ASTM-E768 › Standard Guide for Preparing and Evaluating Specimens for Automatic Inclusion Assessment of Steel
Show Complete Document History
The following bibliographic material is provided to assist you with your purchasing decision:
1.1 This guide covers two preparation methods for steel metallographic specimens that will be analyzed for nonmetallic inclusions with automatic image analysis (AIA) equipment. The two methods of preparation are offered as accepted methods used to retain nonmetallic inclusions in steel. This guide does not limit the user to these methods.
1.2 A procedure to test the suitability of the prepared specimen for AIA inclusion work, using differential interference contrast (DIC), is presented.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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.
Significance and Use
4.1 Inclusion ratings done either manually using Test Methods or automatically using Practice or are influenced by the quality of specimen preparation. This guide provides examples of proven specimen preparation methods that retain inclusions in polished steel specimens.
4.2 This guide provides a procedure to determine if the prepared specimens are of suitable quality for subsequent rating of inclusions. None of these methods should be construed as defining or establishing specific procedures or limits of acceptability for any steel grade.
automatic image analysis; differential interference contrast; inclusions; specimen preparation; steel;
To find similar documents by ASTM Volume:
To find similar documents by classification:
This document comes with our free Notification Service, good for the life of the document.
This document is available in either Paper or PDF format.
Customers who bought this document also bought:NAS-410
NAS Certification and Qualification of Nondestructive Test Personnel
Department of Defense Index of Specifications and Standards - No Longer Available
Brass, Leaded & Nonleaded: Rod, Shapes, Forgings, & Flat Products With Finished Edges
1999 R18 EDITION
May 1, 2018