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Content archived on 2024-04-15

FABRICATION OF ENGINEERING COMPONENTS FROM ALUMINIUM ALLOY RAPIDLY SOLIDIFIED POWDERS

Objective

High temperature Al alloy compone nts are needed for turbines, compressors, motors and chargers in aerospace, automotive and mechanical engineering sectors. These high strength structural alloys offer weight and energy savings. The present proposal is concerned with the production of aluminium- lithium alloy components utilising rapidly solidified powders. The clear objective is to produce near net shape components in these alloys by extrusion, forging and rolling. The main features of the project are: Economic processing of P/M semi or near net shape products has to be established with respect to both up-scaling in industrial environments and powder specifications. P/M components displaying superior properties are anticipated to substitute conventionally manufactured products in case of competitiveness. Optimisation and documentation of previous developed technologies are required for manufacturing of products of reproducible quality. Material structures and production processes have to be coordinated in order to meet particular quality requirements. Feedback information about processability and properties will enable the atomizers to assure the quality of the powders provided. This will help to establish quality standards and to meet the challenge towards wider acceptance of P/M technology.
High temperature aluminium alloy components are needed for turbines compressors, motors and chargers in aerospace, automotive and mechanical engineering sectors. These high strength structural alloys offer weight and energy savings.

The present proposal is concerned with the production of aluminium lithium alloy components utilising rapidly solidified powders. The clear objective is to produce near net shape components in these alloys. The influence of powder surface on the mechanical properties as well as quality of the powder metallurgy (PM) series has to be characterised.

High strength aluminium lithium alloys and hot temperature resistant aluminium iron nickel alloys were produced using the rapid solidification technology.
The alloy content, but not the heat treatment, significantly influences the powder surface conditions.
Aluminium lithium alloys as well as aluminium iron nickel alloys show promising mechanical properties, for example UTS greater than 600 MPa (room temperature (RT) and UTS greater than 250 MPa (300 C), respectively.
The up scaling of the pilot processing technology to production level would seem to be possible.

Topic(s)

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Call for proposal

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Coordinator

Vereinigte Aluminium Werke AG
EU contribution
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Address
Georg-von-Boeselager-Straße 25
5300 Bonn
Germany

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Total cost
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Participants (2)