Results 41 to 50 of about 8,555 (215)

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

Additive manufacturing technologies in the oral implant clinic: A review of current applications and progress

Frontiers in Bioengineering and Biotechnology, 2023
Additive manufacturing (AM) technologies can enable the direct fabrication of customized physical objects with complex shapes, based on computer-aided design models.
Shitou Huang, Hongbo Wei, Dehua Li
doaj   +1 more source

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source

Research progress of K438 prepared by electron beam additive manufacturing

Fenmo yejin jishu
K438 nickel-based superalloys have the excellent heat-corrosion resistance and high-temperature oxidation resistance, which are widely used in the hot components of aero-engine turbine blades under the working condition of 900 ℃.
CUI Zhaowen, JIAO Shikun, JIANG Tao, QIAN Yuanhong, ZHU Yanliang   +4 more
doaj   +1 more source

Powder bed fusion of pure copper using an electron beam – achieving high conductivity by real-time process monitoring and control [PDF]

MATEC Web of Conferences
Powder bed fusion of metals using an electron beam (PBF-EB/M) has reached market maturity. While most parts manufactured with PBF-EB/M are titanium-based, the rising interest in highly conductive pure copper is attracting attention from both industry and
Ortmann Robert, Hankel Jonas, Grimm Tobias, Röttger Arne, Sehrt Jan T.   +4 more
doaj   +1 more source

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, Andreas Bezold, Johan Westraadt, Katharina Fiegl, Subham Chattoraj, Benjamin Wahlmann, Carolin Körner, Michael Mills, Mathias Göken, Steffen Neumeier   +9 more
wiley   +1 more source

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

Nature 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, Kira M. Pusch, Andrew T. Polonsky, Chris J. Torbet, Gareth G. E. Seward, Ning Zhou, Stéphane A. J. Forsik, Peeyush Nandwana, Michael M. Kirka, Ryan R. Dehoff, William E. Slye, Tresa M. Pollock   +11 more
doaj   +1 more source

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

Advanced 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, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

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

Advanced 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, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Intermetallic Fe–Ti alloy obtained by dual-wire electron-beam additive manufacturing

Next Materials
Fe–Ti intermetallic alloys are among the most perspective materials for hydrogen storage. Like many intermetallics, they are brittle and their quality, including hydrogen accumulation capacity, depends significantly on the composition and production ...
Elena G. Astafurova, Lidiya V. Danilova, Aleksey S. Nifontov, Andrey V. Luchin, Sergey V. Astafurov, Evgeniy A. Kolubaev   +5 more
doaj   +1 more source