Problem 5. Using the giving table to calculate the diffusion for magnesium in aluminum at 400C. Diffusing Species A Tabulation of Diffusion Data Activation Energy Qu Host Metal D. (m/s) kimol kcal/mol Vlatom a-Fe 2.0 x 10-4 241 57.5 (BCC) 2.49 y-Fe 5.0 x 10-5 284 67.9 2.94 (FCC) Fe Fe a-Fe 6.2 x 10-7 80 19.2 0.83 Calculated Values TIC) D(m/s) 500 1.1 x 10-20 900 3.9 x 10-15 900 1.1 X 10-17 1100 7.8 x 10-16 500 2.3 x 10-12 900 1.6 X 10-10 900 9.2 x 10-12 1100 7.0 X 10-11 500 4.4 x 10-19 500 4.3 x 10- 500 4.1 x 10-14 500 4.8 x 10-14 500 1.8 x 10-13 500 1.5 x 10-22 y-Fe 1.0 x 10-5 136 32.4 1.40 $0.4 Cu Cu 45.6 Cu Zn AI Cu Mg Cu 332222 7.8 x 10-5 3.4 x 10-5 1.7 x 10-4 6.5 x 10-5 1.2 x 10-4 2.7 x 10-5 211 191 142 135 131 255 34.0 32.3 31.2 61.0 2.18 1.98 1.47 1.40 1.35 2.64