Results 41 to 50 of about 1,367,716 (264)

Non-isothermal oxidation characteristic of titanium-aluminium intermetallic alloys

open access: yesCailiao gongcheng
The non-isothermal oxidation behaviors of TiAl and Ti3Al alloys at 1450-1570 ℃ in a pure oxygen atmosphere were studied by using TGA/DSC simultaneous thermal analysis, SEM and EPMA characterizations and theoretical calculation.
OUYANG Peixuan   +4 more
doaj   +1 more source

Interactions between TiAl Alloy and Different Oxide Moulds under High-temperature and Long-time Condition

open access: yesHigh Temperature Materials and Processes, 2013
Interactions between Ti-47Al-2Cr-2Nb (at.%) alloy and alumina, zirconia and yttria moulds were studied under high-temperature and long-time condition, and the reaction mechanisms were explored.
Cui Yongshuang   +4 more
doaj   +1 more source

Micro/Nanosilver Contribution in Modifying the Lubrication Film to Improve Friction and Wear Behaviors of TiAl-10 wt.%Ag Composite

open access: yesAdvances in Materials Science and Engineering, 2022
Tribological performances of solid films are studied to improve their application range while retaining the longevity and high accuracy of TiAl alloy. For a ball-on-flat tribopair system, addition of micro/nanosilver improved the tribological behaviors ...
Kang Yang, Na Xiao
doaj   +1 more source

Preferential site occupancy of alloying elements in TiAl-based phases [PDF]

open access: yes, 2015
First principles calculations are used to study the preferential occupation of ternary alloying additions into the binary Ti-Al phases, namely $\gamma$-TiAl, $\alpha_2$-Ti$_3$Al, $\beta_{\mathrm{o}}$-TiAl, and B19-TiAl. While the early transition metals (TMs, group IVB, VB , and VIB elements) prefer to substitute for Ti atoms in the $\gamma ...
arxiv   +1 more source

Additive manufacturing of TiAl-based alloys [PDF]

open access: yesManufacturing Review, 2020
The ever-increasing demand for developing lightweight, high-temperature materials that can operate at elevated temperatures is still a subject of worldwide research and TiAl-based alloys have come to the fore. The conventional methods of manufacturing have been used successfully to manufacture the TiAl-based alloy.
openaire   +2 more sources

Interaction between γ-TiAl alloy and zirconia [PDF]

open access: yesChina Foundry, 2008
: A study on the interaction between TiAl alloy and zirconia was carried out in argon atmosphere. The micrographic observations of the cross-section perpendicular to the interface were obtained using a scanning electron microscope with a dedicated energy
Liu Aihui, Li Bangsheng, Nan Hai
doaj  

Mechanical Behaviour of an Al2O3 Dispersion Strengthened γTiAl Alloy Produced by Centrifugal Casting

open access: yesMetals, 2020
γ-TiAl has been a hot topic of research for more than a few decades now, since it is a potential candidate for high temperature structural applications.
Daniela Pilone   +6 more
doaj   +1 more source

Tuning the microstructure and mechanical properties of TiAl-based alloy through grain boundary engineering

open access: yesJournal of Materials Research and Technology, 2022
In order to modify the room-temperature plasticity of TiAl-based alloy, grain boundary character distribution (GBCD) in TiAl-based alloy was tuned through multidirectional isothermal forging (MDIF) combined with annealing. The experimental results showed
Yaodong Xuanyuan   +4 more
doaj  

A novel method to fabricate TiAl intermetallic alloy 3D parts using additive manufacturing

open access: yesDefence Technology, 2017
The present work explores the feasibility of fabricating porous 3D parts in TiAl intermetallic alloy directly from Ti–6Al–4V and Al powders. This approach uses a binder jetting additive manufacturing process followed by reactive sintering.
J.J.S. Dilip   +4 more
doaj   +1 more source

High Nb–TiAl Intermetallic Blades Fabricated by Isothermal Die Forging Process at Low Temperature

open access: yesMetals, 2020
In this study, the isothermal die forging process of high Nb–TiAl (Ti-44Al-8Nb-0.2W-0.2B-Y, at.%) alloy blades was simulated using the ABAQUS V6.11 software and the blades were fabricated successfully.
Xiaopeng Wang   +5 more
doaj   +1 more source

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