6Al-7Nb alloy was investigated. The so-called duplex structure consisting of α lamellae and equiaxed primary α-grains was prepared by a thermal treatment. The α lamellae are created during cooling from a β-field according to the Burgers relation. This relation allows the formation of the α lamellae with different crystallographic orientations - so-called variants. The preferential misorientation between α lamellae was studied by a detailed electron backscattered diffraction analysis. The misorientation of grains in the duplex structure was modelled by a sum of random Mackenzie distribution and Gaussian peaks related to the preferred misorientations according to the Burgers relation. The preferred misorientations based on the Burgers relationship were identified in the biomedical Ti-6Al-7Nb alloy with duplex structure. It is confirmed that the variant selection of α lamellae is not random.
Źródło:: Acta Physica Polonica A; 2015, 128, 4; 570-573
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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