Atom probe tomography data analysis procedure for precipitate and cluster identification in a Ti-Mo steel

An atom probe tomography data analysis procedure for identification of particles in a Ti-Mo steel is presented. This procedure has been used to characterise both carbide precipitates (larger particles) and solute clusters (smaller particles), as reported in an accompanying Mater. Sci. Eng. A paper [...

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Main Authors: S. Dhara, R.K.W. Marceau, K. Wood, T. Dorin, I.B. Timokhina, P.D. Hodgson
Format: Article
Language:English
Published: Elsevier 2018-06-01
Series:Data in Brief
Online Access:http://www.sciencedirect.com/science/article/pii/S235234091830307X
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author S. Dhara
R.K.W. Marceau
K. Wood
T. Dorin
I.B. Timokhina
P.D. Hodgson
author_facet S. Dhara
R.K.W. Marceau
K. Wood
T. Dorin
I.B. Timokhina
P.D. Hodgson
author_sort S. Dhara
collection DOAJ
description An atom probe tomography data analysis procedure for identification of particles in a Ti-Mo steel is presented. This procedure has been used to characterise both carbide precipitates (larger particles) and solute clusters (smaller particles), as reported in an accompanying Mater. Sci. Eng. A paper [1]. Particles were identified using the maximum separation method (cluster-finding algorithm) after resolving peak overlaps at several locations in the mass spectrum. The cluster-finding algorithm was applied to the data in a two-stage process to properly identify particles having a bimodal size distribution. Furthermore, possible misidentification of matrix atoms (mainly Fe) due to the local magnification effect (from the difference in field evaporation potential between the matrix and precipitates) has been resolved using an atomic density approach, comparing that measured experimentally using APT to the theoretical density of both the matrix and particles.
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spelling doaj.art-a36a3e2f064144bab4f31f3aa61924d72022-12-22T03:35:00ZengElsevierData in Brief2352-34092018-06-0118968982Atom probe tomography data analysis procedure for precipitate and cluster identification in a Ti-Mo steelS. Dhara0R.K.W. Marceau1K. Wood2T. Dorin3I.B. Timokhina4P.D. Hodgson5Deakin University, Institute for Frontier Materials, Geelong, VIC 3216, Australia; Corresponding authors.Deakin University, Institute for Frontier Materials, Geelong, VIC 3216, Australia; Corresponding authors.Australian Nuclear Science and Technology Organisation (ANSTO), Kirrawee, New South Wales, AustraliaDeakin University, Institute for Frontier Materials, Geelong, VIC 3216, AustraliaDeakin University, Institute for Frontier Materials, Geelong, VIC 3216, AustraliaDeakin University, Institute for Frontier Materials, Geelong, VIC 3216, AustraliaAn atom probe tomography data analysis procedure for identification of particles in a Ti-Mo steel is presented. This procedure has been used to characterise both carbide precipitates (larger particles) and solute clusters (smaller particles), as reported in an accompanying Mater. Sci. Eng. A paper [1]. Particles were identified using the maximum separation method (cluster-finding algorithm) after resolving peak overlaps at several locations in the mass spectrum. The cluster-finding algorithm was applied to the data in a two-stage process to properly identify particles having a bimodal size distribution. Furthermore, possible misidentification of matrix atoms (mainly Fe) due to the local magnification effect (from the difference in field evaporation potential between the matrix and precipitates) has been resolved using an atomic density approach, comparing that measured experimentally using APT to the theoretical density of both the matrix and particles.http://www.sciencedirect.com/science/article/pii/S235234091830307X
spellingShingle S. Dhara
R.K.W. Marceau
K. Wood
T. Dorin
I.B. Timokhina
P.D. Hodgson
Atom probe tomography data analysis procedure for precipitate and cluster identification in a Ti-Mo steel
Data in Brief
title Atom probe tomography data analysis procedure for precipitate and cluster identification in a Ti-Mo steel
title_full Atom probe tomography data analysis procedure for precipitate and cluster identification in a Ti-Mo steel
title_fullStr Atom probe tomography data analysis procedure for precipitate and cluster identification in a Ti-Mo steel
title_full_unstemmed Atom probe tomography data analysis procedure for precipitate and cluster identification in a Ti-Mo steel
title_short Atom probe tomography data analysis procedure for precipitate and cluster identification in a Ti-Mo steel
title_sort atom probe tomography data analysis procedure for precipitate and cluster identification in a ti mo steel
url http://www.sciencedirect.com/science/article/pii/S235234091830307X
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