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Standard Test Method for Apparent Porosity in Cemented Carbides
STANDARD published on 1.9.2010
Designation standards: ASTM B276-05(2010)
Note: WITHDRAWN
Publication date standards: 1.9.2010
SKU: NS-6071
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
apparent porosity, cemented carbides, hardmetals, microstructure, powder metallurgy, Cemented carbides, Microscopic examination--cemented carbides, Porosity, ICS Number Code 77.160 (Powder metallurgy)
Significance and Use | ||||||
Cemented carbide materials may contain small voids that, depending on the application, may affect the performance of the product. To assist users in specifying the maximum acceptable level of porosity, this test method illustrates a broad range of porosity levels for each of three porosity types. This test method is not intended to be used as a specification, but the levels shown here may be cited in specifications written by producers and users of cemented carbides. |
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1. Scope | ||||||
1.1 This test method specifies procedures for the metallographic determination of apparent porosity in cemented carbides. Note 1—The term “apparent porosity” is construed to mean all microstructures observed on a properly prepared, unetched surface, including structures resulting from uncombined carbon, non-metallic inclusions, etc., as well as true, inherent porosity. 1.2 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 and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||||
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