NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Structure and properties of a splat cooled 2024 aluminum alloyIn the investigation the alloy was melted, heated to 750 C, and atomized into fine droplets. The droplets were rapidly quenched against a heavy copper disk rotating at 1725 rpm. The resultant splat cooled flakes were screened. Three flake sizes were finally separated. Flakes of each size were separately processed. The characteristics of the splat cooling process and the properties of the obtained products are discussed. Splat cooling against a metallic substrate permits cooling rates up to about 1,000,000 deg C/sec. Increases in yield strength and tensile strength of 14 to 19% are observed for the splat products. Other improvements are connected with increases in fatigue life and stress rupture performance.
Document ID
19740053587
Document Type
Reprint (Version printed in journal)
Authors
Lebo, M. (Westinghouse Bettis Atomic Power Laboratory West Miffin, Pa., United States)
Grant, N. J. (MIT Cambridge, Mass., United States)
Date Acquired
August 7, 2013
Publication Date
July 1, 1974
Publication Information
Publication: Metallurgical Transactions
Volume: 5
Subject Category
MATERIALS, METALLIC
Funding Number(s)
CONTRACT_GRANT: NGL-22-009-003
Distribution Limits
Public
Copyright
Other