English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
  Atom probe tomography investigation of heterogeneous short-range ordering in the ‘komplex’ phase state (K-state) of Fe–18Al (at.%)

Marceau, R. K. W., Ceguerra, A. V., Breen, A. J., Palm, M., Stein, F., Ringer, S. P., et al. (2015). Atom probe tomography investigation of heterogeneous short-range ordering in the ‘komplex’ phase state (K-state) of Fe–18Al (at.%). Intermetallics, 64, 23-31. doi:10.1016/j.intermet.2015.04.005.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0027-12FB-5 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0027-12FD-1
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Marceau, Ross K. W.1, 2, Author              
Ceguerra, Anna Vallarta3, 4, Author              
Breen, Andrew J.4, 5, Author              
Palm, Martin6, Author              
Stein, Frank6, Author              
Ringer, Simon P.3, 4, Author              
Raabe, Dierk2, Author              
Affiliations:
1Deakin University, Institute for Frontier Materials, Geelong Waurn Ponds CampusVIC, Australia, ou_persistent22              
2Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863381              
3Australian Centre for Microscopy and Microanalysis, School of Aerospace, Mechatronic and Mechanical Engineering, University of Sydney, NSW 2006, Australia, ou_persistent22              
4School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, NSW, Australia, ou_persistent22              
5Australian Centre for Microscopy and Microanalysis, University of Sydney, NSW, Australia, ou_persistent22              
6Development and Characterisation of New Materials, Materials Technology, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863368              

Content

show
hide
Free keywords: A. intermetallics (aluminides, silicides); B. order/disorder transformation; D. site occupancy; F. atom probe; F. tomography
 Abstract: We study an Fe–18Al (at.%) alloy after various thermal treatments at different times (24–336 h) and temperatures (250–1100 °C) to determine the nature of the so-called ‘komplex’ phase state (or “K-state”), which is common to other alloy systems having compositions at the boundaries of known order-disorder transitions and is characterised by heterogeneous short-range-ordering (SRO). This has been done by direct observation using atom probe tomography (APT), which reveals that nano-sized, ordered regions/particles do not exist. Also, by employing shell-based analysis of the three-dimensional atomic positions, we have determined chemically sensitive, generalised multicomponent short-range order (GM-SRO) parameters, which are compared with published pairwise SRO parameters derived from bulk, volume-averaged measurement techniques (e.g. X-ray and neutron scattering, Mössbauer spectroscopy) and combined ab-initio and Monte Carlo simulations. This analysis procedure has general relevance for other alloy systems where quantitative chemical-structure evaluation of local atomic environments is required to understand ordering and partial ordering phenomena that affect physical and mechanical properties.

Details

show
hide
Language(s): eng - English
 Dates: 2015-05-162015-09
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1016/j.intermet.2015.04.005
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Intermetallics
  Abbreviation : Intermetallics
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Barking, Essex, England : Elsevier
Pages: - Volume / Issue: 64 Sequence Number: - Start / End Page: 23 - 31 Identifier: ISSN: 0966-9795
CoNE: /journals/resource/954925582175