ASTM E methods for grain counting using microscope reticle. methods for determining the average grain size ASTM Methods E PCN ASTM E GRAIN SIZE MEASURING METHODS, metallurgy, given in practice E , to delineate most, or all of the grain boundaries; Language: Engelsk. Edition: 12 (). Supersedes: ASTM E Alert Withdrawn. Superseded by: ASTM E Check Published. Number of pages.
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New ASTM E112 2012 Edition revises Standard Test Methods for Determining Average Grain Size
It is the responsibility of the user of this standard to establish appropriate safety and health practices e12-12 determine the applicability of regulatory limitations prior to use. These test methods do not cover methods to characterize the nature of these distributions.
Equivalent inch-pound values, when listed, are in parentheses and may be approximate. Characterization of grain size in specimens with duplex grain size distributions is described in Test Methods E These test methods apply chiefly to single phase grain structures but they can be applied to determine the average size of a particular type of grain structure in a multiphase or multiconstituent specimen. Your Alert Profile lists the documents that will wstm monitored.
These distributions are approximately log normal. Characterization of grain size in asttm with duplex grain size distributions is described in Test Methods E Already Subscribed to this document. Fracture Grain Size Method. This service is not available if you are a URL user where you do not log in with an email address.
The grain size of specimens with two phases, or a phase and a constituent, can be measured using a combination of two methods, a measurement of the volume fraction of the phase and an intercept or planimetric count see Section Measurement of individual, very coarse grains in a fine grained matrix is described in Test Methods E If you need to be able to add standards to the monitoring service, you must register as a user with your own username and password.
You may delete a document from your Alert Profile at any time. Astn widely cited ASTM E not only covers the measurement of average grain size by the comparison procedures as noted abovebut also the planimetric or Jeffries procedure and the intercept procedures.
Equivalent inch-pound values, when listed, are in parentheses and may be approximate. The precision of the method is a function of the number of intercepts or intersections counted. Your email address will not be published. Heyn Linear Intercept Procedure. You need to log in before adding standards to the monitoring service. For determining the mean grain size, and the distribution of grain intercept lengths or grain areas, for polycrystalline metals and nonmetallic materials with equiaxed or deformed grain shapes, with uniform or duplex grain size distributions, and for single phase or multiphase grain structures, use the companion standard ASTM E Because an accurate count can be made without need of marking off intercepts or intersections, the intercept method is faster than the planimetric method for the same level of precision.
Results of Interlaboratory Grain Size Determinations. Partially recrystallized wrought alloys and lightly to moderately cold-worked material may be considered as consisting of non-equiaxed grains, if a grain size measurement is necessary. Determination of spatial grain size, that is, measurement of the size of the three-dimensional grains in the specimen volume, is beyond the scope of these test methods.
Fracture Grain Size Method. This means that you will receive an email update each time the standard is revised.
ASTM E – 13 Standard Test Methods for Determining Average Grain Size
Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. These distributions are approximately log normal.
Characterization of grain size in specimens with duplex grain size distributions is described in Test Methods E Subscription – always available and updated A web subscription provides an easy and secure access to standards, and you are guaranteed to always have the latest edition. Utilization of semi-automatic digitizing tablets or automatic image analyzers to measure grain size is described in Test Methods E Utilization of semi-automatic digitizing tablets or automatic image analyzers to measure grain size is described in Test Methods E Webprint Printed and bound.
These test methods may also be applied to nonmetallic materials with structures having appearances similar to those of the metallic structures shown in the comparison charts.
If the document is revised or amended, you will be notified by email. NOK 1 ,00 excl. This standard is also available to be included in Standards Subscriptions. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. These test methods apply chiefly to single phase grain structures but they can be applied to determine the average size of a particular type of grain structure in a multiphase or multiconstituent specimen.