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ASTM E1351 FREE DOWNLOAD

Current edition approved Oct. Thank you for interesting in our services. No further reproductions authorized. The replica permits the examination and analysis of the metallographically prepared surface on the LM or SEM. Further grinding to reach a surface free of decarburization can be monitored with the hardness tester. This practice presents some guidelines on the preparation of metallic surfaces and production of replicas and guidelines on evaluation of replica quality. Please fill this form, we will try to respond as soon as possible. astm e1351

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ASTM E - 01 Standard Practice for Production and Evaluation of Field Metallographic Replicas

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Metal Surface Preparation 6. NOTE 3—The presence of decarburization can be detected with a portable hardness tester during the grinding steps. The microstructural replica can be examined using a light microscope LM or scanning electron microscope SEM for subsequent analysis. Because of the diversity of metallographic equipment available and the wide range of environments in which atsm is conducted, the preparation of replicas of high quality should be viewed as a skilled process for which there exists a variety of techniques that achieve satisfactory results.

E1351.1475230-1 replicas

The film is pressed against the surface for several seconds to ensure adherance. In addition, using a coating of black ink or paint on the back side of the replica can improve the contrast.

In some cases, the use of interference illumination will also improve contrast; satm, optimum contrast for both LM and SEM can be achieved by coating the replica surface with a thin, highly reflective metallic layer material normally deposited in a vacuum coating unit. It is the responsibility of the user of this standard to establish appropriate safety and health practices and astk the applicability of regulatory limitations prior to use.

Originally approved in Some metallographers prefer to coat the back side of the replica with an opaque substance such as black paint or ink prior to applying tape to improve the contrast when the replica is subsequently examined. Inch-pound units given in parentheses are for information only. Specimens examined in the SEM are vacuum coated f1351 vaporized carbon or a suitable metal to provide contrast and conductivity.

Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. However, all quantitative results produced through the examination of replicas can be influenced by the replication process. Aluminum, carbon, and chromium have been found to be e131 coatings for replicas to be evaluated by LM.

E replicas - Free Download PDF

The mounting may be accomplished using a doublesided adhesive tape, either applied to the back side of the dried replica film while it remains on the prepared surface or applied to the slide before transferring the replica on the tape surface. This practice presents some guidelines on the preparation of zstm surfaces and production of replicas and guidelines on evaluation of replica quality. No further reproductions authorized.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

In addition, neither precipitates, such as primary and secondary carbides and carbonitrides, nor nonmetallic inclusions, such as oxides and sulfides, shall be dislodged during polishing or etching regardless of their size. Historical Version s - view previous versions of standard. The replica permits the examination and analysis of the metallographically ee1351 surface on the LM or SEM.

If the replica is to be examined in the SEM, however, gold, which yields optimum contrast, is preferable.

astm e1351

Current edition approved Oct. Minimum identification should include the job or other identification number, the name, the presence and characteristics of any coating applied to either side of the replica, and the name of the preparer.

astm e1351

A number in parentheses indicates the year of last reapproval. Size px x x x x The proper preparation of the test surface and of the replica itself is of axtm importance and must receive careful attention. 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. Precision and Bias It does not attempt to limit the variations in technique developed by skilled metallographers, each of which may produce acceptable replicas.

Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. Last previous edition approved in as E — Note 1 — It is recommended that the purchaser of a field replication service specify that each replicator demonstrate proficiency by providing field prepared replica metallography and direct LM and SEM comparison to laboratory prepared samples of an identical material by grade and service exposure.

Using the rounded end of a glass rod to apply the replica on the tape is usually beneficial in reducing air atsm and ensuring a flat replica. Further grinding to reach a surface free of decarburization can be monitored with the hardness tester.

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