CESAME

Cost Effective Superalloy for Advanced Modern Engine

Coordinatore	AUBERT & DUVAL SAS    more  Organization address address: AVENUE DU MAINE 33 city: PARIS postcode: 75755 contact info Titolo: Ms. Nome: Coraline Cognome: Crozet Email: send email Telefono: +33 0473673762 Fax: +33 0473673266
Nazionalità Coordinatore	France [FR]
Totale costo	894˙800 €
EC contributo	447˙400 €
Programma	FP7-JTI Specific Programme "Cooperation": Joint Technology Initiatives
Code Call	SP1-JTI-CS-2013-01
Funding Scheme	JTI-CS
Anno di inizio	2013
Periodo (anno-mese-giorno)	2013-10-01   -   2015-09-30

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	AUBERT & DUVAL SAS  Organization address address: AVENUE DU MAINE 33 city: PARIS postcode: 75755 contact info Titolo: Ms. Nome: Coraline Cognome: Crozet Email: send email Telefono: +33 0473673762 Fax: +33 0473673266	FR (PARIS)	coordinator	447˙400.00

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 Obiettivo del progetto (Objective)

'Development of new aeronautic engine technologies is led by the requirements in term of noise and fuel consumption reduction. The working temperatures in these new engines for materials such as Inconel 718DA are currently borderlines. Hence, the development of new engine generations, including higher temperatures will certainly impose the replacement of Inconel 718DA by other superalloys for some HPT and LPT disks. Within that context, Aubert&Duval has worked to propose a new innovative superalloy named AD730™. The superalloy has been designed to be an alternative to the U720Li, which is a γ/γ’superalloy know as been very difficult to forge and which is expansive. The AD730™ patented composition makes of this alloy a very promising substitution solution to classical U720Li alloy. First, AD730™ raw material cost is lower than that of U720Li. This alloy is less prone to segregation and its composition more suitable for scrap recycling. One remarkable property of AD730™ is its improved workability. This property permits a significant reduction of the number of heatings for billet conversion. The conversion process which can be applied improves also the ultrasonic inspectability compared to U720Li. Finally, this alloy can be closed die forged under a classical hydraulic press, avoiding the use of expansive isothermal presses. Within CESAME project, Aubert&Duval will then demonstrate that AD730™ LPT disks can be produced with similar mechanical properties compared to U720Li similar parts, but at a significantly lower economical and environmental cost. This R&D program, divided into 6 work packages, will concern the melting process, the conversion process, the closed die forging process and heat treatment process cost optimization. Aubert&Duval aims through that project to create a new 100% European made processing route for high temperature engine disks allowing cost and energy savings, compared to the classical U720Li processing route.'