Property

Symbol

Unit

Value

Reflexion coefficient

Rc

0.6

Steel absorptivity

Ac

m1

800

Eutectoid temperature

Ac1

K

996

Austenitization temperature

Ac3

K

1063.15

Austenite grain size (assumed)

g

µm

Activation energy of carbon diffusion in ferrite

Q

KJ/mol

10

Pre-exponential for diffusion of carbon

D0

m2/s

80

Gas constant

R

J/mol・K

6.105

Steel carbon content

C

0.34%

Austenite carbon content

Ce

0.8%

Ferrite carbon content

Cf

0.01%

Critical value of carbon content

Cc

0.05%

Volume fraction of pearlite colonies

fi

0.5375