Results 11 to 20 of about 6,142 (314)

Molecular Dynamics Simulation on Creep Behavior of Nanocrystalline TiAl Alloy [PDF]

open access: yesNanomaterials, 2020
TiAl alloy represents a new class of light and heat-resistant materials. In this study, the effect of temperature, pressure, and grain size on the high-temperature creep properties of nanocrystalline TiAl alloy have been studied through the molecular ...
Fei Zhao   +5 more
doaj   +2 more sources

Elimination of misrun and gas hole defects of investment casting TiAl alloy turbocharger based on numerical simulation and experimental study [PDF]

open access: goldChina Foundry, 2020
Casting technology of thin-wall TiAl alloy turbochargers was studied by investment casting and numerical simulation. Misruns and gas holes were the main defects observed in preliminary work due to the poor fluidity of alloy, and to gas entrapment.
Jun Zhao, Zhi-yong Zhang, Shi-bing Liu
doaj   +3 more sources

Comparative study on machinability and surface integrity of γ-TiAl alloy in laser assisted milling

open access: goldJournal of Materials Research and Technology
γ-TiAl alloy, as a typical difficult-to-cut material, is considered to have great potential in aero-engine manufacturing. However, it is difficult to achieve high-quality processing of γ-TiAl alloy using traditional cutting processes, due to the room ...
Yada Chi   +6 more
doaj   +2 more sources

Effects of plasma surface Ta alloying on the tribology behavior of γ-TiAl [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2021
To improve the wear resistance of γ-TiAl alloy, Ta alloy layer was prepared on surface by double glow plasma surface alloying technique. The tribology behavior of Ta alloy layer against Si3N4 at 25℃, 350℃ and 500℃ were comparatively studied.
Wei D.-B.   +5 more
doaj   +1 more source

A Study on Drilling Machinability of γ-TiAl Alloy [PDF]

open access: yesArchives of Metallurgy and Materials, 2021
Intermetallic γ-TiAl alloy has excellent properties at high temperatures and is thus attracting attention as a substitute for nickel-based superalloy parts for turbine engines.
Hyunseok Yang   +3 more
doaj   +1 more source

Effect of the anodization on high tempreture oxidation behavior and mechanical properties of TiAl alloy

open access: yesJournal of Aeronautical Materials, 2021
TiAl alloy was electrochemically anodized in ethylene glycol electrolyte containing with NH4F to prepare anodic film. The influence of anodization treatment on the oxidation behavior and mechanical properties of the anodized TiAl alloy were then ...
BAO Yating   +6 more
doaj   +1 more source

Production of spherical TiAl alloy powder by copper-assisted spheroidization

open access: yesJournal of Materials Research and Technology, 2023
A copper-assisted spheroidization method was developed for preparing spherical intermetallic compound TiAl powder. By introducing copper into TiAl alloy, the brittle L21 Heusler structure TiAlCu2 alloy with low melting point (1050 °C) was produced. After
Jin Qian   +5 more
doaj   +1 more source

Practical Use of Hot-Forged-Type Ti-42Al-5Mn and Various Recent Improvements

open access: yesMetals, 2021
The use of a hot-forged TiAl alloy enables the fabrication of large parts that are difficult to manufacture by casting or isothermal forging. Ti-42Al-5Mn (at%) is the world’s first TiAl alloy in this category and has been used to manufacture practical ...
Toshimitsu Tetsui
doaj   +1 more source

Constitutive equation and microstructure evolution of TiAl alloy during hot deformation

open access: yesMaterials Research Express, 2023
The hot deformation behavior of TiAl alloy is analyzed by combining the true stress–strain curve and microstructure analysis. The results show that the flow stress of TiAl alloy presents the characteristics of work hardening-dynamic softening, it ...
Shiwei Tian   +7 more
doaj   +1 more source

Current situation and prospect of TiAl-based alloy modified by carbon nanomaterials

open access: yesJournal of Aeronautical Materials, 2020
Carbon nanomaterials with low density, high strength, high elastic modulus, excellent conductivity and thermal conductivity are the ideal reinforcing phases for TiAl-based alloy.
WU Mingyu   +4 more
doaj   +1 more source

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