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Standard Test Method for Determination of Coercivity (Hcs) of Cemented Carbides
Automaticky preložený názov:
Štandardná skúšobná metóda pre stanovenie koercitivita (HCS) zo spekaného karbidu
NORMA vydaná dňa 15.5.2012
Označenie normy: ASTM B887-12
Poznámka: NEPLATNÁ
Dátum vydania normy: 15.5.2012
Kód tovaru: NS-8623
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
cemented carbide, coercive force, coercivity, magnetization, ICS Number Code 77.160 (Powder metallurgy)
Significance and Use | ||||||||||
Measurement of coercivity provides a relative comparison of carbide grain size, binder content, and possibly carbon deficiency for a given graded carbide material or product, and may be employed as a non-destructive measurement indicating deviation from a specified norm. This test method allows the non-destructive estimate of average carbide grain size in sintered cemented carbide hardmetals. It is appropriate for a wide range of compositions and tungsten carbide (WC) WC grain sizes, and can be used for acceptance of material or product to specification. |
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1. Scope | ||||||||||
1.1 This test method covers the determination of magnetization coercivity (Hcs) of cemented carbide materials and products using coercive force instrumentation. It is patterned after ISO 3326. 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 and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||||||||
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