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Nanoscale, 2021
In order to acquire TiAl composites with a multi-scale reinforcing phase, and to improve the microstructure and tensile properties at elevated temperatures, TiAl alloys have been prepared with different added carbon content levels via vacuum arc melting.
H. Fang +6 more
semanticscholar +1 more source
In order to acquire TiAl composites with a multi-scale reinforcing phase, and to improve the microstructure and tensile properties at elevated temperatures, TiAl alloys have been prepared with different added carbon content levels via vacuum arc melting.
H. Fang +6 more
semanticscholar +1 more source
Journal of Materials Research, 2021
In recent years, an innovative twin-wire plasma arc additive manufacturing (TW-PAAM) process is conducted to the in situ alloying of TiAl alloys. As a newly invented method of TiAl alloy fabrication, the microcrack defect is a great concern.
Chen Shen +9 more
semanticscholar +1 more source
In recent years, an innovative twin-wire plasma arc additive manufacturing (TW-PAAM) process is conducted to the in situ alloying of TiAl alloys. As a newly invented method of TiAl alloy fabrication, the microcrack defect is a great concern.
Chen Shen +9 more
semanticscholar +1 more source
Laser Powder Bed Fusion of an Engineering Intermetallic TiAl Alloy
Materials & Design (1980-2015), 2021The 4th generation of intermetallic γ-TiAl based alloys, the so-called TNM alloy with its nominal composition of Ti-43.5Al-4Nb-1Mo-0.1B (in at.%), gained attention especially as high temperature lightweight structural materials.
D. Schimbäck +4 more
semanticscholar +1 more source
Cyclic-oxidation behavior of TiAl and of TiAl alloys
Oxidation of Metals, 1993The cyclic-oxidation behavior of (in w/o) Ti-36Al, Ti-35Al-0.1C, Ti-35Al-1.4V-0.1C and Ti-35Al-5Nb-0.1C was studied between 800 and 1000° C in air. A few experiments were also performed in oxygen. Scale spallation after oxidation in air occurs during cooling on TiAl, TiAl-C, and TiAl-V at or close to the metal/scale interface when a critical scale ...
Michael Schütze, A. Rahmel, S. Becker
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Solidification of TiAl-based alloys [PDF]
MRS Proceedings, 2008 AbstractTitanium aluminides containing high niobium additions emerged as an attractive alloy family for automotive and aero-engine applications. Their processing by near net shape casting is rather demanding, not only due to easy contamination but also due to the fact that microstructure formation during solidification and subsequent solid state ...
Julien Zollinger +5 more
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Intermetallics, 1998
Abstract The growth of TiAl alloys over a range of Al concentrations has been considered for ingots processed by the floating zone technique. For Al-rich alloys, single crystals of γ-TiAl cannot be grown for compositions below Ti-54 at% Al since a banded microstructure forms due to the limitations imposed by the L + α → γ peritectic reaction. However,
Haruyuki Inui +2 more
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Abstract The growth of TiAl alloys over a range of Al concentrations has been considered for ingots processed by the floating zone technique. For Al-rich alloys, single crystals of γ-TiAl cannot be grown for compositions below Ti-54 at% Al since a banded microstructure forms due to the limitations imposed by the L + α → γ peritectic reaction. However,
Haruyuki Inui +2 more
openaire +2 more sources
Combustion of TiAl alloy in nitrogen
Combustion, Explosion, and Shock Waves, 2015It has been shown that Ti–Al–N ternary compounds, belonging to MAX phases (ceramic materials that can be processed as metals) can be produced by combustion of a granular powder of T65Yu35 (TiAl) alloy in nitrogen flow at a pressure close to atmospheric pressure. Combustion is accompanied by transfer of part of the aluminum through the gas phase.
O. K. Lepakova +4 more
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MRS Proceedings, 1992
The forging and rolling behavior of binary Ti-48Al and ternary Ti-48Al-2Cr (at-%) on laboratory and industrial scale is investigated. Arc-melted and cast ingots are used for forging operations. In order to enable the determination of optimized forging and rolling conditions the plastic flow behavior was examined for low ( −2 s −1 ) and high (1 s −1 ...
P. Schretter +4 more
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The forging and rolling behavior of binary Ti-48Al and ternary Ti-48Al-2Cr (at-%) on laboratory and industrial scale is investigated. Arc-melted and cast ingots are used for forging operations. In order to enable the determination of optimized forging and rolling conditions the plastic flow behavior was examined for low ( −2 s −1 ) and high (1 s −1 ...
P. Schretter +4 more
openaire +2 more sources
Superconductivity of α-TiAl alloys
Physica C: Superconductivity, 2000Abstract The superconducting transition temperature Tc of α TiAl alloys has been measured up to 10 atomic percentage of Al. Tc monotonously increases with a tendency to saturation for high Al content.
Jing Xiunian +5 more
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Advanced Intermetallic TiAl Alloys
Materials Science Forum, 2016Challenging issues concerning energy efficiency and environmental politics require novel approaches to materials design. A recent example with regard to structural materials is the emergence of lightweight intermetallic TiAl alloys. Their excellent high-temperature mechanical properties, low density, and high stiffness constitute a profile perfectly ...
Svea Mayer, Helmut Clemens
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