The proposed project offers opportunities to explore, discover and develop new classes of compositionally complex alloys called High-Entropy Alloys (HEAs) – whose name emphasizes their inherent high mixing entropy. HEAs are a promising way toward the development of new and innovative metallurgy. Based on a real breakthrough from traditional materials concepts, the alloy design considers the formation of simple solid solution(s) with the mixing of multi-principal elements. The resulting materials have advanced properties, as they are likely to form distorted (solid solutions) phases with thermally stable microstructures with tremendous solid solution strengthening.
The project is a premiere in France, aimed at investigating HEAs capability for turbomachine applications for aerospace industry and especially low-pressure turbines (LPTs) in the 800-1000°C temperature range. The design of new high potential HEAs systems with significantly improved properties requires a multi-scale approach and a suitable combination of experiments. The ambitious nature of the proposal lies in this approach and also focuses on scientific axes, considered since decades as expertise domains of the involved partners: from the chemical metallurgy (formulation and preparation) to the properties through microstructure investigations and the understanding of the microstructure/mechanical properties relationships.
Monsieur Jean-Philippe Couzinié (Institut de Chimie et des Matériaux Paris-Est)
The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.
LSPM (CNRS DR PV) Laboratoire des Sciences des Procédés et des Matériaux
LSPM Laboratoire des Sciences des Procédés et des Matériaux
ONERA ONERA CENTRE PALAISEAU
SAFRAN SAFRAN SA
CNRS Institut de Chimie et des Matériaux Paris-Est
Help of the ANR 703,155 euros
Beginning and duration of the scientific project: - 48 Months