Results 21 to 30 of about 762 (184)
Laser-based powder bed fusion thermal history of IN718 parts and metallurgical considerations [PDF]
Advanced ManufacturingLaser-based powder bed fusion (LB-PBF) as-built material properties; residual stresses and final component shape are dependent on the thermal history of the printed part.
Mustafa Megahed +3 more
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Modelling of inertia welding of IN718 superalloy
Materials Science and Technology, 2011 A simple model for the inertia welding of a nickel based superalloy is proposed. The heat flow occurring in the vicinity of the joint is considered, assuming it to be one-dimensional, and this is coupled to a treatment of the stress state expected there using Hill's general method, so that the upset can be estimated.
Yang, L, Gebelin, J, Reed, R
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On the interplay of microstructure and residual stress in LPBF IN718 [PDF]
Journal of Materials Science, 2020 AbstractThe relationship between residual stresses and microstructure associated with a laser powder bed fusion (LPBF) IN718 alloy has been investigated on specimens produced with three different scanning strategies (unidirectional Y-scan, 90° XY-scan, and 67° Rot-scan).
Itziar Serrano-Munoz +9 more
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Study on the microstructures of SLM IN718 based on solidification model
Xibei Gongye Daxue XuebaoDuring the selective laser melting(SLM) process of IN718, different process parameters have a significant impact on its microstructure. To analyze the interrelationship between process parameters and microstructure, in this study, the relationship ...
XU Wei, WAN Jie, CHEN Yuzeng
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Advances in the Solidification of IN718 and RS5 Alloys
Superalloys 718, 625, 706 and Various Derivatives (2001), 2001 One of the main objectives of this work is to analyze and compare the solidification characteristics of IN718 and RS5 alloys. In this regard, a methodological approach for estimation of the solidification parameters of multicomponent alloy systems was developed.
L. Nastac +3 more
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Materials & DesignIn this study, horizontally connected IN718/CuSn10 bimetallic structures with different deposition sequences were fabricated by laser directed energy deposition (LDED).
Jiahua Wang +5 more
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Corrosion Behavior of Refractory High-Entropy Alloys in FLiNaK Molten Salts
Metals, 2023 Refractory high-entropy alloys (RHEAs) have recently attracted widespread attention due to their outstanding mechanical properties at elevated temperatures, making them appealing for concentrating solar power and nuclear energy applications.
Kunjal Patel +3 more
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Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites
Advanced Engineering Materials, EarlyView.Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter +9 more
wiley +1 more source
In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy
Advanced Engineering Materials, EarlyView.A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal +4 more
wiley +1 more source
MetalsIn this study, high-temperature uniaxial tensile tests were performed on IN718 superalloy samples fabricated using Wire Arc Additive Manufacturing (WAAM) and compared to wrought IN718 superalloy samples.
Run-Hua Song +7 more
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