A 1.5-cm-diameter metal bar with a 3-cm gage length (l0) is subjected to a tensile test....

A 1.5-cm-diameter metal bar with a 3-cm gage length (l₀) is subjected to a tensile test. The following measurements are made:

Determine the strain-hardening coefficient for the metal. Is the metal most likely to be FCC, BCC, or HCP? Explain.