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  • ASTM E 1268 : 2001 : R2007

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Standard Practice for Assessing the Degree of Banding or Orientation of Microstructures

    Available format(s):  Hardcopy, PDF

    Superseded date:  11-11-2014

    Language(s):  English

    Published date:  31-12-2010

    Publisher:  American Society for Testing and Materials

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    Abstract - (Show below) - (Hide below)

    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.

    Scope - (Show below) - (Hide below)

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

    1.2 This 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.

    1.3 This 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.

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

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

    1.6 The 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.

    1.7 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.

    General Product Information - (Show below) - (Hide below)

    Committee E 04
    Document Type Standard Practice
    Product Note Reconfirmed 2007
    Publisher American Society for Testing and Materials
    Status Superseded
    Superseded By
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    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 384 : 2017 Standard Test Method for Microindentation Hardness of Materials

    Standards Referencing This Book - (Show below) - (Hide below)

    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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