Link to the University of Pittsburgh Homepage
Link to the University Library System Homepage Link to the Contact Us Form

An Effective Method to Estimate Composition Amplitude of Spinodal Decomposition for Atom Probe Tomography Validated by Phase Field Simulations

Xiong, Wei and Ågren, John and Zhou, Jing (2012) An Effective Method to Estimate Composition Amplitude of Spinodal Decomposition for Atom Probe Tomography Validated by Phase Field Simulations. (Unpublished)

[img]
Preview
PDF
Available under License : See the attached license file.

Download (1MB) | Preview
[img] Plain Text (licence)
Available under License : See the attached license file.

Download (1kB)

Abstract

Reasonable evaluation of composition amplitude in spinodal decomposition is a challenge to microanalysis of atom probe tomography, especially at early stages when phase separation is not prominent. This impedes quantitative analysis of spinodal structure in atom probe tomography as well as comparison with simulated results from phase field simulations. We hereby report an effective method to estimate the composition amplitude by constructing an amplitude density spectrum. This method can sensitively determine the composition amplitude at early stages. In particular, it substantially bridges experimental and simulation techniques comprising both discrete and continuum data in the study of spinodal decomposition. Moreover, it was found that the commonly adopted Langer-Bar-on-Miller method for atom probe analysis underestimates the composition amplitude of spinodal decomposition. Case studies have been performed on the Fe-Cr binary alloys.


Share

Citation/Export:
Social Networking:
Share |

Details

Item Type: Article
Status: Unpublished
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Xiong, Weiweixiong@pitt.eduWEIXIONG0000-0002-3825-1679
Ågren, John
Zhou, Jing
Date: 2012
Schools and Programs: Swanson School of Engineering > Mechanical Engineering and Materials Science
Refereed: No
Uncontrolled Keywords: cond-mat.mtrl-sci, cond-mat.mtrl-sci, physics.comp-ph, physics.ins-det
Additional Information: 5 pages, 4 figures
Date Deposited: 11 Apr 2022 12:32
Last Modified: 21 Aug 2024 17:07
URI: http://d-scholarship.pitt.edu/id/eprint/42531

Metrics

Monthly Views for the past 3 years

Plum Analytics


Actions (login required)

View Item View Item