Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
11000897 | Archives of Civil and Mechanical Engineering | 2018 | 10 Pages |
Abstract
Appropriate lost-wax casting parameters lead to the creation of coarse grained structure, desired for high-temperature service applications. As a result of non-equilibrium solidification, substantially large chemical inhomogeneities in the dendrite core and interdendritic spaces are formed. Interdendritic spaces are occupied by constituents formed as a consequence of segregation of alloying elements, namely eutectic islands γ/γâ², borides, carbides, and an intermetallic compound of Ni and Zr. Dendrite cores consist of cubic-shaped γⲠprecipitates surrounded by Ni-rich γ channels. Low lattice misfit influences cubic morphology of γⲠprecipitates, which is favourable for jet engine application because it can guarantee good creep resistance.
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Civil and Structural Engineering
Authors
Åukasz Rakoczy, RafaÅ Cygan,