In situ high-energy X-ray diffraction study and quantitative phase analysis in the α + γ phase field of titanium aluminides

La Reine A. Yeoh; Klaus Dieter Liss; Arno Bartels; Harald Chladil; Maxim Avdeev; Helmut Clemens; Rainer Gerling; Thomas Buslaps

doi:10.1016/j.scriptamat.2007.08.021

In situ high-energy X-ray diffraction study and quantitative phase analysis in the α + γ phase field of titanium aluminides

La Reine A. Yeoh^*, Klaus Dieter Liss, Arno Bartels, Harald Chladil, Maxim Avdeev, Helmut Clemens, Rainer Gerling, Thomas Buslaps

^*Corresponding author for this work

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

37 Scopus citations

Abstract

Quantitative atomic structure and phase analysis in the titanium aluminide intermetallic system of composition Ti-45Al-7.5Nb-0.5C (at.%) was conducted in situ by use of high-energy X-ray diffraction from a synchrotron and evaluated using the Rietveld method, implementing a model for atomic order in the α-phase which describes the order to disorder transition α₂ → α at the eutectoid temperature. The order parameter exhibits unexpected behavior and is entangled with the competition of different kinetic processes.

Original language	English
Pages (from-to)	1145-1148
Number of pages	4
Journal	Scripta Materialia
Volume	57
Issue number	12
DOIs	https://doi.org/10.1016/j.scriptamat.2007.08.021
State	Published - Dec 2007
Externally published	Yes

Keywords

Intermetallic compounds
Order-disorder phenomena
Phase transformation kinetics
Synchrotron radiation
Titanium aluminides

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@article{03af9916030240f7b2d5c4f7c1dd9aaa,

title = "In situ high-energy X-ray diffraction study and quantitative phase analysis in the α + γ phase field of titanium aluminides",

abstract = "Quantitative atomic structure and phase analysis in the titanium aluminide intermetallic system of composition Ti-45Al-7.5Nb-0.5C (at.%) was conducted in situ by use of high-energy X-ray diffraction from a synchrotron and evaluated using the Rietveld method, implementing a model for atomic order in the α-phase which describes the order to disorder transition α2 → α at the eutectoid temperature. The order parameter exhibits unexpected behavior and is entangled with the competition of different kinetic processes.",

keywords = "Intermetallic compounds, Order-disorder phenomena, Phase transformation kinetics, Synchrotron radiation, Titanium aluminides",

author = "Yeoh, {La Reine A.} and Liss, {Klaus Dieter} and Arno Bartels and Harald Chladil and Maxim Avdeev and Helmut Clemens and Rainer Gerling and Thomas Buslaps",

year = "2007",

month = dec,

doi = "10.1016/j.scriptamat.2007.08.021",

language = "英语",

volume = "57",

pages = "1145--1148",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Elsevier Ltd.",

number = "12",

}

In situ high-energy X-ray diffraction study and quantitative phase analysis in the α + γ phase field of titanium aluminides. / Yeoh, La Reine A.; Liss, Klaus Dieter; Bartels, Arno; Chladil, Harald; Avdeev, Maxim; Clemens, Helmut; Gerling, Rainer; Buslaps, Thomas.

In: Scripta Materialia, Vol. 57, No. 12, 12.2007, p. 1145-1148.

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

TY - JOUR

T1 - In situ high-energy X-ray diffraction study and quantitative phase analysis in the α + γ phase field of titanium aluminides

AU - Yeoh, La Reine A.

AU - Liss, Klaus Dieter

AU - Bartels, Arno

AU - Chladil, Harald

AU - Avdeev, Maxim

AU - Clemens, Helmut

AU - Gerling, Rainer

AU - Buslaps, Thomas

PY - 2007/12

Y1 - 2007/12

N2 - Quantitative atomic structure and phase analysis in the titanium aluminide intermetallic system of composition Ti-45Al-7.5Nb-0.5C (at.%) was conducted in situ by use of high-energy X-ray diffraction from a synchrotron and evaluated using the Rietveld method, implementing a model for atomic order in the α-phase which describes the order to disorder transition α2 → α at the eutectoid temperature. The order parameter exhibits unexpected behavior and is entangled with the competition of different kinetic processes.

AB - Quantitative atomic structure and phase analysis in the titanium aluminide intermetallic system of composition Ti-45Al-7.5Nb-0.5C (at.%) was conducted in situ by use of high-energy X-ray diffraction from a synchrotron and evaluated using the Rietveld method, implementing a model for atomic order in the α-phase which describes the order to disorder transition α2 → α at the eutectoid temperature. The order parameter exhibits unexpected behavior and is entangled with the competition of different kinetic processes.

KW - Intermetallic compounds

KW - Order-disorder phenomena

KW - Phase transformation kinetics

KW - Synchrotron radiation

KW - Titanium aluminides

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SP - 1145

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