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ASTM E 1268 : 2001 : R2016

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Practice for Assessing the Degree of Banding or Orientation of Microstructures
Available format(s)

Hardcopy , PDF

Superseded date

03-20-2019

Language(s)

English

Published date

03-31-2016

CONTAINED IN VOL. 03.01, 2016 Specifies a procedure to qualitatively describe the nature of banded or oriented microstructures based on the morphological appearance of the microstructure.

1.1This practice describes a procedure to qualitatively describe the nature of banded or oriented microstructures based on the morphological appearance of the microstructure.

1.2This practice describes stereological procedures for quantitative measurement of the degree of microstructural banding or orientation.

Note 1:Although stereological measurement methods are used to assess the degree of banding or alignment, the measurements are only made on planes parallel to the deformation direction (that is, a longitudinal plane) and the three-dimensional characteristics of the banding or alignment are not evaluated.

1.3This practice describes a microindentation hardness test procedure for assessing the magnitude of the hardness differences present in banded heat-treated steels. For fully martensitic carbon and alloy steels (0.10–0.65 %C), in the as-quenched condition, the carbon content of the matrix and segregate may be estimated from the microindentation hardness values.

1.4This standard does not cover chemical analytical methods for evaluating banded structures.

1.5This practice deals only with the recommended test methods and nothing in it should be construed as defining or establishing limits of acceptability.

1.6The measured values are stated in SI units, which are regarded as standard. Equivalent inch-pound values, when listed, are in parentheses and may be approximate.

1.7This 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.

Committee
E 04
DocumentType
Standard Practice
Pages
29
ProductNote
Reconfirmed 2016
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM E 384 : 2017 Standard Test Method for Microindentation Hardness of Materials
ASTM A 354 : 2017 : EDT 2 Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners
ASTM E 3 : 2011 : R2017 Standard Guide for Preparation of Metallographic Specimens

ASTM E 7 : 2017 : REDLINE Standard Terminology Relating to Metallography
ASTM E 562 : 2011 : REDLINE Standard Test Method for Determining Volume Fraction by Systematic Manual Point Count
ASTM E 384 : 2017 : REDLINE Standard Test Method for Microindentation Hardness of Materials
ASTM A 588/A588M : 2015 : REDLINE Standard Specification for High-Strength Low-Alloy Structural Steel, up to 50 ksi [345 MPa] Minimum Yield Point, with Atmospheric Corrosion Resistance

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