Results 11 to 20 of about 3,411 (304)

Effect of Sn addition on the mechanical properties and high-temperature oxidation resistance of intermetallic TiAl alloys by first principles study and experimental investigation

open access: yesJournal of Materials Research and Technology, 2022
Tin (Sn) can be used as an effective TiAl powder sintering aid, but it is unclear whether Sn will deteriorate its properties as a micro-alloyed element in TiAl intermetallic.
Ce Zhang   +9 more
doaj   +1 more source

Evaluation of Forged TiAl Alloy Usefulness Based on Their Impact Resistance

open access: yesMetals, 2023
The purpose of this study is to determine if forged TiAl alloys are worth using for small parts such as jet engine turbine blades. As part of this goal, this study investigated ways to improve the impact resistance of forged TiAl alloys and compared them
Toshimitsu Tetsui
doaj   +1 more source

On the Bauschinger effect in TiAl alloys [PDF]

open access: yesActa Materialia, 2016
Abstract The Bauschinger effect has been investigated at room temperature on a multiphase titanium aluminide alloy based on γ(TiAl). The effect of strain reversal was assessed by comparing uni-directional tensile tests with those performed on specimens made from pre-compressed material.
Paul, J.D.H., Hoppe, R., Appel, F.
openaire   +2 more sources

Structural Change of TiAl Alloy under Uniaxial Tension and Compression in the <001> Direction: A Molecular Dynamics Study

open access: yesMetals, 2021
TiAl alloys can be used in aircraft and high-performance vehicle engines owing to their structural stability at high temperatures and their light weight.
Rizal Arifin   +6 more
doaj   +1 more source

Tailoring the Microstructure of Laser-Additive-Manufactured Titanium Aluminide Alloys via In Situ Alloying and Parameter Variation

open access: yesMetals, 2023
Titanium aluminide (TiAl) alloys have emerged as promising materials for high-temperature applications due to their unique combination of high-temperature strength, low density, and excellent oxidation resistance.
Igor Polozov   +3 more
doaj   +1 more source

Development of CALPHAD database for both Ti- and TiAl-based alloys [PDF]

open access: yesMATEC Web of Conferences, 2020
Phase diagram calculations and phase transformation simulations have been widely employed to materials design and process optimization. Recent development of a 27-element thermodynamic database (TCTI2) together with a compatible mobility database (MOBTI3)
Yang Yang   +3 more
doaj   +1 more source

Effect of rare earth Yb and Ce on high temperature oxidation resistance of TiAl alloys

open access: yesFenmo yejin jishu, 2023
TiAl alloys added with the trace rare earth elements were prepared by spark plasma sintering (SPS). The effects of rare earth elements Yb and Ce on the high temperature oxidation resistance of TiAl alloys were investigated. The microstructure, morphology,
ZHANG Xiaoyan   +6 more
doaj   +1 more source

Combustion of TiAl alloy in nitrogen [PDF]

open access: yesCombustion, Explosion, and Shock Waves, 2015
It 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.
B. Sh. Braverman   +4 more
openaire   +2 more sources

Temperature-dependent deformation processes in two-phase TiAl + Ti3Al nano-polycrystalline alloys

open access: yesMaterials & Design, 2021
Although deformation processes in single-phase nano-polycrystalline alloys at different temperatures are well described, the deformation mechanism in two-phase nano-polycrystalline alloys at different temperatures is still unclear.
Pengtao Li   +7 more
doaj   +1 more source

Characteristic effects of alloying elements on β solidifying titanium aluminides: A review

open access: yesHeliyon, 2020
The high strength-to-weight ratio property of titanium aluminide (TiAl) based intermetallic alloys makes researchers regard this type of material as a potential replacement for the heavier superalloys of nickel.
Sadiq Abiola Raji   +3 more
doaj   +1 more source

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