Quantitative Characterization of Precipitate Microstructures in Metallic Alloys Using Small-Angle Scattering

Quantitatively characterizing precipitate microstructures in metals by small-angle scattering poses specific challenges as compared to other areas of application of this technique. In terms of size and morphology evaluation, these include the presence of a significant size distribution, non-isotropi...

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Published inMetallurgical and materials transactions. A, Physical metallurgy and materials science Vol. 44; no. 1; pp. 77 - 86
Main Authors Deschamps, Alexis, de Geuser, Frédéric
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.01.2013
Springer Nature B.V
Springer Verlag/ASM International
Subjects
Alloys
Characterization and Evaluation of Materials
Chemical Sciences
Chemistry and Materials Science
Material chemistry
Materials Science
Metallic Materials
Microstructure
Nanotechnology
Scattering
Structural Materials
Surfaces and Interfaces
Symposium: Neutron and X-Ray Studies of Advanced Materials V
Thin Films
X-rays
Atom Probe Tomography
Precipitate Volume Fraction
Friction Stir Welding
Radial Average
Habit Plane
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Summary:Quantitatively characterizing precipitate microstructures in metals by small-angle scattering poses specific challenges as compared to other areas of application of this technique. In terms of size and morphology evaluation, these include the presence of a significant size distribution, non-isotropic shapes, and interpretation complicated by a partial averaging due to a non-random texture. In terms of volume fraction evaluation, these include the imperfect knowledge of the chemical composition of very small objects. This paper, based on a presentation given at the “Neutron and X-Ray Studies of Advanced Materials V: Centennial” symposium of the 2012 TMS conference, reviews the strategies that can be applied in different characteristic cases to obtain a robust quantification of precipitate microstructures.
ISSN:1073-5623
1543-1940
DOI:10.1007/s11661-012-1435-7