Results 11 to 20 of about 53,232 (292)

High-reliability repair of single-crystal Ni-base superalloy by selective electron beam melting

open access: yesMaterials & Design, 2022
Here, we report the utilisation of a powder-bed-fusion additive manufacturing to achieve the CMSX-4 single-crystal repair with René N5 powders. The single-crystal repair is characterised by a fine columnar dendritic substructure, limited in-grain ...
S. Tao, R. Gao, H. Peng, H. Guo, B. Chen
doaj   +1 more source

Numerical Study of Epitaxial Growth after Partial Remelting during Selective Electron Beam Melting in the Context of Ni–Al

open access: yesMetals, 2021
In the selective electron beam melting approach an electron beam is used to partially melt the material powder. Based on the local high energy input, the solidification conditions and likewise the microstructures strongly deviate from conventional ...
Helge Schaar   +2 more
doaj   +1 more source

A Review on the Processing of Aero-Turbine Blade Using 3D Print Techniques

open access: yesJournal of Manufacturing and Materials Processing, 2022
Additive manufacturing (AM) has proven to be the preferred process over traditional processes in a wide range of industries. This review article focused on the progressive development of aero-turbine blades from conventional manufacturing processes to ...
Ayush Sinha   +6 more
doaj   +1 more source

Technology development and roadmap of electron beam additive manufacturing for aviation equipments

open access: yesJournal of Aeronautical Materials, 2023
Additive manufacturing technology has a broad development prospect in the field of aviation equipments. As an important metal additive manufacturing process, the electron beam additive manufacturing is in a rapid development stage. The wire-feed electron
ZHANG Guodong   +4 more
doaj   +1 more source

A review of critical repeatability and reproducibility issues in powder bed fusion

open access: yesMaterials & Design, 2020
Due to the many advantages associated with metal additive manufacturing (AM) processes, research into these technologies has grown significantly over the last number of years.
L. Dowling   +3 more
doaj   +1 more source

Transmission Electron Microscopy of a CMSX-4 Ni-Base Superalloy Produced by Selective Electron Beam Melting

open access: yesMetals, 2016
In this work, the microstructures of superalloy specimens produced using selective electron beam melting additive manufacturing were characterized. The materials were produced using a CMSX-4 powder.
Alireza B. Parsa   +5 more
doaj   +1 more source

Build Size and Orientation Influence on Mechanical Properties of Powder Bed Fusion Deposited Titanium Parts

open access: yesMetals, 2020
This paper explores the influence of sample thickness and build orientation on the microstructure and mechanical properties of electron beam melting (EBM) additive manufactured Ti-6Al-4V titanium alloy and compared to previously published work on SLM ...
Kateřina Mertová   +6 more
doaj   +1 more source

Additive manufacturing of Ti6Al4V alloy: A review

open access: yesMaterials & Design, 2019
In this paper, the recent progress on Ti6Al4V fabricated by three mostly developed additive manufacturing (AM) techniques-directed energy deposition (DED), selective laser melting (SLM) and electron beam melting (EBM)-is thoroughly investigated and ...
Shunyu Liu, Yung C. Shin
doaj   +1 more source

A defect-resistant Co–Ni superalloy for 3D printing

open access: yesNature Communications, 2020
Additive manufacturing promises a major transformation of the production of high economic value metallic materials. Here, the authors describe a new class of 3D printable superalloys that are amenable to crack-free 3D printing via electron beam melting ...
Sean P. Murray   +11 more
doaj   +1 more source

Atomic-scale grain boundary engineering to overcome hot-cracking in additively-manufactured superalloys [PDF]

open access: yes, 2019
There are still debates regarding the mechanisms that lead to hot cracking in parts build by additive manufacturing (AM) of non-weldable Ni-based superalloys.
Abed, Stéphane   +11 more
core   +2 more sources

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