Metallurgical Engineering > GATE 2025 > Diffusion
The following are the activation energies for diffusion of carbon and iron at 773 K in polycrystalline BCC iron:
P= Activation energy for diffusion of carbon in BCC iron through the lattice
Q= Activation energy for diffusion of iron in BCC iron through the lattice
R= Activation energy for diffusion of iron in BCC iron along the grain boundary
Which one of the following statements is CORRECT?
P= Activation energy for diffusion of carbon in BCC iron through the lattice
Q= Activation energy for diffusion of iron in BCC iron through the lattice
R= Activation energy for diffusion of iron in BCC iron along the grain boundary
Which one of the following statements is CORRECT?
Correct : a
Similar Questions
During carburization of a steel at 950 °C, carbon concentration is measured as 0.8 wt.% at a depth of 0.3 mm after one hour. The time required to get the same c...
For self-diffusion in polycrystalline copper with a lattice diffusion coefficient DL, grain boundary diffusion coefficient DGB, and surface diffusion coefficien...
The concentration C of a solute (in units of atoms-mm3) in a solid along x direction (for x>0) follows the expression C=a1x2+a2x where x is in mm, a1 and a2 are...
Total Unique Visitors
Loading......