The Effect of Temperature Gradient and Primary Arm Tip Velocity on Secondary Dendrite Arm Spacing at Steady-state Conditions Solidification |
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| Authors: | A Roósz |
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| Affiliation: | At the time this work was carried out the author was attached to the Max-Planck Instut für Metallforschung, Institut für Werkstoffwissenshaften, Stuttgart, Federal Republic of Germany. The author is now in the Department of Physical Metallurgy, University for Heavy Industry, Miskolc, Hungary. |
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| Abstract: | A numerical procedure is presented by which the coarsening of secondary dendrite arms, during steady state solidification can be simulated. The numerical results are compared with experimental data obtained for binary Al-Cu alloys. Very good agreement of the measurements with the theoretical predictions is obtained for the spacing of secondary dendrite arms during solidification. Based on these results, a generally applicable function could be established for finally secondary dendrite arm spacing as a function of alloy composition, temperature gradient and primary arm tip velocity. |
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| Keywords: | numerical modeling heat generation heat transfer reactive joining finite difference method |
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