1) Hi just checking if the definition of grain size is the average size of grains in a metal expressed as average diameter. if it is not or if there is a more accurate definition could u define it for me.(adsbygoogle = window.adsbygoogle || []).push({});

2) and if the formula N=2n-1 or is it N=2^(n-1)

n being the number of grains per square inch at magnification of 100 diameters.

or if i am completely wrong please tell me.

thank you

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# Grain size

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