Theoretical Calculation of the Dendrite Non-Homogeneity in Magnesium-Zinc Alloys.
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Theoretical Calculation of the Dendrite Non-Homogeneity in Magnesium-Zinc Alloys. by Canada. Dept. of Energy, Mines and Resources. Mines Branch. Physical Metallurgy Division.

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Published by s.n in S.l .
Written in English


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Edition Notes

1

SeriesCanada Mines Branch Research Report -- 203
ContributionsCiach, Ryszard.
ID Numbers
Open LibraryOL21894468M

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Based on synchrotron X-ray tomography and EBSD techniques, it was found that magnesium alloy dendrite exhibits a typical 3-D growth pattern with eighteen-primary branches, of which six grow along 〈 11 2 ¯ 0 〉 in the basal plane and the other twelve along 〈 11 2 ¯ 3 〉 in non-basal by: 7. Growth pattern and orientation selection of magnesium alloy dendrite: From 3-D experimental characterization to theoretical atomistic simulation September DOI: / The mechanical properties of AlSi7Mg alloys are known to be improved by heat treatment. By OM analyses and tension test, the effects of secondary dendrite arm spacing (SDAS) on tensile properties of AlSi7Mg alloys were investigated by using step-shaped castings. Finally, a calculation model of SDAS-tensile properties was by: 2. Abstract. The dendrite growth directions in fcc aluminum-zinc alloys have been measured by electron backscattered diffraction (EBSD) as a function of the zinc concentration,c specimens produced by directional or Bridgman solidification, 〈〉 dendrites were observed up to 25 wt pct Zn, whereas, above 60 wt pct, the dendrite growth direction was clearly 〈〉.Cited by:

In this study, the effect of SiC nanoparticles on α-Mg dendrite evolution in a MgZn-7Al (wt.%) alloy was investigated through 4D (three dimensions plus time) synchrotron tomographic. The calculation gives a constant value λ 2 V of 8×10 −7 m s − Theoretical predictions are in reasonable agreement with experimental results. In peritectic reaction, the dissolution rate of γ-Fe dendrite arms varied from to μm/s, as the growth velocity increased from 1 to μm/ by: Dendrite orientation selection in magnesium-based alloys. January ; continuous variation of dendrite orientation in alloy materials. Theoretical phase diagram obtained from the choice of. Effect of magnesium on strength and microstructure of Aluminium Copper Magnesium Alloy Girisha.H.N, Abstract: Cast Al – Cu- Mg alloys have widely used in aircraft, aerospace, ships and boat making, industrial and architectural applications for their good mechanical properties, high strength-to File Size: KB.

  Predictions of secondary dendrite arm spacing (SDAS) for multicomponent aluminum alloys using a dendrite ripening model are compared with experimental observations. For six of the seven alloys studied, the predicted SDAS was within 20 pct of the measured SDAS. It was found that the final SDAS was dependent upon both the solidification time and the solute profile of the solidifying by:   Dendritic morphology was investigated in a directionally solidified magnesium-zinc alloy using synchrotron X-ray tomography and electron backscattered diffraction. Unexpectedly, primary dendrites grew along $$ {\langle}21\overline{3}1 {\rangle}$$, rather than the previously reported $${\langle} 11\overline{2} 0{\rangle} $$ and $${\langle} 22\overline{4}5 {\rangle}$$ by: 6. The dendrite growth directions in fcc aluminum-zinc alloys have been measured by electron backscattered diffraction (EBSD) as a function of the zinc concentration,c o. MEASUREMENT OF DENDRITE GROWTH ON Al-Ni ALLOYS IN REDUCED GRAVITY Roman Lengsdorf(1,2), Peter Galenko(1,2), Dieter M. Herlach(1) (1)Institut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt, Linder Höhe, Köln, Ger- many, Email: [email protected] (2)Ruhr-Universität Bochum, Institut für Festkörperphysik, Universitätsstraße .