A 0.505-in.-diameter metal bar with a 2-in. gage length l0 is subjected to a tensile test. The following measurements are made in the plastic region:
Force (lb) | Change in Gage length (in.) (Δl ) | Diameter (in.) |
27,500 | 0.2103 | 0.4800 |
27,000 | 0.4428 | 0.4566 |
25,700 | 0.6997 | 0.4343 |
Determine the strain-hardening exponent for the metal. Is the metal most likely to be FCC, BCC, or HCP? Explain.
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