Results 51 to 60 of about 23,351 (263)

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang   +10 more
wiley   +1 more source

Microstructure, phase composition, and oxidation resistance of alloys of Nb-Ti-Al system produced by electron beam melting and zone melting

open access: yesResults in Materials
Titanium aluminides and alloys based on them are promising heat-resistant materials. These alloys are promising for using in equipment working under severe conditions, in particular in aircraft construction, mechanical engineering and space technology ...
Iryna Trosnikova   +4 more
doaj   +1 more source

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

open access: yesAdvanced 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

Influence of defects on axial fatigue strength of maraging steel specimens produced by additive manufacturing

open access: yesMATEC Web of Conferences, 2018
Nowadays many materials such as steels, aluminium and titanium alloys can be realised by powder bed solutions melting subsequently powder layers by means of a laser or electron beam (Laser Beam Melting – LBM and Electron Beam Melting – EBM).
Rigon Daniele   +5 more
doaj   +1 more source

Data Mining for Mesoscopic Simulation of Electron Beam Selective Melting

open access: yesEngineering, 2019
In the electron beam selective melting (EBSM) process, the quality of each deposited melt track has an effect on the properties of the manufactured component.
Ya Qian, Wentao Yan, Feng Lin
doaj   +1 more source

Recent Developments in 3D Printing of Rare-Earth-Free Permanent Magnets

open access: yesInventions, 2022
This article reviews the advances in additive manufacturing of magnetic ceramics and alloys without rare-earth elements. Near-net-shaped permanent magnets with varying shapes and dimensions overcome traditional limitations of the cast, sintered, and ...
Chitnarong Sirisathitkul   +1 more
doaj   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

open access: yesAdvanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee   +7 more
wiley   +1 more source

Effect of Electron Beam Method on Processing of Titanium Technogenic Material

open access: yesMetals, 2019
This study reveals the efficiency of the electron beam processing of titanium technogenic material with a high level of impurities and the quality of the obtained metal in correlation to process parameters which are discussed.
Katia Vutova   +4 more
doaj   +1 more source

Numerical Alloy Development for Additive Manufacturing towards Reduced Cracking Susceptibility

open access: yesCrystals, 2021
In this work, we investigated the viability of established hot cracking models for numerically based development of crack-resistant nickel-base superalloys with a high γ′ volume fraction for additive manufacturing.
Benjamin Wahlmann   +3 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

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