- #1
physicsnnewbie
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Homework Statement
The lower yield point for an iron that has an average grain diameter of 1e-2mm is 230MPa. At a grain diameter of 6e-3mm, the yield point increases to 275MPa. At what grain diameter will the lower yield point be 310MPa?
Homework Equations
Not sure
The Attempt at a Solution
Not sure how to do it.