A Novel Approach for Rapid Solidification Processing of High Strength PM Aluminum Alloys

841514

10/01/1984

Event
Aerospace Congress and Exposition
Authors Abstract
Content
Incremental spray casting has been applied to the consolidation of advanced high strength aluminum alloys requiring rapid solidification processing. The conditions for incremental spray casting are described and compared with the spray rolling process as proposed originally by A. R. E. Singer. Microstructures and tensile properties of the aluminum alloys 7075, 7091, and PM64 prepared by incremental spray casting and subsequently rolled and heat treated are presented and compared with their conventionally prepared counterparts.
This process provides a direct route from pre-alloyed melt stock to sheet bar; it is a promising alternative to conventional powder metallurgy methods for producing a dense, rapidly solidified deposit of high strength PM aluminum alloy.
At the present time the process is limited to producing deposit thicknesses of about 1 to 2 cm. Improved methods of extracting heat from the solidifying deposit are required for scaleup to thicker sections.
Meta TagsDetails
DOI
https://doi.org/10.4271/841514
Pages
11
Citation
Lewis, R., Fitzpatrick, J., Crooks, D., Singer, A. et al., "A Novel Approach for Rapid Solidification Processing of High Strength PM Aluminum Alloys," SAE Technical Paper 841514, 1984, https://doi.org/10.4271/841514.
Additional Details
Publisher
Published
Oct 1, 1984
Product Code
841514
Content Type
Technical Paper
Language
English