Consider an AISI 4135 steel, in which all of the alloying elements have the mean or average value of their ranges.
(a) Determine its ideal critical diameter.
(b) Determine the maximum diameter of a bar of this material that can be quenched, so as to obtain a 50 percent martensite?50 percent pearlite structure at its center when given a poor oil
quench.
(c) Make the same computation, but now assume that the bar is given a brine quench.
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