Dissolution of fine γ́ precipitates of MC2 Ni-based single-crystalsuperalloy in creep-fatigue regime

6Citations
Citations of this article
9Readers
Mendeley users who have this article in their library.

Abstract

The dissolution kinetics of an ultra-fine γ́ precipitation occurring in the γ matrix between the standard secondary precipitates of MC2 Ni-based single crystal super alloy was investigated. Creep-fatigue experiments at 1050°C including an overheating at 1200°C were performed on <111>oriented specimens to study the effects of fine γ́ particles on the plastic deformation. During these experiments, a decrease of the plastic deformation rate was observed just after the temperature peak. This hardening effect disappears once the fine γ́ precipitates had been dissolved. A mean time for this hyperfine precipitation dissolution could then be highlighted. Based on both simple binary diffusion and complex diffusion analysis, the mean time for the dissolution of the fine γ́ precipitates is analyzed and compared to the experimental ones. It is shown that considering only a simple binary diffusion is not sufficient and it should be considered amore complex diffusive analysis involving additional interplays. © (2011) Trans Tech Publications, Switzerland.

Cite

CITATION STYLE

APA

Le Graverend, J. B., Cormier, J., Gallerneau, F., & Paulmier, P. (2011). Dissolution of fine γ́ precipitates of MC2 Ni-based single-crystalsuperalloy in creep-fatigue regime. In Advanced Materials Research (Vol. 278, pp. 31–36). https://doi.org/10.4028/www.scientific.net/AMR.278.31

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free