Direct atom probe tomography observations of concentration fluctuations in Fe-Cr solid solution

Jing Zhou; Joakim Odqvist; John Ågren; Andrei Ruban; Mattias Thuvander; Wei Xiong; Gregory B. Olson; Peter Hedström

doi:10.1016/j.scriptamat.2014.10.035

Direct atom probe tomography observations of concentration fluctuations in Fe-Cr solid solution

Jing Zhou, Joakim Odqvist, John Ågren, Andrei Ruban, Mattias Thuvander, Wei Xiong, Gregory B. Olson, Peter Hedström^*

^*Corresponding author for this work

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

The local concentration of atoms in an Fe-46.5 at.% Cr alloy, solution treated at four different temperatures above the miscibility gap, has been investigated using atom probe tomography. It is experimentally found that Cr atoms cluster in the solid solution and that the clustering tendency decreases with increasing temperature above the miscibility gap. These findings are corroborated by Monte Carlo simulations of the atomic short-range order, which show that clustering markedly decrease with increasing temperature from 800 to 1200 °C.

Original language	English (US)
Pages (from-to)	13-15
Number of pages	3
Journal	Scripta Materialia
Volume	98
DOIs	https://doi.org/10.1016/j.scriptamat.2014.10.035
State	Published - Mar 15 2015

Keywords

Atom probe tomography
Clustering
Fe-Cr
Spinodal decomposition
Stainless steels

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2014.10.035

Cite this

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title = "Direct atom probe tomography observations of concentration fluctuations in Fe-Cr solid solution",

abstract = "The local concentration of atoms in an Fe-46.5 at.% Cr alloy, solution treated at four different temperatures above the miscibility gap, has been investigated using atom probe tomography. It is experimentally found that Cr atoms cluster in the solid solution and that the clustering tendency decreases with increasing temperature above the miscibility gap. These findings are corroborated by Monte Carlo simulations of the atomic short-range order, which show that clustering markedly decrease with increasing temperature from 800 to 1200 °C.",

keywords = "Atom probe tomography, Clustering, Fe-Cr, Spinodal decomposition, Stainless steels",

author = "Jing Zhou and Joakim Odqvist and John {\AA}gren and Andrei Ruban and Mattias Thuvander and Wei Xiong and Olson, {Gregory B.} and Peter Hedstr{\"o}m",

note = "Funding Information: This work was performed within the VINN Excellence Center Hero-m, financed by Vinnova, the Swedish Governmental Agency for Innovation Systems, Swedish industry, and KTH Royal Institute of Technology. The authors are grateful for financial support from Carl Tryggers stiftelse f{\"o}r vetenskaplig forskning. J.Z. acknowledges the financial support from Erasmus Mundus Tandem. Publisher Copyright: {\textcopyright} 2014 Acta Materialia Inc.",

year = "2015",

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day = "15",

doi = "10.1016/j.scriptamat.2014.10.035",

language = "English (US)",

volume = "98",

pages = "13--15",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Elsevier Limited",

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TY - JOUR

T1 - Direct atom probe tomography observations of concentration fluctuations in Fe-Cr solid solution

AU - Zhou, Jing

AU - Odqvist, Joakim

AU - Ågren, John

AU - Ruban, Andrei

AU - Thuvander, Mattias

AU - Xiong, Wei

AU - Olson, Gregory B.

AU - Hedström, Peter

N1 - Funding Information: This work was performed within the VINN Excellence Center Hero-m, financed by Vinnova, the Swedish Governmental Agency for Innovation Systems, Swedish industry, and KTH Royal Institute of Technology. The authors are grateful for financial support from Carl Tryggers stiftelse för vetenskaplig forskning. J.Z. acknowledges the financial support from Erasmus Mundus Tandem. Publisher Copyright: © 2014 Acta Materialia Inc.

PY - 2015/3/15

Y1 - 2015/3/15

N2 - The local concentration of atoms in an Fe-46.5 at.% Cr alloy, solution treated at four different temperatures above the miscibility gap, has been investigated using atom probe tomography. It is experimentally found that Cr atoms cluster in the solid solution and that the clustering tendency decreases with increasing temperature above the miscibility gap. These findings are corroborated by Monte Carlo simulations of the atomic short-range order, which show that clustering markedly decrease with increasing temperature from 800 to 1200 °C.

AB - The local concentration of atoms in an Fe-46.5 at.% Cr alloy, solution treated at four different temperatures above the miscibility gap, has been investigated using atom probe tomography. It is experimentally found that Cr atoms cluster in the solid solution and that the clustering tendency decreases with increasing temperature above the miscibility gap. These findings are corroborated by Monte Carlo simulations of the atomic short-range order, which show that clustering markedly decrease with increasing temperature from 800 to 1200 °C.

KW - Atom probe tomography

KW - Clustering

KW - Fe-Cr

KW - Spinodal decomposition

KW - Stainless steels

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DO - 10.1016/j.scriptamat.2014.10.035

M3 - Article

AN - SCOPUS:84919363737

SN - 1359-6462

VL - 98

SP - 13

EP - 15

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Direct atom probe tomography observations of concentration fluctuations in Fe-Cr solid solution

Abstract

Keywords

ASJC Scopus subject areas

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