Study of precipitation and deformation characteristics of the aluminium-lithium alloy by X-ray double crystal diffractometry

The X-ray double crystal diffractometry technique was utilized to follow the aging and deformation characteristics in the 2090 Al--Li alloy. This non-destructive method is extremely sensitive to measure the strain and dislocation density within individual grains through X-ray rocking curves. For agi...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials science 1990-09, Vol.25 (9), p.3938-3940
Main Authors: CHAUDHURI, J, GONDHALEKAR, V, INCHEKEL, A, TALIA, J. E
Format: Article
Language:English
Subjects:
Applied sciences
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Metals. Metallurgy
Physics
Solid solution, precipitation, and dispersion hardening
aging
Treatment of materials and its effects on microstructure and properties
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The X-ray double crystal diffractometry technique was utilized to follow the aging and deformation characteristics in the 2090 Al--Li alloy. This non-destructive method is extremely sensitive to measure the strain and dislocation density within individual grains through X-ray rocking curves. For aging at 200 deg C, optimum aging needed for maximum hardness was 32 h. Dislocation multiplication was responsible for reduction of hardness beyond 32 h aging. In addition, when the specimen was deformed in tension, both compressive and tensile residual strains were found within individual grains. Graphs. 6 ref.--AA(UK/US).
ISSN:0022-2461
1573-4803
DOI:10.1007/BF00582463