Answer:
a)1.404 E-10 m^2/s
b)1.438 E-12 m^2/s
Explanation:
Diffusion Coefficients can be calculated at different temperatures taking into account the energy of the diffusive process, remember that this process takes place in the interstices of the solid, and gets with higher temperatures due to the higher kinetic energy of the particles.
[tex]D=D_{o} *exp(-Q/RT)[/tex]
a) For α-iron (BCC)
[tex]D=1.10*10^{-6} m^{2}/s *exp(-80.0kJ/mol/8.314*10^{-3}kJ/mol*k*1073.15K)= 1.404*10^{-10} m^{2}/s [/tex]
b) For γ-iron (FCC)
[tex]D=2.30*10^{-5} m^{2}/s *exp(-148.0kJ/mol/8.314*10^{-3}kJ/mol*k*1073.15K)= 1.438*10^{-12} m^{2}/s [/tex]
The diffusion coefficient for the carbon interfdiffusion in both the iron BCC and the iron FCC at 800 degrees C is [tex]1.404 E-10 m^2/s[/tex] and [tex]1.438 E-12 m^2/s[/tex].
The diffusion coefficient is a preoperationally constant between the molecular flux to the molecular fusion. It is a gradient in the concertation of the species. It refers to the flicks law. Has a formula, of : [tex]dM = −D grad c dF dt.[/tex]
The Mass dm fusing in time dt and by the surface dF normal to the diffusion direction of is proportion to gradient C.
Find out more information about the diffusion coefficients.
brainly.com/question/15125924.
