Potrebujeme váš súhlas na využitie jednotlivých dát, aby sa vám okrem iného mohli ukazovať informácie týkajúce sa vašich záujmov. Súhlas udelíte kliknutím na tlačidlo „OK“.
Standard Test Methods for Determining the Inclusion Content of Steel (Includes all amendments And changes 12/31/2010).
Automaticky preložený názov:
Štandardné testovacie metódy pre stanovenie zahrnutie Obsah ocele
NORMA vydaná dňa 1.11.2005
Označenie normy: ASTM E45-05e2
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.11.2005
Kód tovaru: NS-46820
Počet strán: 19
Približná hmotnosť: 57 g (0.13 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
alumina, automatic image analysis, complex inclusions, fracture test, globular inclusions, inclusions, inclusion rating, inclusion stringers, JK inclusion rating, light microscopy, macroetch test, magnetic-particle method, oxide, SAM rating, silicate, steel, step-down method, stringer, sulfide, Alumina, Area fractions, Ferrous metals/alloys, Field area, Fracture testing--metals/alloys, Geometric analysis, Gray level intensity, Image analysis--metals/metallic materials, Inclusions--metals/alloys
1. Scope | ||||||||||||||||||
1.1 These test methods cover a number of recognized procedures for determining the nonmetallic inclusion content of wrought steel. Macroscopic methods include macroetch, fracture, step-down, and magnetic particle tests. Microscopic methods include five generally accepted systems of examination. In these microscopic methods, inclusions are assigned to a category based on similarities in morphology, and not necessarily on their chemical identity. Metallographic techniques that allow simple differentiation between morphologically similar inclusions are briefly discussed. While the methods are primarily intended for rating inclusions, constituents such as carbides, nitrides, carbonitrides, borides, and intermetallic phases may be rated using some of the microscopic methods. In some cases, alloys other than steels may be rated using one or more of these methods; the methods will be described in terms of their use on steels. 1.2 This practice covers procedures to perform JK-type inclusion ratings using automatic image analysis in accordance with microscopic methods A and D. 1.3 Depending on the type of steel and the properties required, either a macroscopic or a microscopic method for determining the inclusion content, or combinations of the two methods, may be found most satisfactory. 1.4 These test methods deal only with recommended test methods and nothing in them should be construed as defining or establishing limits of acceptability for any grade of steel. 1.5 The values stated in SI units are to be regarded as the standard. Values in parentheses are conversions and are approximate. 1.5 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. |
||||||||||||||||||
2. Referenced Documents | ||||||||||||||||||
|
Chcete mať istotu, že používate len platné technické normy?
Ponúkame Vám riešenie, ktoré Vám zaistí mesačný prehľad o aktuálnosti noriem, ktoré používate.
Chcete vedieť viac informácií ? Pozrite sa na túto stránku.
Posledná aktualizácia: 2024-05-17 (Počet položiek: 2 902 148)
© Copyright 2024 NORMSERVIS s.r.o.