For part B, we were given this equation to use:
3. a) In your own words,...
3. a) In your own words, explain what is "heat Treatment" and why is it a very important processing operation? b) Ti alloys used in hip implants and aerospace components are diffused with Non the surface (just like the example discussed in class where C was diffused into steel for best properties) to obtain the best wear resistance. The diffusion coefficient varies with composition, but for this problem, it can be taken to be 6.1 x 10-9 m2/s. The surface concentration is maintained at 1.8%N, calculate the time necessary to increase the concentration of nitrogen to 0.56% at a distance of 0.5 mm below the surface. Assume the initial nitrogen content in the alloy is 0. 13 Points