Results 1 to 10 of about 4,892 (218)

DIAMOND BURNISHING OF PARTS MADE OF NON-COMPACT BASED ALLOYS TITANIUM ALUMINIDE

Авіаційно-космічна техніка та технологія, 2020
Parameter research results of the residual porosity of the surface layer of samples of the alloy Ti - 45Al-3Nb - Y2O3 (OX45 - 3ODS) based on titanium aluminides obtained by selective laser sintering from the effect on the parameters of the residual ...
Євген Валерійович Вишнепольський, Дмитро Вікторович Павленко   +1 more
doaj   +1 more source

Heat Treatment of In Situ Laser-Fabricated Titanium Aluminide

Metals, 2018
Direct energy deposition (DED) via laser processing, operated under standard conditions with a localised shielding gas, is a potential method for the manufacture of the γ-TiAl alloy.
Shaik E. Hoosain, Sisa Pityana, Christopher S. Freemantle, Monnamme Tlotleng   +3 more
doaj   +1 more source

Electron Beam Powder Bed Fusion of γ-Titanium Aluminide: Effect of Processing Parameters on Part Density, Surface Characteristics, and Aluminum Content

Metals, 2021
Gamma titanium aluminides are very interesting for their use in high-performance applications such as aircraft engines due to their low density, high stiffness and favorable high-temperature properties.
Juliane Moritz, Mirko Teschke, Axel Marquardt, Lukas Stepien, Elena López, Frank Brückner, Marina Macias Barrientos, Frank Walther, Christoph Leyens   +8 more
doaj   +1 more source

Ballistic limit velocity of tungsten alloy spherical fragment penetrating Ti/AlTi-laminated composite target plates

Advanced Composites Letters, 2020
To determine the ballistic limit velocity of titanium–titanium tri-aluminide (Ti/Al 3 Ti)-laminated composites under the action of tungsten alloy spherical fragments, a type of 12.7 mm ballistic gun loading system was used to test the tungsten alloy ...
Yingbin Liu, Chufan Yin, Xiaoyan Hu, Meini Yuan   +3 more
doaj   +1 more source

Impact of the Power-Dependent Beam Diameter during Electron Beam Additive Manufacturing: A Case Study with γ-TiAl

Applied Sciences, 2022
The development of process parameters for electron beam powder bed fusion (PBF-EB) is usually made with simple geometries and uniform scan lengths. The transfer to complex parts with various scan lengths can be achieved by adapting beam parameters such ...
Marcel Reith, Christoph Breuning, Martin Franke, Carolin Körner   +3 more
doaj   +1 more source

Mechanical Alloying Synthesis and Spark Plasma Sintering Consolidation of Al-Ti-Si-W Alloys [PDF]

Archives of Metallurgy and Materials
Al-Ti-Si-W quaternary powders were mechanically synthesized by planetary ball milling; and further consolidated by spark plasma sintering. The nominal compositions of the quaternary alloys were designed to be Al60Ti30Si5W5 and Al45Ti40Si10W5 (wt.%).
Bum-Soon Park, Jae-Cheol Park, Hyun-Kuk Park, Jeong-Han Lee   +3 more
doaj   +1 more source

Reclamation of intermetallic titanium aluminide aero-engine components using directed energy deposition technology

Manufacturing Review, 2022
Titanium Aluminide (TiAl) alloys are intermetallics that offer low density, high melting point, good oxidation and corrosion resistance compared to Ni-based superalloys. As a result, these alloys are used in aero-engine parts such as turbine blades, fuel
Mallikarjuna Balichakra, Reutzel Edward W.   +1 more
doaj   +1 more source

Parametric optimization in micro-EDM drilling of Ti–46.5Al–5Nb–2Mo–0.3B alloy using teaching-learning-based optimization algorithm [PDF]

Frontiers in Engineering and Built Environment
PurposeThe present study is aimed at enhancing the machining performance of titanium aluminide alloy (Ti–46.5Al–5Nb–2Mo–0.3B), known for its poor machinability but critical use in aerospace and automotive sectors. The objective is to identify the optimal
Pranav Ravindrannair, K. Kishore, P. Laxminarayana, Sanjeev Kumar, Azhar Equbal   +4 more
doaj   +1 more source

Impact of microstructure, temperature and strain ratio on energy-based low- cycle fatigue life prediction models for TiAl alloys

, 2012
In this paper, two fatigue lifetime prediction models are tested on TiAl intermetallic using results from uniaxial low-cycle fatigue tests. Both assessments are based on dissipated energy but one of them considers a hydrostatic pressure correction.
Gloanec, Anne-Lise, Henaff, Gilbert, Milani, Thomas   +2 more
core   +1 more source

Pore formation mechanism and intermetallic phase transformation in Ti–Al alloy during reactive sintering

Journal of Materials Research and Technology, 2023
The mechanism of pore formation associated with intermetallic reaction is studied in sintered Ti50Al50 alloy with two different heating rates i.e. 1 °C/min and 10 °C/min. The heating rate significantly influences the pore parameters and the intermetallic
Saif Haider Kayani, Min Cui, Rana Tariq Mehmood Ahmed, Young-Hee Cho, Jung-Moo Lee, Nho-Kwang Park, Hafiz Muhammad Salman Ajmal, Kwangjun Euh   +7 more
doaj   +1 more source