At elevated temperatures iron forms a face centered cubic crystal structure. Calculate the density of iron in this form, assuming the atomic radius is 1.24 Angstroms. Calculate the atomic packing factor of FCC iron. Calculate the radius of Aluminum in this structure. In the 111 direction, find the linear density, the linear packing fraction and the repeat distance.
Iron changes crystal structure as temperature changes.
Describe these changes. From the following information and graphs for ductile cast iron calculate a. The tensile strength d. Labeling the graphs would be helpful, in showing where you obtained your numbers. The difference between a ductile and a brittle fracture b.