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Eutectic solidification of Al-Cu alloys influenced by convection |
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| Authors: | N V Stoichev S B Yaneva L L Regel and I V Videnskiy |
| Institution: | * Institute for Metal Science and Technology, Bulgarian Academy of Sciences, 1574, Sofia, Bulgaria ** Space Research Institute, Academy of Sciences of the U.S.S.R., 117810, Moscow, U.S.S.R. |
| Abstract: | Directional solidification of eutectic Al-Cu alloys has been studied to demonstrate the influence of both impurity concentration and convective conditions. The λ/R relations show that higher iron concentration and intensive stirring coarsen the microstructure. The formation and growth of new iron-containing phases at the solidification front restrict impurity influence. Kinetic data follow a dependence λ.Rn=const with n-value close to 0,5. |
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