ME 2733 : ME 2733 Quiz 10 And Answer Key
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Instructions: all responses must be legible (clearly written), print your name, student # and your answers. If you do not know your student #, leave the space blank: for each question, select and record the best answer. For problems 5 and 6, assume that for a pure metal the latent heat of fusion and the surface free energy are -1. 16 x 109 and 0. 132 j/m2, respectively. Assuming that the degree of super cooling ( t) is 250 c and the melting temperature is 1060 c: calculate the critical radius, 9. 65 x 10-10, 1. 21 x 10-9, 1. 5 x 10-8, 0. 06, none of the above. 2015-11-10: calculate the activation free energy ( g*, 8. 14 x 10-19, 5. 15 x 10-19, 4. 67 x 10-17, none of the above. What microconstituent or microconstituents is or are in the microstructure of the steel: ferrite, pearlite, bainite, marteniste, austenite, all of the above, a and b above, b and c above, a, b, and c above.
