ISO 2624:1990
$19.50
Cuivre et alliages de cuivre — Évaluation de la dimension moyenne du grain
Published By | Publication Date | Number of Pages |
ISO | 1990-02 | 12 |
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La présente Norme internationale spécifie trois méthodes d'évaluation et modes d'expression de la dimension moyenne du grain, dans le cuivre et les alliages de cuivre constitués principalement par une phase unique. Ces méthodes sont appelées, respectivement, méthode par comparaison, méthode par interception, et méthode planimétrique. La méthode par comparaison (de l'échantillon avec des images type) est la plus commode, et elle est suffisamment précise pour la plupart des besoins commerciaux. La méthode par interception (Heyn), comme la méthode planimétrique (Jeffries), permet d'obtenir une précision supérieure d'évaluation de la dimension du grain. En cas de litige, il est recommandé d'utiliser l'une de ces méthodes, après accord entre les parties intéressées. Pour les matériaux à structures non équiaxiales, il est recommandé d'utiliser la méthode d'interception.
Published Code | ISO |
---|---|
Published By | International Organization for Standardization |
Publication Date | 1990-02 |
Pages Count | 12 |
Language | France |
Edition | 2 |
File Size | 6.4 MB |
ICS Codes | 77.040.99 - Other methods of testing of metals 77.120.30 - Copper and copper alloys |
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