The following data were obtained when a cold-worked metallic material was annealed:
(a) Estimate the recovery, recrystallization, and grain growth temperatures;
(b) recommend a suitable temperature for obtaining a high-strength, highelectrical conductivity wire;
(c) recommend a suitable temperature for a hot-working process; and
(d) estimate the melting temperature of the alloy.
Annealing Temperature Size (°C) | Residual Stresses (psi) | Tensile Strength (psi) | Grain Size (in.) |
250 | 21,000 | 52,000 | 0.0030 |
275 | 21,000 | 52,000 | 0.0030 |
300 | 5000 | 52,000 | 0.0030 |
325 | 0 | 52,000 | 0.0030 |
350 | 0 | 34,000 | 0.0010 |
375 | 0 | 30,000 | 0.0010 |
400 | 0 | 27,000 | 0.0035 |
425 | 0 | 25,000 | 0.0072 |
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