NDLI: Fatigue damage study in aluminum-2024 t3 alloys

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Fatigue damage study in aluminum-2024 t3 alloys

Content Provider	NASA Technical Reports Server (NTRS)
Author	Ferguson, Milton W.
Copyright Year	1992
Description	The grain structure of aluminum 2024, a commonly used commercial alloy is investigated, and these findings are correlated with the fatigue property of the material. Samples of aluminum 2024 were polished and etched in different reagents. Optical micrographs (at 500X) of samples etched in Keller's reagent revealed grain boundaries as well as some particles present in the microstructure. Normal x-ray scans of samples etched for different intervals of time in Keller's reagent indicate no significant variations in diffraction peak positions; however, the width of the rocking curve increased with the time of etching. These results are consistent with the direct dependence of the width of the rocking curve on the range of grain orientation. Etching removes the preferred orientation layer of the sample produced by polishing; thereby, causing the width to increase.
File Size	80061
Page Count	2
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19930007578
Archival Resource Key	ark:/13960/t2s51kd6w
Language	English
Publisher Date	1992-09-01
Access Restriction	Open
Subject Keyword	Metallic Materials Grain Boundaries Grain Size Scanning Fatigue Materials Reagents Aluminum Alloys Polishing Etching Microstructure X Ray Diffraction Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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