The influence of γ-γ′ eutectic on the mechanical properties of conventionally cast MAR-M247
Document Type
Article
Publication Date
10-1988
Department
Department of Materials Science and Engineering
Abstract
The influence of γ-γ′ eutectic on the yield strength and ductility of conventionally cast MAR-M 247 was examined. The amount of the γ-γ′ eutectic present at the interdendritic-grain boundary regions was varied by heat treatment below and above the γ′ solvus temperature. The room temperature yield strength increased and the ductility decreased as the amount of γ-γ′ eutectic was reduced. These results are attributed to the fact that the γ-γ′ eutectic possesses a lower strength and greater ductility than the dendrite cores do. As a consequence, the ductile γ-γ′ eutectic hinderes crack propagation and causes a changes in the fracture morphology as the amount of γ-γ′ eutectic is reduced.
Publication Title
Materials Science and Engineering
Recommended Citation
Gasko, K.,
Janowski, G. M.,
&
Pletka, B. J.
(1988).
The influence of γ-γ′ eutectic on the mechanical properties of conventionally cast MAR-M247.
Materials Science and Engineering,
104, 1-8.
http://doi.org/10.1016/0025-5416(88)90400-4
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/5416
Publisher's Statement
© 1988