Engineering, 21.01.2021 22:20 valeriegarcia12
A polycrystalline metal alloy with an average grain size of 12 microns is found to have a yield strength of 120 MPa. The strength of the alloy is doubled when it is work hardened to reduce its average grain size to 1.6 microns. What is the largest average grain size that this alloy can have if it is used in an application where it must have a yield strength of at least 85 MPa
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