Long-range ordering in B2 FeAl: A resistometric study

Hubert Lang; K Rohrhofer; Peter Rosenkranz; Rafal Kozubski; Wolfgang Püschl; Wolfgang Pfeiler

doi:10.1016/S0966-9795(01)00135-2

Long-range ordering in B2 FeAl: A resistometric study

Hubert Lang, K Rohrhofer, Peter Rosenkranz, Rafal Kozubski, Wolfgang Püschl, Wolfgang Pfeiler

Publications: Contribution to journal › Article › Peer Reviewed

Abstract

Changes in the degree of order have been studied by residual electrical resistivity measurement (REST) in B2 long-range ordered Fe-44.8 at.% Al during isochronal and isothermal step-annealing temperature treatment. Restricted atomic mobility starts already below about 500 K. Assuming the vacancy concentration to remain constant over an extended temperature range, as known from the literature, the complicated variations of resistivity with temperature can be explained by two regimes of ordering: a fast local ordering due to the restricted motion of the vacancies at low temperatures and a very slow global adjustment of long-range order (LRO) within the total sample volume. Kinetic parameters are determined from the detailed process analysis of the ordering kinetics during isothermal small-step annealing. Using these parameters, the results of isochronal annealing treatment can be calculated with a very good correspondence to experiment. Œ 2002 Elsevier Science Ltd. All rights reserved.

Original language	English
Pages (from-to)	283-292
Number of pages	10
Journal	Intermetallics
Volume	10
Issue number	3
DOIs	https://doi.org/10.1016/S0966-9795(01)00135-2
Publication status	Published - 2002

Austrian Fields of Science 2012

1030 Physics, Astronomy

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10.1016/S0966-9795(01)00135-2

Cite this

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title = "Long-range ordering in B2 FeAl: A resistometric study",

abstract = "Changes in the degree of order have been studied by residual electrical resistivity measurement (REST) in B2 long-range ordered Fe-44.8 at.% Al during isochronal and isothermal step-annealing temperature treatment. Restricted atomic mobility starts already below about 500 K. Assuming the vacancy concentration to remain constant over an extended temperature range, as known from the literature, the complicated variations of resistivity with temperature can be explained by two regimes of ordering: a fast local ordering due to the restricted motion of the vacancies at low temperatures and a very slow global adjustment of long-range order (LRO) within the total sample volume. Kinetic parameters are determined from the detailed process analysis of the ordering kinetics during isothermal small-step annealing. Using these parameters, the results of isochronal annealing treatment can be calculated with a very good correspondence to experiment. {\OE} 2002 Elsevier Science Ltd. All rights reserved.",

author = "Hubert Lang and K Rohrhofer and Peter Rosenkranz and Rafal Kozubski and Wolfgang P{\"u}schl and Wolfgang Pfeiler",

note = "DOI: 10.1016/S0966-9795(01)00135-2 Coden: IERME Affiliations: Institut f{\"u}r Materialphysik, University of Vienna, Strudlhofgasse 4, A-1090 Vienna, Austria Adressen: Pfeiler, W.; Institut f{\"u}r Materialphysik; University of Vienna; Strudlhofgasse 4 A-1090 Vienna, Austria; email: [email protected] Import aus Scopus: 2-s2.0-0036497933 17.12.2007: Datenanforderung 2031 (Import Sachbearbeiter)",

year = "2002",

doi = "10.1016/S0966-9795(01)00135-2",

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T1 - Long-range ordering in B2 FeAl: A resistometric study

AU - Lang, Hubert

AU - Rohrhofer, K

AU - Rosenkranz, Peter

AU - Kozubski, Rafal

AU - Püschl, Wolfgang

AU - Pfeiler, Wolfgang

N1 - DOI: 10.1016/S0966-9795(01)00135-2 Coden: IERME Affiliations: Institut für Materialphysik, University of Vienna, Strudlhofgasse 4, A-1090 Vienna, Austria Adressen: Pfeiler, W.; Institut für Materialphysik; University of Vienna; Strudlhofgasse 4 A-1090 Vienna, Austria; email: [email protected] Import aus Scopus: 2-s2.0-0036497933 17.12.2007: Datenanforderung 2031 (Import Sachbearbeiter)

PY - 2002

Y1 - 2002

N2 - Changes in the degree of order have been studied by residual electrical resistivity measurement (REST) in B2 long-range ordered Fe-44.8 at.% Al during isochronal and isothermal step-annealing temperature treatment. Restricted atomic mobility starts already below about 500 K. Assuming the vacancy concentration to remain constant over an extended temperature range, as known from the literature, the complicated variations of resistivity with temperature can be explained by two regimes of ordering: a fast local ordering due to the restricted motion of the vacancies at low temperatures and a very slow global adjustment of long-range order (LRO) within the total sample volume. Kinetic parameters are determined from the detailed process analysis of the ordering kinetics during isothermal small-step annealing. Using these parameters, the results of isochronal annealing treatment can be calculated with a very good correspondence to experiment. Œ 2002 Elsevier Science Ltd. All rights reserved.

AB - Changes in the degree of order have been studied by residual electrical resistivity measurement (REST) in B2 long-range ordered Fe-44.8 at.% Al during isochronal and isothermal step-annealing temperature treatment. Restricted atomic mobility starts already below about 500 K. Assuming the vacancy concentration to remain constant over an extended temperature range, as known from the literature, the complicated variations of resistivity with temperature can be explained by two regimes of ordering: a fast local ordering due to the restricted motion of the vacancies at low temperatures and a very slow global adjustment of long-range order (LRO) within the total sample volume. Kinetic parameters are determined from the detailed process analysis of the ordering kinetics during isothermal small-step annealing. Using these parameters, the results of isochronal annealing treatment can be calculated with a very good correspondence to experiment. Œ 2002 Elsevier Science Ltd. All rights reserved.

U2 - 10.1016/S0966-9795(01)00135-2

DO - 10.1016/S0966-9795(01)00135-2

M3 - Article

SN - 0966-9795

VL - 10

SP - 283

EP - 292

JO - Intermetallics

JF - Intermetallics

IS - 3

ER -

Long-range ordering in B2 FeAl: A resistometric study

Abstract

Austrian Fields of Science 2012

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