Sr. No.

Parameter

Description

Value

1

TL

Liquidus temperature

2128 K

2

CoZr

Initial concentration of Zr in alloy

0.65 wt %

3

Ri

Initial value of tip radius

0.001 mm

4

Vi

Initial value of dendrite tip velocity

2 mm/sec

5

Do

Proportionality constant

0.492 mm2/sec

6

ao

Length scale related to interatomic distance

0.000005 mm

7

Q

Activation energy for diffusion

67,700 J∙mol−1

8

Γ

Gibbs Thomson Coefficient

1.90 × 10−4 (K mm)

9

Rg

Gas Constant

8.314 (J∙mol−1∙K−1)

10

G

Thermal Gradient

100 K/mm

11

Hf

Heat of fusion

21,000 (J∙mol−1)

12

C

Constant related with unit thermal undercooling θt

1