The Structure of N18

Concepts

Natural SciencesMaterials EngineeringMaterials ScienceMechanical Behavior Of MaterialsMetallic MaterialsMetallurgyAlloy DesignAlloysMetalsMetalworking TechnologyPowder MetallurgySteel MaterialsAlloying ElementsHeat-resistant Alloys

Abstract

The structural relationships that control the behavior of the disk alloy N18, in current use at SNECMA, were studied. The alloy, in the fully heat-treated condition, contains three sizes of gamma prime. The largest, 4.3~ diameter, termed primary, forms during forging. The secondary, 0.2wr in Cr, Co and MO.

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