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Norm
ISO 643:2019
Ausgabedatum: 2019 12 12
Steels — Micrographic determination of the apparent grain size (Corrected version 2020-03)
This document specifies a micrographic method of determining apparent ferritic or austenitic grain size in steels. It describes the methods of revealing grain boundaries ...
ZURÜCKGEZOGEN: 2024 08 22
Herausgeber:
International Organization for Standardization
Format:
Digital | 21 Seiten
Sprache:
Englisch
Aktuell Gültig:
ICS
This document specifies a micrographic method of determining apparent ferritic or austenitic grain size in steels. It describes the methods of revealing grain boundaries and of estimating the mean grain size of specimens with unimodal size distribution. Although grains are three-dimensional in shape, the metallographic sectioning plane can cut through a grain at any point from a grain corner, to the maximum diameter of the grain, thus producing a range of apparent grain sizes on the two-dimensional plane, even in a sample with a perfectly consistent grain size.
ISO 643:2019
2019 12 12
Steels — Micrographic determination of the apparent grain size (Corrected version 2020-03)
Norm
↖
ISO 643:1983
1983 09 01
Steels — Micrographic determination of the ferritic or austenitic grain size
Norm
Norm
Ausgabedatum :
2024 08 22
Steels — Micrographic determination of the apparent grain size
