The effect of cooling rate and composition on the secondary dendrite arm spacing during solidification. Part I: Al-Cu-Si alloys
- 1 May 2001
- journal article
- research article
- Published by Taylor & Francis in International Journal of Cast Metals Research
- Vol. 13 (6) , 337-342
- https://doi.org/10.1080/13640461.2001.11819415
Abstract
Al-Cu-Si alloys of six different compositions have been solidified by means of the Differential Thermal Analysis (DTA) method. On the basis of the measurement results it is stated that the secondary dendrite arm spacing (λ2,f) can be determined with suitable accuracy as a function of the composition (C0,Cu; C0,si) using the local solidification time (tf) or the cooling rate (TL) by means of the following equations: λ2,f= 34.9 × C−0.3330,Cu × C0.1450,Si × (tf)0.208; λ2,f = 77.09 × C−0.19890.Cu × C−0.0780,Si × (ṪL−0.252.Keywords
This publication has 7 references indexed in Scilit:
- Ternary restricted-equilibrium phase diagrams—II. Practical application: Aluminium-rich corner of the AlCuMg systemActa Metallurgica et Materialia, 1990
- The Effect of Temperature Gradient and Primary Arm Tip Velocity on Secondary Dendrite Arm Spacing at Steady-state Conditions SolidificationCast Metals, 1988
- Variation of dendrite arm spacing in Al-rich Zn-Al off-eutectic alloysJournal of Materials Science, 1988
- Coarsening and Microsegregation during Solidification of Ni-AI-Cr Dendritic MonocrystalsMetallurgical Transactions A, 1982
- Coarsening kinetics during solidification of Ni-Al-Ta dendritic monocrystalsMetallurgical Transactions A, 1980
- The dendrite arm spacings of aluminum-copper alloys solidified under steady-state conditionsMetallurgical Transactions A, 1975
- Dendritic growthActa Metallurgica, 1962