Engineering, 19.03.2020 17:00 smallblueberry
Recrystallization Incorrect. During the recrystallization of a cold-worked material, which of the following statement(s) is (are) true? Some of the internal strain energy is relieved.
a. The thermal conductivity is recovered to its pre cold-worked state
b. All of the internal strain energy is relieved.
c. The metal becomes more ductile, as in its precold-worked state.
d. There is some reduction in the number of dislocations
e. The electrical conductivity is recovered to its precold-worked state
f. There is a significant reduction in the number of dislocations, to approximately the number found in the precold-worked state
g. Grains with high strains are replaced with new, unstrained grains
Answers: 3
Engineering, 04.07.2019 18:10, winterblanco
The higher the astm grain-size number, the coarser the grain is. a)-true b)-false
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Engineering, 04.07.2019 18:20, RiverH246
Air flows over a heated plate àt a velocity of 50m/s. the local skin factor coefficient at a point on a plate is 0.004. estimate the local heat transfer coefficient at this point. the following property data for air are given: density = 0.88kg/m3 , viscosity 2.286 x 10 ^-5 kgm/s , k = 0.035w/mk ,cp = 1.001kj/kgk. use colburn reynolds analogy.
Answers: 1
Recrystallization Incorrect. During the recrystallization of a cold-worked material, which of the fo...
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