Results 1 to 10 of about 355 (178)

Oxidation behavior of fully dense TiAl-based composites with a controlled laminated microstructure

open access: yesJournal of Materials Research and Technology, 2021
A novel laminated TiAl matrix composite (LMC) consisting of alternating equiaxed grain layers (EGLs) and fully lamellar grain layers (FGLs) has been fabricated successfully by hot pressing of alternating Ti/Al–6Si foils and subsequent multi-step reaction
Xuesong Yang   +5 more
doaj   +1 more source

Sensitivity Analysis of Tool Wear in Drilling of Titanium Aluminides

open access: yesMetals, 2019
In the aerospace industry, a large number of holes need to be drilled to mechanically connect the components of aircraft engines. The working conditions for such components demand a good response of their mechanical properties at high temperatures.
Aitor Beranoagirre   +4 more
doaj   +1 more source

Deoxidation of Titanium Aluminides.

open access: yesDENKI-SEIKO[ELECTRIC FURNACE STEEL], 1993
The deoxidation of TiAl is one of the key technologies to recycle the scrap contaminated through the casting processes. Fairy high amount of aluminum, more than 30%, enables the few deoxidation methods such as evaporation of aluminum oxide or Ca addition, while they are inapplicable to conventional Ti-alloys containing lower aluminum.The TiAl with 0.21%
Shibata, Tomoki, Demukai, Noboru
openaire   +2 more sources

Laser powder bed fusion of titanium aluminides: An investigation on site-specific microstructure evolution mechanism

open access: yesMaterials & Design, 2021
Metal additive manufacturing (AM) improves the design flexibility of titanium aluminides (TiAl-based alloys) as a new class of high-temperature alloys towards widespread applications.
Xing Zhang   +4 more
doaj   +1 more source

Robust γ-TiAl Dual Microstructure Concept by Advanced Electron Beam Powder Bed Fusion Technology

open access: yesCrystals, 2023
The dual microstructure concept for gamma titanium aluminides (γ-TiAl) processed via electron beam–powder bed fusion (PBF-EB) provides a huge potential for more efficient jet turbine engines.
Marcel Reith   +2 more
doaj   +1 more source

Microstructural Formation and Creep Resistance of Sintered Titanium Aluminides with Co and Ni Addition [PDF]

open access: yesMaterials Research
One of the most effective approaches for the densification of titanium aluminides processed by powder metallurgy involves the addition of elements that induce the formation of a liquid phase during sintering. This work investigated the sintering behavior
Warlen Alves Monfardini, Juliano Soyama
doaj   +1 more source

Spark Plasma Sintering of Titanium Aluminides: A Progress Review on Processing, Structure-Property Relations, Alloy Development and Challenges

open access: yesMetals, 2020
Titanium aluminides (TiAl) have the potential of substituting nickel-based superalloys (NBSAs) in the aerospace industries owing to their lightweight, good mechanical and oxidation properties.
Ntebogeng F. Mogale   +1 more
doaj   +1 more source

Kinetic variables based constitutive model for high temperature deformation of Ti-46.5Al–2Nb–2Cr

open access: yesJournal of Materials Research and Technology, 2021
The deformation behavior in the isothermal compression of Ti-46.5Al–2Nb–2Cr (at. %) including flow stress and microstructure evolution at the deformation temperatures ranging from 1373 to 1533 K and strain rates from 0.001 to 1 s−1 were investigated. The
Yuanyu Chen, Miaoquan Li, Lian Li
doaj   +1 more source

Microstructure and cellular transition characteristic of Ti-42Al-3Nb-1Mo-0.1B alloy

open access: yesChina Foundry, 2020
The microstructure and cellular transition characteristics of an intermetallic Ti-42Al-3Nb-1Mo-0.1B (at.%) alloy were investigated. The as-cast microstructure of the alloy is mainly composed of (α2+γ) lamellar structure and (β+γ) mixture structure, which
Hong Feng, Qi-bin Wang, Shu-zhi Zhang
doaj   +1 more source

PREPARATION OF TiAl15Si15 ALLOY BY HIGH PRESSURE SPARK PLASMA SINTERING

open access: yesActa Metallurgica Slovaca, 2018
This work deals with preparation of intermetallic alloy TiAl15Si15 (wt. %) by powder metallurgy using Spark Plasma Sintering method. Ti-Al-Si alloys are known as materials with low density, relatively good mechanical properties in comparison with their ...
Anna Knaislová   +4 more
doaj   +1 more source

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