Title :

Blind source separation aided characterization of the γ′ strengthening phase in an advanced nickel-based superalloy by spectroscopic 4D electron microscopy

Author(s) :

Rossouw, David [Auteur]
University of Cambridge [UK] [CAM]
Krakow, Robert [Auteur]
University of Cambridge [UK] [CAM]
Saghi, Zineb [Auteur]
University of Cambridge [UK] [CAM]
Yeoh, Catriona S.M. [Auteur]
University of Cambridge [UK] [CAM]
Burdet, Pierre [Auteur]
University of Cambridge [UK] [CAM]
Leary, Rowan K. [Auteur]
University of Cambridge [UK] [CAM]
de la Peña, Francisco [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Ducati, Caterina [Auteur]
University of Cambridge [UK] [CAM]
Rae, Catherine M.F. [Auteur]
University of Cambridge [UK] [CAM]
Midgley, Paul A. [Auteur]
University of Cambridge [UK] [CAM]

Journal title :

Acta Materialia

Abbreviated title :

Acta Materialia

Volume number :

107

Pages :

229-238

Publisher :

Elsevier BV

Publication date :

2016-04

ISSN :

1359-6454

HAL domain(s) :

Chimie/Matériaux
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
Physique [physics]/Physique [physics]/Géophysique [physics.geo-ph]
Physique [physics]/Astrophysique [astro-ph]
Planète et Univers [physics]/Astrophysique [astro-ph]
Planète et Univers [physics]/Sciences de la Terre

English abstract : [en]

The γ′ strengthening phase in an advanced nickel-based superalloy, ATI 718Plus, was characterized using a blind source separation applied to a four dimensional X-ray microanalysis dataset obtained by scanning transmission ...
Show more >The γ′ strengthening phase in an advanced nickel-based superalloy, ATI 718Plus, was characterized using a blind source separation applied to a four dimensional X-ray microanalysis dataset obtained by scanning transmission electron microscopy. Selected patterns in the X-ray spectra identified by independent component analysis were found to be spatially and chemically representative of the matrix (γ) and precipitate phases (γ′) present in the superalloy, enabling their size, shape and distribution to be determined. The three dimensional chemical reconstruction of the microstructure may provide insight into the role of the various alloying elements in the evolution of the microstructure at the nano-scale.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
INRAE
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Matériaux Terrestres et Planétaires

Submission date :

2024-02-01T09:47:21Z
2024-02-02T09:47:57Z