| Issue |
MATEC Web of Conferences
Volume 14, 2014
EUROSUPERALLOYS 2014 – 2nd European Symposium on Superalloys and their Applications
|
|
|---|---|---|
| Article Number | 17005 | |
| Number of page(s) | 6 | |
| Section | Posters: Alloy Development I: Ni Based Alloys | |
| DOI | https://doi.org/10.1051/matecconf/20141417005 | |
| Published online | 08 October 2014 | |
The technology for automated development of economically doped heat-resistant nickel superalloys
JSC “NPO SATURN”, 163 Lenin avenue, Rybinsk 152903, Russia
a Corresponding author: igor.leshchenko@yandex.ru
The paper presents the usage of computational technology, aimed at automated search for optimum compositions of nickel superalloys, being minimally doped by expensive rhenium and having no ruthenium. Resulting doping compositions ensure ultimate long-term high-temperature strength. The technology is based on computer model of alloy and numerical optimization routine. The model computes relation between an alloy composition and its performance characteristics. Multiobjective optimization procedure provides for an automated search for alloy composition to ensure the set of pre-defined properties of a new material. Two new nickel-based single-crystal superalloys are presented, which were created using this technology. SLGS-3 features high-temperature strength (100 hours at 1,000 degrees Centigrade) at approximately 345 MPa. Its composition does not contain ruthenium. SLGS-1 alloy provided for 265 MPa and contained neither rhenium nor ruthenium in its composition.
© 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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