| Issue |
MATEC Web of Conferences
Volume 14, 2014
EUROSUPERALLOYS 2014 – 2nd European Symposium on Superalloys and their Applications
|
|
|---|---|---|
| Article Number | 13002 | |
| Number of page(s) | 6 | |
| Section | Posters: Process Microstructure Interactions | |
| DOI | https://doi.org/10.1051/matecconf/20141413002 | |
| Published online | 29 August 2014 | |
Optimization of the homogenization and hot isostatic pressing heat treatments of a fourth generation single crystal superalloy
Onera, The French Aerospace Lab, 92322 Châtillon Cedex, France
a Corresponding author: pierre.caron@onera.fr
Various solution heat treatment sequences including a hot isostatic pressing step were tested on the MC-NG fourth generation single crystal superalloy with the aim to minimize the total duration of the treatment while obtaining a satisfactory level of microstructural homogeneity and low amount and size of pores. A procedure including the HIP step after full solutioning of the material allows to avoid reopening of the pores but needs a short post-HIP heat treatment followed by air quenching to get the desired γ′ precipitate size. The total duration of the solution heat treatment has been reduced from 18 to 6 hours as compared with the previous standard procedure.
© Owned by the authors, published by EDP Sciences, 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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