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- Publisher
- de Gruyter
- Copyright
- © 2017 H. Adrian et al., published by De Gruyter Open
- ISSN
- 2300-1909
- eISSN
- 2300-1909
- DOI
- 10.1515/amm-2017-0300
- Publisher site
- See Article on Publisher Site
Abstract
AbstractLinear section of grains in polyhedral material microstructure is a system of chords. The mean length of chords is the linear grain size of the microstructure. For the prior austenite grains of low alloy structural steels, the chord length is a random variable of gamma- or logarithmic-normal distribution. The statistical grain size estimation belongs to the quantitative metallographic problems. The so-called point estimation is a well known procedure. The interval estimation (grain size confidence interval) for the gamma distribution was given elsewhere, but for the logarithmic-normal distribution is the subject of the present contribution. The statistical analysis is analogous to the one for the gamma distribution.
Journal
Archives of Metallurgy and Materials – de Gruyter
Published: Dec 1, 2017