Modeling of annihilation of micropores in single-crystal nickel-base superalloys during hot isostatic pressing - MICROPORES-HIP
Project summary
High-pressure turbine blades are critical components of aircraft engines. They are cast as single-crystals of nickel-base superalloys. A negative side effect are casting micropores initiating fatigue failure. The pores can be removed by hot isostatic pressing (HIP), however this technological process, performed at temperature close to solidus, can damage a costly blade by recrystallization and incipient melting. The objective of our project is to develop a computational HIP model for the simulation of micropore annihilation, enabling to optimize the HIP parameters. The target property is blade material without pores with fatigue life increased by many times. Pore annihilation in single-crystals at an ultrahigh homologous temperature of about 0.97 is a complex multiscale physical process. Therefore the computational HIP model will be composed of several physical and phenomenological models considering phenomena from the atomic level up to the continuum level.Project Details
Call
Call 2014
Call Topic
Integrated Computational Materials Engineering (ICME)
Project start
01.12.2015
Project end
30.11.2018
Total project costs
1.700.962 €
Total project funding
819.910 €
TRL
-
Coordinator
Dr. Alexander Epishin
alex_epishin@yahoo.de
Technical University of Berlin, Ernst-Reuter-Platz 1, 10587 Berlin, Germany
Partners and Funders Details
Consortium Partner | Country | Funder | |
---|---|---|---|
Technical University of Berlin http://www.tu-berlin.de |
University | Germany | DE-DFG |
Laboratoire d’Etude des Microstructures, CNRS/ONERA https://www.onera.fr |
Research org. | France | FR-ANR |
CIRIMAT/University of Toulouse https://www.cirimat.cnrs.fr |
University | France | FR-ANR |
Federal Institute for Materials Research and Testing https://www.bam.de |
Research org. | Germany | DE-DFG |