question archive The yield stress of a brass with grain size of d= 800 microns was found to be σy=50MPa
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The yield stress of a brass with grain size of d= 800 microns was found to be σy=50MPa. Using the Hall-Petch equation, σy=σo+kd-0.5, where σo= 35MPa for brass, what would the yield stress of the same brass be if it had a grain size of 100microns
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