GOST R ISO 643-2011
ГОСТ Р ИСО 643-2011
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Steels. Micrographic determination of the apparent grain size
Сталь. Металлографическое определение наблюдаемого размера зерна
Status: Not effective - Superseded. Registration information 1568-st dated 10/16/2015 (the official website of FSUE "Standartinform"); (IUS 5-2016)
This standard establishes a metallographic method for determining the observed size of ferritic or austenitic grain in steels. It describes methods for detecting grain boundaries and estimating the average grain size in samples with a unimodal grain size distribution. Although the grains have a three-dimensional shape, the microsection plane can intersect the grain at any point from the grain angle to the maximum grain diameter, thus creating a wide range of grain sizes observed on the two-dimensional plane even in a sample with perfectly matching grain sizes.
Настоящий стандарт устанавливает металлографический метод определения наблюдаемого размера ферритного или аустенитного зерна в сталях. В нем описаны методы выявления границ зерен и оценки среднего размера зерна в образцах с унимодальным распределением размеров зерен. Хотя зерна имеют трехмерную форму, плоскость микрошлифа может пересекать зерно в любой точке от угла зерна до максимального диаметра зерна, создавая, таким образом, широкий диапазон размеров зерна, наблюдаемых на двумерной плоскости даже в образце с идеально совпадающими размерами зерен
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Format: Electronic (pdf/doc)
Approved: Federal Agency for Technical Regulation and Metrology,
11/29/2011
SKU: RUSS71512
The Product is Contained in the Following Classifiers:
PromExpert »
SECTION I. TECHNICAL REGULATION »
V Testing and control »
4 Testing and control of products »
4.12 Testing and control of products of metallurgical industry »
4.12.1 Ferrous metals »
ISO classifier »
77 METALLURGY »
77.040 Metal Testing »
77.040.99 Other Metals Testing Methods »
National standards »
77 METALLURGY »
77.040 Metal Testing »
77.040.99 Other Metals Testing Methods »
ISO classifier »
77 METALLURGY »
77.080 Ferrous metals »
77.080.20 Steel »
National standards »
77 METALLURGY »
77.080 Ferrous metals »
77.080.20 Steel »
National Standards for KGS (State Standards Classification) »
Latest edition »
V Metals and metal products »
V0 General rules and regulations on metallurgy »
V09 Test methods. Packaging. Marking »
The Document is Replaced With:
GOST R ISO 643-2015: Steels. Micrographic determination of the apparent grain size
The Document is Referenced By:
GOST R ISO 13782-2017: Implants for surgery. Metallic materials. Unalloyed tantalum for surgical implant applications
GOST R ISO 14250-2013: Steel. Metallographic characterization of duplex grain size and distribution
GOST R ISO 22034-1-2013: Steel wire and wire products. Part 1. General test methods
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