Surface analyses of high-temperature oxidated TiAl-based alloys

Henglei Qu; Lian Zhou; Hairong Wei

Surface analyses of high-temperature oxidated TiAl-based alloys

Henglei Qu, Lian Zhou, Hairong Wei

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

Abstract

Five TiAl-based alloys (Ti-50Al, Ti-48Al, Ti-52Al, Ti-48Al-1Cr, Ti-48Al-4Cr) oxidized interruptedly at 700°C-1000°C for 100 h in static air. The surface morphologies, phase constitutions and particle distributions of the oxide films formed on the alloys were observed and analyzed using SEM/EDS and XRD techniques. The results show that the oxidation products mainly consist of R-TiO ₂ and α-Al ₂O ₃. The oxides exist in mixture state when the alloys oxidized at low temperature for short time, while a pillar-like rutile layer forms on the porous mixture oxide when the alloys oxidized at high temperature for long time.

Original language	English
Pages (from-to)	93
Number of pages	1
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	29
Issue number	2
State	Published - 2000
Externally published	Yes

Keywords

High temperature oxidation
Surface analysis
TiAl

Cite this

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title = "Surface analyses of high-temperature oxidated TiAl-based alloys",

abstract = "Five TiAl-based alloys (Ti-50Al, Ti-48Al, Ti-52Al, Ti-48Al-1Cr, Ti-48Al-4Cr) oxidized interruptedly at 700°C-1000°C for 100 h in static air. The surface morphologies, phase constitutions and particle distributions of the oxide films formed on the alloys were observed and analyzed using SEM/EDS and XRD techniques. The results show that the oxidation products mainly consist of R-TiO 2 and α-Al 2O 3. The oxides exist in mixture state when the alloys oxidized at low temperature for short time, while a pillar-like rutile layer forms on the porous mixture oxide when the alloys oxidized at high temperature for long time.",

keywords = "High temperature oxidation, Surface analysis, TiAl",

author = "Henglei Qu and Lian Zhou and Hairong Wei",

year = "2000",

language = "英语",

volume = "29",

pages = "93",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

issn = "1002-185X",

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T1 - Surface analyses of high-temperature oxidated TiAl-based alloys

AU - Qu, Henglei

AU - Zhou, Lian

AU - Wei, Hairong

PY - 2000

Y1 - 2000

N2 - Five TiAl-based alloys (Ti-50Al, Ti-48Al, Ti-52Al, Ti-48Al-1Cr, Ti-48Al-4Cr) oxidized interruptedly at 700°C-1000°C for 100 h in static air. The surface morphologies, phase constitutions and particle distributions of the oxide films formed on the alloys were observed and analyzed using SEM/EDS and XRD techniques. The results show that the oxidation products mainly consist of R-TiO 2 and α-Al 2O 3. The oxides exist in mixture state when the alloys oxidized at low temperature for short time, while a pillar-like rutile layer forms on the porous mixture oxide when the alloys oxidized at high temperature for long time.

AB - Five TiAl-based alloys (Ti-50Al, Ti-48Al, Ti-52Al, Ti-48Al-1Cr, Ti-48Al-4Cr) oxidized interruptedly at 700°C-1000°C for 100 h in static air. The surface morphologies, phase constitutions and particle distributions of the oxide films formed on the alloys were observed and analyzed using SEM/EDS and XRD techniques. The results show that the oxidation products mainly consist of R-TiO 2 and α-Al 2O 3. The oxides exist in mixture state when the alloys oxidized at low temperature for short time, while a pillar-like rutile layer forms on the porous mixture oxide when the alloys oxidized at high temperature for long time.

KW - High temperature oxidation

KW - Surface analysis

KW - TiAl

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M3 - 文章

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SN - 1002-185X

VL - 29

SP - 93

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 2

ER -

Surface analyses of high-temperature oxidated TiAl-based alloys

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Keywords

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