Eutectic 
(oHALCu) 
Trunk | te 
fo | 
Y N. } 
EE 
FU ms 
Lo Fig. 7: Definition of the determined structure parameters 
dges were drawn 
Dy invert, binary 
ed of which arm : — 
d the secondary 100 pn | 200 pm ; 
picture [4]. The ZZ 
a., Binary Edit: Draw, v = 8x10* m/s b., Interactive: Distance, v =5x10” m/s 
Fig. 8: Measurement of the primary and tertiary arm spacing [5] 
The A, A, and A; values were calculated as follows: 
=A [um] 
M=L/N [um] 
M=L/N [pm] 
where A: is the area of the primary dendrite arms 
A,: is the primary dendrite arm spacing 
A, is the secondary dendrite arm spacing 
As: is the tertiary dendrite arm spacing 
L: is the length of the range mark 
N: is the number of measured secondary or tertiary arms 
X 
C., 
33