Transmission electron microscopy characterization of thermomechanically treated Al3Ti-(8, 10, 15)% Cr intermetallics

Ok Jun Jang; Cheol Woong Yang; Dong Bok Lee

doi:10.1017/S1431927613012403

Transmission electron microscopy characterization of thermomechanically treated Al₃Ti-(8, 10, 15)% Cr intermetallics

Ok Jun Jang
, Cheol Woong Yang
, Dong Bok Lee

Department of Advanced Materials Science and Engineering

Sungkyunkwan University

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

1 Scopus citations

Abstract

The ordered L12-type Al3Ti-(8, 10, 15)% Cr intermetallic compounds, namely, Al67Ti25Cr8, Al66Ti24Cr10, and Al59Ti26Cr15, were prepared by induction melting followed by thermomechanical treatment. Their microstructure, compositional variation, and crystal structure were characterized using X-ray diffraction, optical microscopy, and scanning and transmission electron microscopy equipped with energy-dispersive spectroscopy. The Al67Ti25Cr8 alloy consisted of the L12-Al3Ti matrix and precipitates of α2-Ti3Al, D022-Al3Ti, and γ-TiAl. The Al66Ti24Cr10 and Al59Ti26Cr15 alloys consisted of the L12-Al3Ti matrix and grains of α-TiAl and β-Cr.

Original language	English
Pages (from-to)	89-94
Number of pages	6
Journal	Microscopy and Microanalysis
Volume	19
Issue number	SUPPL. 5
DOIs	https://doi.org/10.1017/S1431927613012403
State	Published - Aug 2013

Keywords

chromium
energy-dispersive spectrometry
intermetallics
phase diagram
titanium trialuminides
transmission electron microscopy

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10.1017/S1431927613012403

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title = "Transmission electron microscopy characterization of thermomechanically treated Al3Ti-(8, 10, 15)\% Cr intermetallics",

abstract = "The ordered L12-type Al3Ti-(8, 10, 15)\% Cr intermetallic compounds, namely, Al67Ti25Cr8, Al66Ti24Cr10, and Al59Ti26Cr15, were prepared by induction melting followed by thermomechanical treatment. Their microstructure, compositional variation, and crystal structure were characterized using X-ray diffraction, optical microscopy, and scanning and transmission electron microscopy equipped with energy-dispersive spectroscopy. The Al67Ti25Cr8 alloy consisted of the L12-Al3Ti matrix and precipitates of α2-Ti3Al, D022-Al3Ti, and γ-TiAl. The Al66Ti24Cr10 and Al59Ti26Cr15 alloys consisted of the L12-Al3Ti matrix and grains of α-TiAl and β-Cr.",

keywords = "chromium, energy-dispersive spectrometry, intermetallics, phase diagram, titanium trialuminides, transmission electron microscopy",

author = "Jang, \{Ok Jun\} and Yang, \{Cheol Woong\} and Lee, \{Dong Bok\}",

year = "2013",

month = aug,

doi = "10.1017/S1431927613012403",

language = "English",

volume = "19",

pages = "89--94",

journal = "Microscopy and Microanalysis",

issn = "1431-9276",

publisher = "Oxford University Press",

number = "SUPPL. 5",

}

TY - JOUR

T1 - Transmission electron microscopy characterization of thermomechanically treated Al3Ti-(8, 10, 15)% Cr intermetallics

AU - Jang, Ok Jun

AU - Yang, Cheol Woong

AU - Lee, Dong Bok

PY - 2013/8

Y1 - 2013/8

N2 - The ordered L12-type Al3Ti-(8, 10, 15)% Cr intermetallic compounds, namely, Al67Ti25Cr8, Al66Ti24Cr10, and Al59Ti26Cr15, were prepared by induction melting followed by thermomechanical treatment. Their microstructure, compositional variation, and crystal structure were characterized using X-ray diffraction, optical microscopy, and scanning and transmission electron microscopy equipped with energy-dispersive spectroscopy. The Al67Ti25Cr8 alloy consisted of the L12-Al3Ti matrix and precipitates of α2-Ti3Al, D022-Al3Ti, and γ-TiAl. The Al66Ti24Cr10 and Al59Ti26Cr15 alloys consisted of the L12-Al3Ti matrix and grains of α-TiAl and β-Cr.

AB - The ordered L12-type Al3Ti-(8, 10, 15)% Cr intermetallic compounds, namely, Al67Ti25Cr8, Al66Ti24Cr10, and Al59Ti26Cr15, were prepared by induction melting followed by thermomechanical treatment. Their microstructure, compositional variation, and crystal structure were characterized using X-ray diffraction, optical microscopy, and scanning and transmission electron microscopy equipped with energy-dispersive spectroscopy. The Al67Ti25Cr8 alloy consisted of the L12-Al3Ti matrix and precipitates of α2-Ti3Al, D022-Al3Ti, and γ-TiAl. The Al66Ti24Cr10 and Al59Ti26Cr15 alloys consisted of the L12-Al3Ti matrix and grains of α-TiAl and β-Cr.

KW - chromium

KW - energy-dispersive spectrometry

KW - intermetallics

KW - phase diagram

KW - titanium trialuminides

KW - transmission electron microscopy

UR - https://www.scopus.com/pages/publications/84881467707

U2 - 10.1017/S1431927613012403

DO - 10.1017/S1431927613012403

M3 - Article

AN - SCOPUS:84881467707

SN - 1431-9276

VL - 19

SP - 89

EP - 94

JO - Microscopy and Microanalysis

JF - Microscopy and Microanalysis

IS - SUPPL. 5

ER -

Transmission electron microscopy characterization of thermomechanically treated Al₃Ti-(8, 10, 15)% Cr intermetallics

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Keywords

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