Calculation of Ferritic Grain Size Number.

Keyword

Ferritic Grain Size Number,Number of grain per 25mm^2.

Reference

[1]:Japanese Industrial Standards Committee:『Glossary of Terms Used in Iron and Steel (Testing)』,JISG0202-1987.
[2]:Japanese Industrial Standards Committee:『Steels - Micrographic determination of the apparent grain size』,JISG0551.

Remarks

・n:Number of grain per 25mm^2 by microscope of 100 times power.
・LaTex: N=\frac{\log_{10}n}{\log_{10}2}+1
・Making above Equation Image is powered by CODECOGS

History

・2010/05/04:Upload.