ASTM-E1382:2004 Edition

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E1382-97(2004) Standard Test Methods for Determining Average Grain Size Using Semiautomatic and Automatic Image Analysis

Published By	Publication Date	Number of Pages
ASTM	2004	22

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Description

ASTM E1382-97-Reapproved2004

Historical Standard: Standard Test Methods for Determining Average Grain Size Using Semiautomatic and Automatic Image Analysis

ASTM E1382

Scope

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.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

1.6 The sections appear in the following order:

Keywords

ALA grain size; anisotropy index; area fraction; ASTM grain size number; austenite grains; automatic image analysis; calibration; chord length; confidence level; digitizing tablet; duplex grain structures; equiaxed grains; etchant; ferrite grains; grain boundary; grains; grain size; intercept length; intersection count; magnification; non-equiaxed grains; polycrystalline; prior-austenite grain boundaries; relative accuracy; semiautomatic image analysis; skeletonization; standard deviation; twin boundary; watershed segmentation

ICS Code

ICS Number Code n/a

DOI: 10.1520/E1382-97R04

PDF Catalog

PDF Pages	PDF Title
1	Scope
2	Referenced Documents Terminology
3	Summary of Test Methods Significance and Use Interferences
4	Apparatus Sampling Test Specimens
5	Specimen Preparation
6	Calibration and Standardization Procedure: Semiautomatic Digitizing Tablet
7	TABLE 1
9	Procedure: Automatic Image Analysis
11	Calculation of Results
12	TABLE 2 TABLE 3 TABLE 4
13	Test Report Precision and Bias
14	Keywords A1. GRAIN SIZE OF NON-EQUIAXED GRAIN STRUCTURE SPECIMENS A1.1 A1.2 A1.3 A1.4
15	A1.5 A1.6 FIG. A1.1 FIG. A1.2 FIG. A1.3
16	A1.7 TABLE A1.1
17	A2. EXAMPLES OF PROPER AND IMPROPER GRAIN BOUNDARY DELINEATION A2.1 FIG. A2.1 FIG. A2.2
18	FIG. A2.3 FIG. A2.4 FIG. A2.5
19	FIG. A2.6 FIG. A2.7 FIG. A2.8
20	FIG. A2.9 FIG. A2.10 FIG. A2.11
21	FIG. A2.12 FIG. A2.13
22	REFERENCES FIG. A2.14

Additional information

Standard Title	E1382-97(2004) Standard Test Methods for Determining Average Grain Size Using Semiautomatic and Automatic Image Analysis
Published Code	ASTM
Publication Date	2004
Pages Count	22