ASTM E1382-97(2023)
- standard by ASTM International, 04/01/2023
- Standard Test Methods for Determining Average Grain Size Using Semiautomatic and Automatic Image Analysis
- Category: ASTM
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Full Description
1.1 These test methods are used to determine grain size from measurements of grain intercept lengths, intercept counts, intersection counts, grain boundary length, and grain areas.
1.2 These measurements are made with a semiautomatic digitizing tablet or by automatic image analysis using an image of the grain structure produced by a microscope.
1.3 These test methods are applicable to any type of grain structure or grain size distribution as long as the grain boundaries can be clearly delineated by etching and subsequent image processing, if necessary.
1.4 These test methods are applicable to measurement of other grain-like microstructures, such as cell structures.
1.5 This standard deals only with the recommended test methods and nothing in it should be construed as defining or establishing limits of acceptability or fitness for purpose of the materials tested.
1.6 The sections appear in the following order:
Section Section
Scope 1
Referenced Documents 2
Terminology 3
Definitions 3.1
Definitions of Terms Specific to This Standard 3.2
Symbols 3.3
Summary of Test Method 4
Significance and Use 5
Interferences 6
Apparatus 7
Sampling 8
Test Specimens 9
Specimen Preparation 10
Calibration 11
Procedure:
Semiautomatic Digitizing Tablet 12
Intercept Lengths 12.3
Intercept and Intersection Counts 12.4
Grain Counts 12.5
Grain Areas 12.6
ALA Grain Size 12.6.1
Two-Phase Grain Structures 12.7
Procedure:
Document History
ASTM E1382-97(2023)
ASTM E1382-97(2015)
ASTM E1382-97(2010)
ASTM E1382-97(2004)
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