Results 61 to 70 of about 4,650 (186)
Crystals, 2021 The effect of a two-step heat treatment on the microstructure and high-temperature tensile properties of β-containing Ti-44Al-4Cr (at%) alloys fabricated by electron beam powder bed fusion were examined by focusing on the morphology of α2/γ lamellar ...
Ken Cho +6 more
doaj +1 more source
Method of protecting a surface with a silicon-slurry/aluminide coating [PDF]
, 1982 A low cost coating for protecting metallic base system substrates from high temperatures, high gas velocity oxidation, thermal fatigue and hot corrosion is described. The coating is particularly useful for protecting vanes and blades in aircraft and land
Deadmore, D. L., Young, S. G.
core +1 more source
Advanced Engineering Materials, Volume 27, Issue 7, April 2025.This study investigates the effect of a NiAl coating on additively manufactured (AM) IN939 to improve its cyclic oxidation resistance at 1050 °C. The coating promotes protective α‐Al2O3 formation, allowing durability for up to 240 cycles, while uncoated AM‐IN939 experiences spallation and weight loss due to nonprotective oxides.
Fatih Guler +5 more
wiley +1 more source
Consolidation Efficiency of Noncompact Alloys by Diamond Burnishing
Наука и техника, 2019 Active use of parts synthesized while using additive technologies from powders is limited due to presence of residual porosity contributing to a decrease in strength, ductility, fracture toughness, crack resistance, workability by cutting, as well as ...
E. V. Vishnepolskiy, D. V. Pavlenko
doaj +1 more source
International Journal of Aerospace Engineering, Volume 2025, Issue 1, 2025.Small gas turbine (SGT) engines power the latest generation of unmanned aerial vehicles (UAVs). This study investigates the axial flow–natured rotor blades of an SGT compressor. Rotor structures in axial flow compressors have failed due to complex stress scenarios.
Sandhiya Chandrakumar +10 more
wiley +1 more source
Journal of Engineering, Volume 2025, Issue 1, 2025.The present work focuses on optimizing spatter size, taper angle, and circularity simultaneously during fiber laser trepan drilling of stainless steel thin sheet using Taguchi–grey relational analysis (GRA). The controllable process factors such as trepanning speed, average laser power, and pulse frequency with five levels are applied to conduct the ...
Alemu Workie Kebede +3 more
wiley +1 more source
Microstrain Analysis of Titanium Aluminides [PDF]
Materials Science Forum, 2010 The aeronautic and automotive industries have shown a renewed interest in TiAl based alloys. The main reasons for such an interest are their low density (~3,8g/cm3), a good stiffness and a high strength for temperatures up to 750°C. However, these alloys exhibit, in their polycrystalline form, a poor ductility at room temperature with widely scattered ...
E. Héripré +3 more
openaire +1 more source
Engineering Reports, Volume 6, Issue 12, December 2024.The graphical abstract demonstrates that adding 9 wt% nickel to an Al‐Si matrix composite increases hardness by 25.93%, tensile strength by 40.3%, and density by 6.01%, but decreases impact strength by 50% compared to the A413 alloy. It includes SEM images, a stir casting schematic, and data on tensile and impact behavior.
A. Saiyathibrahim +3 more
wiley +1 more source
Duplex aluminized coatings [PDF]
, 1975 The surface of a metallic base system is initially coated with a metallic alloy layer that is ductile and oxidation resistant. An aluminide coating is then applied to the metallic alloy layer.
Gedwill, M. A., Grisaffe, S. J.
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, 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 +2 more
core +1 more source