Results 21 to 30 of about 401 (186)

Additive manufacturing of fine-grain fully lamellar titanium aluminide alloys

open access: yesMaterials & Design, 2023
Additive manufacturing (AM), or 3D printing, has attracted increased attention in producing metallic parts with complex geometries, but it has proved difficult to prepare equiaxed fine-grain parts because the high thermal gradient in solidification ...
Yichao Zhu   +5 more
doaj   +1 more source

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

open access: yesChina 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   +1 more source

The effect of notch size on fatigue crack threshold and propagation in cast gamma titanium aluminide [PDF]

open access: yesMATEC Web of Conferences, 2020
Cracks were initiated and grown from notched specimens with notch lengths of 0.03 (FIB), 0.06, 0.1 and 0.5 mm (diamond blade), in cast gamma titanium aluminide at 400 oC.
Trant Claire   +5 more
doaj   +1 more source

A Review of Milling of Gamma Titanium Aluminides

open access: yesU.Porto Journal of Engineering, 2017
Intermetallic titanium aluminide alloys are used in the high technology engineering field with the goal of achieving weight reduction in different components, exposed to corrosive environments and high temperatures in aeronautical and automotive ...
S. Castellanos, J. Lino Alves
doaj   +1 more source

Advancements and Prospects in Electro-Sinter-Forging

open access: yesMetals, 2022
A summary of the recent advancements, future prospects and open issues in the materials, methods and machines for the technology known as electro-sinter-forging is presented here.
Alessandro Fais
doaj   +1 more source

EFFECT OF ALLOYING ELEMENTS ON PROPERTIES OF PM Ti-Al-Si ALLOYS

open access: yesActa Metallurgica Slovaca, 2013
This work was devoted to the description of the effect of alloying by transition metals (Cr, Cu, Fe) on the structure and properties of TiAl15Si15 alloy.
Pavel Novák   +3 more
doaj   +1 more source

A Novel Approach for Real-Time Quality Monitoring in Machining of Aerospace Alloy through Acoustic Emission Signal Transformation for DNN

open access: yesJournal of Manufacturing and Materials Processing, 2022
Gamma titanium aluminide (γ-TiAl) is considered a high-performance, low-density replacement for nickel-based superalloys in the aerospace industry due to its high specific strength, which is retained at temperatures above 800 °C.
David Adeniji   +2 more
doaj   +1 more source

Effects of Nitriding Subsequent Titanaliting of Steels

open access: yesThe Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2020
The paper presents the results of nitriding in partially dissociated ammonia of the pure technical iron, respectively 34CrAlMo5 steel after titanaliting in powdery solid medium, with direct reference on the growth kinetics of the layers, the phase ...
Andrei Mihai GHINEA   +2 more
doaj   +1 more source

Processing of Intermetallic Titanium Aluminide Wires

open access: yesMetals, 2013
This study shows the possibility of processing titanium aluminide wires by cold deformation and annealing. An accumulative swaging and bundling technique is used to co-deform Ti and Al.
Uta Kühn   +12 more
doaj   +1 more source

Insights on Niobium Micro-Alloyed Laser In Situ Synthesised Gamma Titanium Aluminide Alloys

open access: yesApplied Sciences, 2023
The effects of micro-alloying gamma titanium aluminide (γ-TiAl) with niobium (Nb) using a laser melt pool as a melting pot are reported. The Optomec LENS machine was used to carry out the laser in situ alloying experiments where Nb, ranging from 6 to 10 (
Monnamme Tlotleng   +2 more
doaj   +1 more source

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