Phase equilibria in the Ti–Al–Cr system at 1000 °C

Shuai Xu; Heng Zhang; Gang Yang; Yongfeng Liang; Xiangjun Xu; Jianping He; Junpin Lin

doi:10.1016/j.jallcom.2020.154236

Phase equilibria in the Ti–Al–Cr system at 1000 °C

Shuai Xu^*, Heng Zhang, Gang Yang, Yongfeng Liang, Xiangjun Xu, Jianping He, Junpin Lin

^*Corresponding author for this work

Materials Science and Engineering

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

1 Scopus citations

Abstract

The phase equilibria in the Ti–Al and Ti–Cr binary systems and the isothermal section of the Ti–Al–Cr ternary system at 1000 °C were constructed from results obtained by studying diffusion multiples and quenched alloys with a scanning electron microscope in backscattered electron mode (SEM-BSE), a scanning electron microscope equipped with energy-dispersive X-ray spectroscopy (SEM-EDX) and an electron probe microanalysis (EPMA). Seven three-phase regions and the corresponding single- or two-phase regions are observed in this work and compared to previous experimental and calculated results. The regions of the L12, β (Ti) and β (Cr) phases are larger than those in the prior calculated results. The three-phase regions are also different with the previous reported experimental results.

Original language	English
Article number	154236
Journal	Journal of Alloys and Compounds
Volume	826
DOIs	https://doi.org/10.1016/j.jallcom.2020.154236
State	Published - 15 Jun 2020

Keywords

Diffusion multiples
Intermetallics
Phase diagram
Phase transformation
TiAl alloy
Ti–Al–Cr

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title = "Phase equilibria in the Ti–Al–Cr system at 1000 °C",

abstract = "The phase equilibria in the Ti–Al and Ti–Cr binary systems and the isothermal section of the Ti–Al–Cr ternary system at 1000 °C were constructed from results obtained by studying diffusion multiples and quenched alloys with a scanning electron microscope in backscattered electron mode (SEM-BSE), a scanning electron microscope equipped with energy-dispersive X-ray spectroscopy (SEM-EDX) and an electron probe microanalysis (EPMA). Seven three-phase regions and the corresponding single- or two-phase regions are observed in this work and compared to previous experimental and calculated results. The regions of the L12, β (Ti) and β (Cr) phases are larger than those in the prior calculated results. The three-phase regions are also different with the previous reported experimental results.",

keywords = "Diffusion multiples, Intermetallics, Phase diagram, Phase transformation, TiAl alloy, Ti–Al–Cr",

author = "Shuai Xu and Heng Zhang and Gang Yang and Yongfeng Liang and Xiangjun Xu and Jianping He and Junpin Lin",

year = "2020",

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doi = "10.1016/j.jallcom.2020.154236",

language = "英语",

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T1 - Phase equilibria in the Ti–Al–Cr system at 1000 °C

AU - Xu, Shuai

AU - Zhang, Heng

AU - Yang, Gang

AU - Liang, Yongfeng

AU - Xu, Xiangjun

AU - He, Jianping

AU - Lin, Junpin

PY - 2020/6/15

Y1 - 2020/6/15

N2 - The phase equilibria in the Ti–Al and Ti–Cr binary systems and the isothermal section of the Ti–Al–Cr ternary system at 1000 °C were constructed from results obtained by studying diffusion multiples and quenched alloys with a scanning electron microscope in backscattered electron mode (SEM-BSE), a scanning electron microscope equipped with energy-dispersive X-ray spectroscopy (SEM-EDX) and an electron probe microanalysis (EPMA). Seven three-phase regions and the corresponding single- or two-phase regions are observed in this work and compared to previous experimental and calculated results. The regions of the L12, β (Ti) and β (Cr) phases are larger than those in the prior calculated results. The three-phase regions are also different with the previous reported experimental results.

AB - The phase equilibria in the Ti–Al and Ti–Cr binary systems and the isothermal section of the Ti–Al–Cr ternary system at 1000 °C were constructed from results obtained by studying diffusion multiples and quenched alloys with a scanning electron microscope in backscattered electron mode (SEM-BSE), a scanning electron microscope equipped with energy-dispersive X-ray spectroscopy (SEM-EDX) and an electron probe microanalysis (EPMA). Seven three-phase regions and the corresponding single- or two-phase regions are observed in this work and compared to previous experimental and calculated results. The regions of the L12, β (Ti) and β (Cr) phases are larger than those in the prior calculated results. The three-phase regions are also different with the previous reported experimental results.

KW - Diffusion multiples

KW - Intermetallics

KW - Phase diagram

KW - Phase transformation

KW - TiAl alloy

KW - Ti–Al–Cr

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