ASTM-E1077 Standard Test Methods for Estimating the Depth of Decarburization of Steel Specimens

ASTM-E1077 - 2014 R21 EDITION - CURRENT
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Standard Test Methods for Estimating the Depth of Decarburization of Steel Specimens
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Scope

1.1 These test methods cover procedures for estimating the depth of decarburization of steels irrespective of the composition, matrix microstructure, or section shape. The following basic procedures may be used:

1.1.1 Screening methods.

1.1.2 Microscopical methods.

1.1.3 Microindentation hardness methods.

1.1.4 Chemical analysis methods.

1.2 In case of a dispute, the rigorous quantitative or lineal analysis method (see 7.3.5 and 7.3.6) shall be the referee method. These methods can be employed with any cross-sectional shape. The chemical analytical methods generally reveal a greater depth of decarburization than the microscopical methods but are limited to certain simple shapes and by availability of equipment. These techniques are generally reserved for research studies. The microindentation hardness method is suitable for accurate measurements of hardened structures with relatively homogeneous microstructures.

1.3 The values stated in SI units are to be regarded as standard. The inch-pound equivalents are in parentheses and may be approximate.

1.4 This standard does not purport to address all of the safety problems, 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.

Keywords

carbon content; complete decarburization; decarburization; ferrite; microindentation hardness; partial decarburization; steels; total decarburization

To find similar documents by ASTM Volume:

03.01 (Metals -- Mechanical Testing; Elevated and Low-Temperature Tests; Metallography)

To find similar documents by classification:

77.080.20 (Steels)

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Document Number

ASTM-E1077-14R21

Revision Level

2014 R21 EDITION

Status

Current

Modification Type

Revision

Publication Date

June 24, 2021

Document Type

Test Method

Page Count

10 pages

Committee Number

E04.14