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ASTM-E2142:2023 Edition

ASTM-E2142:2023 Edition

$37.38

E2142-08(2023) Standard Test Methods for Rating and Classifying Inclusions in Steel Using the Scanning Electron Microscope

Published By Publication Date Number of Pages
ASTM 2023 14
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ASTM E2142-08-Reapproved2023

Active Standard: Standard Test Methods for Rating and Classifying Inclusions in Steel Using the Scanning Electron Microscope

ASTM E2142

Scope

1.1 This test method covers procedures to obtain particle size distribution, chemical classification, and Test Methods E45 ratings of inclusions in steels using an automated scanning electron microscope (SEM) with X-ray analysis and automatic image analysis capabilities.

1.2 There are three discrete methods described. Method 1 is the SEM analog of Test Method E45, which uses image analysis and light microscopy to produce automated Test Methods E45 ratings. Method 2 produces similar ratings based predominantly on sorting inclusions by chemistry into the traditional classes defined in Test Methods E45. Method 3 is recommended when explicit detail is needed on particular inclusion types, not necessarily defined in Test Methods E45, such as to verify the composition of inclusions in inclusion-engineered steel. Method 3 reports stereological parameters such as volume or number fraction, rather than Test Methods E45 type ratings.

1.3 This test method deals only with the recommended test methods and nothing in it should be construed as defining or establishing limits of acceptability for any grade of steel or other alloy where the method is appropriate.

1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

automatic image analysis; complex inclusions; EDX; globular inclusions; inclusions; inclusion ratings; inclusion stringers; oxides; second-phase particles; SEM; steel; stereology; sulfides; X-Ray microanalysis;

ICS Code

ICS Number Code 77.140.01 (Iron and steel products in general)

DOI: 10.1520/E2142-08R23

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