Abstract
New concepts in airframe materials, including powder metallurgy (P/M) alloys and metal matrix composites, have been offered to aircraft manufacturers. These new materials have been suggested as alternatives to conventional ingot metallurgy products now used in airframes. Aircraft manufacturers must evaluate these materials to determine their suitability for airframe use. The stability of the small uniform grain size of prospective P/M alloys was a major concern since some of the proposed fabrication processes involved elevated temperatures. These processes typically have caused grain growth and loss of material properties in ingot materials.A mechanically alloyed, non-heat-treatable, P/M aluminum alloy, IN-9051 is produced by the Novamet Division, MPD Technology Corporation, an Inco Company. Previous research had indicated that elevated temperatures might adversely affect this material's properties. The effect of 16 combinations of elevated temperatures (600-900° F) and times at temperature on the grain size of each of three different extrusions was measured. A similar, but abbreviated, program on sheet material rolled from these extrusions was also conducted.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Proceedings, annual meeting, Electron Microscopy Society of America
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
