Interplay of process, microstructure, and mechanical performance in electron beam-powder bed fusion of Ti48Al2Nb2Cr

P Karimi, MK Keshavarz, E Sadeghi, M Habibnejad… - Additive …, 2023 - Elsevier
To increase the efficiency of the next generation of gas turbines, it is necessary to replace
the heavy Ni-based superalloys with lightweight materials that are resistant to high …

Ancillary Processes for High-Quality Additive Manufacturing: A Review of Microstructure and Mechanical Properties Improvement

B Parvaresh, H Aliyari, R Miresmaeili… - Metals and Materials …, 2023 - Springer
Metal additive manufacturing is a method of producing metallic parts layer-by-layer. Some
drawbacks, including anisotropy in mechanical properties, detrimental residual stresses …

A Review—Additive Manufacturing of Intermetallic Alloys Based on Orthorhombic Titanium Aluminide Ti2AlNb

AG Illarionov, SI Stepanov, IA Naschetnikova… - Materials, 2023 - mdpi.com
Titanium alloys based on orthorhombic titanium aluminide Ti2AlNb are promising refractory
materials for aircraft engine parts in the operating temperature range from 600–700° C. Parts …

Enhancement of surface characteristics of additively manufactured γ-TiAl and IN939 alloys after laser shock processing

M Ozer, O Yılmaz, L Subasi, A Gunaydin… - Optics & Laser …, 2024 - Elsevier
The enhancement in laser technology opened up new methods such as additive
manufacturing (AM) of metals. While AM offers high design flexibility and reduced material …

Laser powder bed fusion of titanium aluminides using sequential thermal scanning strategy

HA Soliman, M Yakout, M Elbestawi - Journal of Manufacturing Processes, 2022 - Elsevier
Abstract Titanium Aluminides (TiAls) are good candidates for many applications in the
automobile, aerospace, and energy industry because of their high strength, toughness …

Multi-objective optimization for forming quality of laser and CMT-P arc hybrid additive manufacturing aluminum alloy using response surface methodology

S He, Z Zhang, H Li, T Zhang, X Lu, J Kang - Actuators, 2024 - mdpi.com
A thin-walled structure of high-strength aluminum alloy 2024 (AA2024) was fabricated using
novel laser and cold metal transfer and pulse (CMT-P) arc hybrid additive manufacturing …

Influence of electron beam powder bed fusion process parameters at constant volumetric energy density on surface topography and microstructural homogeneity of a …

J Moritz, M Teschke, A Marquardt… - Advanced …, 2023 - Wiley Online Library
In powder bed fusion additive manufacturing, the volumetric energy density EV is a
commonly used parameter to quantify process energy input. However, recent results …

Investigation on microstructure characteristics and mechanical properties of twin wire-directed energy deposition-arc fabricated TiAl alloy regulated by the line energy

L Wang, C Shen, Y Zhang, F Li, W Zhou, G Ruan… - Intermetallics, 2024 - Elsevier
The microstructure of TiAl alloy is extremely sensitive to the thermal history. During additive
manufacturing, multiple thermal cycles and partial remelting of the TiAl deposition layers …

[HTML][HTML] Oxidation behavior of Ti2AlC MAX phase-based coating on a γ-TiAl alloy TiAl48-2-2 produced by DC magnetron sputtering

N Laska, R Swadźba, P Nellessen, O Helle… - Surface and Coatings …, 2024 - Elsevier
The application of intermetallic γ-TiAl-based alloys is limited by the deterioration in strength
and creep resistance as well as reduction in oxidation resistance above 750° C. The …

Influence of Combined Heat Treatment and Hot Isostatic Pressure (HT-HIP) on Titanium Aluminide Processed by L-PBF

HA Soliman, J Pineault, M Elbestawi - Materials, 2023 - mdpi.com
Postprocessing is essential for improving titanium aluminide (TiAl) microstructure and part
quality after using the laser powder bed fusion (L-PBF) method. It has been reported that Ti …