HRN EN ISO 4499-2:2011
Tvrdi metali -- Metalografsko određivanje mikrostrukture -- 2. dio: Mjerenje WC veličine zrna (ISO 4499-2:2008; EN ISO 4499-2:2010)
| Oznaka: | HRN EN ISO 4499-2:2011 |
| Naslov (HR): | Tvrdi metali -- Metalografsko određivanje mikrostrukture -- 2. dio: Mjerenje WC veličine zrna (ISO 4499-2:2008; EN ISO 4499-2:2010) |
| Naslov (EN): | Hardmetals -- Metallographic determination of microstructure -- Part 2: Measurement of WC grain size (ISO 4499-2:2008; EN ISO 4499-2:2010) |
| Područje primjene (EN): | ISO 4499-2:2008 gives guidelines for the measurement of hardmetal grain size by metallographic techniques only using optical or electron microscopy. It is intended for sintered WC/Co hardmetals (also called cemented carbides or cermets) containing primarily WC as the hard phase. It is also intended for measuring the grain size and distribution by the linear-intercept technique. ISO 4499-2:2008 essentially covers four main topics: calibration of microscopes, to underpin the accuracy of measurements; linear analysis techniques, to acquire sufficient statistically meaningful data; analysis methods, to calculate representative average values; reporting, to comply with modern quality requirements. ISO 4499-2:2008 is not intended for the following. Measurements of size distribution. Recommendations on shape measurements. Further research is needed before recommendations for shape measurement can be given. Measurements of coercivity are sometimes used for grain-size measurement, but this current guide is concerned only with a metallographic measurement method. It is also written for sintered hardmetals and not for characterising powders. However, the method could, in principle, be used for measuring the average size of powders that are suitably mounted and sectioned. |
| Izdanje: | 1 |
| ICS: | 77.040.99 Ostale metode za ispitivanje metala 77.160 Metalurgija praha |
| Tehnički odbor/pododbor: | TO 503, Metalni materijali |
| Oznaka faze: | 95.99 - povlačenje HRN |
| Glasilo (rasprava): | HZN Glasilo 3/2011 () |
| Glasilo (objava): | HZN Glasilo 4/2011 () |
| Glasilo (povlačenje): | 8/2020 () |
| Način prihvaćanja: | pr - prihvaćanje strane norme u izvorniku |
| Cijena #1: | Cijena: 35,00 € | Jezik: en | Cjenovni razred: F | Broj stranica: 21 |
| Izvornik: | EN ISO 4499-2:2010 |
| Zamjenjuje: | HRN EN 24499:2008 |
| Zamjenjena s: | HRN EN ISO 4499-2:2020 |
Obrazac za naručivanje normativnih dokumenata i/ili publikacija (obrazac ob.025-2):