ASTM-B886 › Standard Test Method for Determination of Magnetic Saturation (Ms) of Cemented Carbides
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1.1 This test method covers the determination of magnetic saturation (Ms) of cemented carbide powder materials and sintered products using magnetic saturation induction test instrumentation.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
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
5.1 This test method allows the nondestructive measurement of the magnetic fraction of the binder phase in cemented carbide powder materials and sintered product, and may be used as an indirect measure of the carbon level in the material or product.
5.2 Measurement of magnetic saturation provides a comparison of the relative fraction of magnetic binder phase, that is, cobalt, nickel, or iron, present in the material and can be used for acceptance of product to specification.
5.3 Measurement of magnetic saturation can be used as a measure of the quality of powder material.
cemented carbide; magnetic saturation (Ms);; ICS Number Code 77.160 (Powder metallurgy)
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May 1, 2019