2007/03/31 by Richard A. Karnesky, Chantal K. Sudbrack, David N. Seidman · 2 citations
Engineering · Physics and Astronomy · #Advanced Materials Characterization Techniques #High Temperature Alloys and Creep #Intermetallics and Advanced Alloy Properties #cond-mat.mtrl-sci
paper · pdf · doi:10.1016/j.scriptamat.2007.04.020
published as Scripta Materialia 57:4 (2007) 353-356 · Accepted for publication in Scripta Materialia, added information about local magnification effects
arxiv created 2007/04/16 · openalex publication_date 2007/05/25 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
An algorithm is presented to fit precipitates in atom probe tomographic data sets as equivalent ellipsoids. Unlike previous techniques, which measure only the radius of gyration, these ellipsoids retain the moments of inertia and principle axes of the original precipitate, preserving crystallographic orientational information. The algorithm is applied to study interconnected gamma prime precipitates (L12) in the Gamma-matrix (FCC) of a Ni-Al-Cr alloy. The precipitates are found to coagulate along <110>-type directions.