Austenite Grain Size Estimation in Structural Steels by Linear Section Method / Ocena Wielkości Ziarna Austenitu Metodą Przekrojów Liniowych

Linear section of grains in polyhedral material microstructure is a system of chords on a test line. The mean chord length is the linear grain size of the material. In the prior austenite microstructure of low alloy structural steels, the chord length is a random variable which has the gamma distrib...

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Bibliographic Details
Published in:Archives of metallurgy and materials 2015-12, Vol.60 (4), p.2463-2470
Main Authors: Adrian, H., Wiencek, K.
Format: Article
Language:English
Subjects:
austenite grain size
linear section method
Modeling
Online Access:Get full text
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Summary:Linear section of grains in polyhedral material microstructure is a system of chords on a test line. The mean chord length is the linear grain size of the material. In the prior austenite microstructure of low alloy structural steels, the chord length is a random variable which has the gamma distribution. The distribution parameters are closely related to the austenite linear grain size. Because the sequent chord lengths are statistically independent, the grain size interval estimation (confidence interval) may be performed by the chi-square distribution.
ISSN:2300-1909
1733-3490
2300-1909
DOI:10.1515/amm-2015-0400