σy = σo + kyd-1/2
Which of the following terms in the equation represent material constants--values that could be looked up for a given material (select all that apply)?
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| Label | Solute | Solvent | Act. En. (Q) (kJ/mol) |
D0 (cm2/sec) |
D (cm2/sec) | |
| 500 °C | 1000 °C | |||||
| A | C | Fe (BCC) | 84 | 0.008 | 1.8e-8 | 3e-6 |
| B | N | Fe (BCC) | 75 | 0.007 | 6e-8 | 5.7e-6 |
| C | Ni | Fe (BCC) | 276 | 0.5 | 1e-19 | 2.5e-12 |
| D | Co | Fe (BCC) | 226 | 0.2 | 1.2e-16 | 9e-11 |
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If the solution is held at room temperature (25°C), what is the maximum composition of sugar in the solution before a second phase (e.g. sugar piling up at the bottom of the solution) begins to form?
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At point A, what is the overall composition of the alloy?
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At point B, which phases are present in the alloy (select all that apply)?
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Consider alloy A. At what temperature is the liquidus line?
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What is the composition of the liquid phase (L) for an alloy denoted by point B?
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What is the composition of the alpha phase (α) for an alloy denoted by point B?
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What is the overall composition of an alloy denoted by point B?
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| Load | Length | ||
| N | lbf | mm | in |
| 0 | 0 | 50.800 | 2.000 |
| 12,700 | 2,850 | 50.825 | 2.001 |
| 25,400 | 5,710 | 50..851 | 2.002 |
| 38,100 | 8,560 | 50.876 | 2.003 |
| 50,800 | 11,400 | 50.902 | 2.004 |
| 76,200 | 17,100 | 50.952 | 2.006 |
| 89,100 | 20,000 | 51.003 | 2.008 |
| 92,700 | 20,800 | 51.054 | 2.010 |
| 102,500 | 23,000 | 51.181 | 2.015 |
| 107,800 | 24,200 | 51.308 | 2.020 |
| 119,400 | 26,800 | 51.562 | 2.030 |
| 128,300 | 28,800 | 51.816 | 2.040 |
| 149,700 | 33,650 | 52.832 | 2.080 |
| 159,000 | 35,750 | 53.848 | 2.120 |
| 160,400 | 36,000 | 54.356 | 2.140 |
| 159,500 | 35,850 | 54.864 | 2.160 |
| 151,500 | 34,050 | 55.880 | 2.200 |
| 124,700 | 28,000 | 56.642 | 2.230 |
| Fracture | |||
| Load | Length | ||
| N | lbf | mm | in |
| 0 | 0 | 50.800 | 2.000 |
| 12,700 | 2,850 | 50.825 | 2.001 |
| 25,400 | 5,710 | 50..851 | 2.002 |
| 38,100 | 8,560 | 50.876 | 2.003 |
| 50,800 | 11,400 | 50.902 | 2.004 |
| 76,200 | 17,100 | 50.952 | 2.006 |
| 89,100 | 20,000 | 51.003 | 2.008 |
| 92,700 | 20,800 | 51.054 | 2.010 |
| 102,500 | 23,000 | 51.181 | 2.015 |
| 107,800 | 24,200 | 51.308 | 2.020 |
| 119,400 | 26,800 | 51.562 | 2.030 |
| 128,300 | 28,800 | 51.816 | 2.040 |
| 149,700 | 33,650 | 52.832 | 2.080 |
| 159,000 | 35,750 | 53.848 | 2.120 |
| 160,400 | 36,000 | 54.356 | 2.140 |
| 159,500 | 35,850 | 54.864 | 2.160 |
| 151,500 | 34,050 | 55.880 | 2.200 |
| 124,700 | 28,000 | 56.642 | 2.230 |
| Fracture | |||
| Load | Length | ||
| N | lbf | mm | in |
| 0 | 0 | 50.800 | 2.000 |
| 12,700 | 2,850 | 50.825 | 2.001 |
| 25,400 | 5,710 | 50..851 | 2.002 |
| 38,100 | 8,560 | 50.876 | 2.003 |
| 50,800 | 11,400 | 50.902 | 2.004 |
| 76,200 | 17,100 | 50.952 | 2.006 |
| 89,100 | 20,000 | 51.003 | 2.008 |
| 92,700 | 20,800 | 51.054 | 2.010 |
| 102,500 | 23,000 | 51.181 | 2.015 |
| 107,800 | 24,200 | 51.308 | 2.020 |
| 119,400 | 26,800 | 51.562 | 2.030 |
| 128,300 | 28,800 | 51.816 | 2.040 |
| 149,700 | 33,650 | 52.832 | 2.080 |
| 159,000 | 35,750 | 53.848 | 2.120 |
| 160,400 | 36,000 | 54.356 | 2.140 |
| 159,500 | 35,850 | 54.864 | 2.160 |
| 151,500 | 34,050 | 55.880 | 2.200 |
| 124,700 | 28,000 | 56.642 | 2.230 |
| Fracture | |||
| Load | Length | ||
| N | lbf | mm | in |
| 0 | 0 | 50.800 | 2.000 |
| 12,700 | 2,850 | 50.825 | 2.001 |
| 25,400 | 5,710 | 50..851 | 2.002 |
| 38,100 | 8,560 | 50.876 | 2.003 |
| 50,800 | 11,400 | 50.902 | 2.004 |
| 76,200 | 17,100 | 50.952 | 2.006 |
| 89,100 | 20,000 | 51.003 | 2.008 |
| 92,700 | 20,800 | 51.054 | 2.010 |
| 102,500 | 23,000 | 51.181 | 2.015 |
| 107,800 | 24,200 | 51.308 | 2.020 |
| 119,400 | 26,800 | 51.562 | 2.030 |
| 128,300 | 28,800 | 51.816 | 2.040 |
| 149,700 | 33,650 | 52.832 | 2.080 |
| 159,000 | 35,750 | 53.848 | 2.120 |
| 160,400 | 36,000 | 54.356 | 2.140 |
| 159,500 | 35,850 | 54.864 | 2.160 |
| 151,500 | 34,050 | 55.880 | 2.200 |
| 124,700 | 28,000 | 56.642 | 2.230 |
| Fracture | |||
| Load | Length | ||
| N | lbf | mm | in |
| 0 | 0 | 50.800 | 2.000 |
| 12,700 | 2,850 | 50.825 | 2.001 |
| 25,400 | 5,710 | 50..851 | 2.002 |
| 38,100 | 8,560 | 50.876 | 2.003 |
| 50,800 | 11,400 | 50.902 | 2.004 |
| 76,200 | 17,100 | 50.952 | 2.006 |
| 89,100 | 20,000 | 51.003 | 2.008 |
| 92,700 | 20,800 | 51.054 | 2.010 |
| 102,500 | 23,000 | 51.181 | 2.015 |
| 107,800 | 24,200 | 51.308 | 2.020 |
| 119,400 | 26,800 | 51.562 | 2.030 |
| 128,300 | 28,800 | 51.816 | 2.040 |
| 149,700 | 33,650 | 52.832 | 2.080 |
| 159,000 | 35,750 | 53.848 | 2.120 |
| 160,400 | 36,000 | 54.356 | 2.140 |
| 159,500 | 35,850 | 54.864 | 2.160 |
| 151,500 | 34,050 | 55.880 | 2.200 |
| 124,700 | 28,000 | 56.642 | 2.230 |
| Fracture | |||
log σT = log K + n log εT
Thus, a plot of log σT vs. log εT in the plastic region to the point of necking should yield a straight line having a slope of n and an intercept of log K.
Using the data in the table below, determine the value of n [report your answer to 3 significant figures].
| Load | Length | ||
| N | lbf | mm | in |
| 0 | 0 | 50.800 | 2.000 |
| 12,700 | 2,850 | 50.825 | 2.001 |
| 25,400 | 5,710 | 50..851 | 2.002 |
| 38,100 | 8,560 | 50.876 | 2.003 |
| 50,800 | 11,400 | 50.902 | 2.004 |
| 76,200 | 17,100 | 50.952 | 2.006 |
| 89,100 | 20,000 | 51.003 | 2.008 |
| 92,700 | 20,800 | 51.054 | 2.010 |
| 102,500 | 23,000 | 51.181 | 2.015 |
| 107,800 | 24,200 | 51.308 | 2.020 |
| 119,400 | 26,800 | 51.562 | 2.030 |
| 128,300 | 28,800 | 51.816 | 2.040 |
| 149,700 | 33,650 | 52.832 | 2.080 |
| 159,000 | 35,750 | 53.848 | 2.120 |
| 160,400 | 36,000 | 54.356 | 2.140 |
| 159,500 | 35,850 | 54.864 | 2.160 |
| 151,500 | 34,050 | 55.880 | 2.200 |
| 124,700 | 28,000 | 56.642 | 2.230 |
| Fracture |
|||
log σT = log K + n log εT
Thus, a plot of log σT vs. log εT in the plastic region to the point of necking should yield a straight line having a slope of n and an intercept of log K.
Using the data in the table below, determine the value of K [report your answer with units of MPa to 3 significant figures].
| Load | Length | ||
| N | lbf | mm | in |
| 0 | 0 | 50.800 | 2.000 |
| 12,700 | 2,850 | 50.825 | 2.001 |
| 25,400 | 5,710 | 50..851 | 2.002 |
| 38,100 | 8,560 | 50.876 | 2.003 |
| 50,800 | 11,400 | 50.902 | 2.004 |
| 76,200 | 17,100 | 50.952 | 2.006 |
| 89,100 | 20,000 | 51.003 | 2.008 |
| 92,700 | 20,800 | 51.054 | 2.010 |
| 102,500 | 23,000 | 51.181 | 2.015 |
| 107,800 | 24,200 | 51.308 | 2.020 |
| 119,400 | 26,800 | 51.562 | 2.030 |
| 128,300 | 28,800 | 51.816 | 2.040 |
| 149,700 | 33,650 | 52.832 | 2.080 |
| 159,000 | 35,750 | 53.848 | 2.120 |
| 160,400 | 36,000 | 54.356 | 2.140 |
| 159,500 | 35,850 | 54.864 | 2.160 |
| 151,500 | 34,050 | 55.880 | 2.200 |
| 124,700 | 28,000 | 56.642 | 2.230 |
| Fracture |
|||
The above atomic structure is representative of that of a crystalline structure.
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The above atomic structure is representative of that of a crystalline structure.
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