Results 71 to 80 of about 112,558 (261)

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced 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, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source

Flexural phonon instability defines intrinsic van der Waals elastic limits in the interlayer direction

Nature Communications
Frenkel’s cohesive model predicts an ideal elastic strain limit of ~10% for strong solids, a bound upheld in conventional materials. We demonstrate that such consistency breaks down in van der Waals (vdW) solids, challenging established strength theories.
Heyi Wang, Miaojie Liu, Jiayi Li, Shizhe Feng, Yuan Hou, Man Kit Cheng, Ke Cao, Fanling Meng, Juzheng Chen, Zhiping Xu, Yang Lu   +10 more
doaj   +1 more source

The intrinsic instability of the hydrolase domain of lipoprotein lipase facilitates its inactivation by ANGPTL4-catalyzed unfolding. [PDF]

Proc Natl Acad Sci U S A, 2021
Leth-Espensen KZ, Kristensen KK, Kumari A, Winther AL, Young SG, Jørgensen TJD, Ploug M.   +6 more
europepmc   +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

In vitro PK/PD modeling and simulation to accurately assess the antimicrobial activity of tigecycline against Mycobacterium abscessus

Antimicrobial Agents and Chemotherapy
Conventional in vitro susceptibility testing methods may underestimate the bactericidal activity of antibiotics that are chemically unstable in aqueous media, thereby limiting their clinical translatability.
Hyunseo Park, Sara E. Maloney Norcross, Anthony J. Hickey, Mercedes Gonzalez-Juarrero, Bernd Meibohm   +4 more
doaj   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

Advanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

How to Perform a Complete Arthroscopic Assessment of the Scapholunate Joint Complex

Arthroscopy Techniques
Scapholunate instability can result in debilitating pain, dysfunction, and secondary arthritis. Diagnosis is primarily based on a combination of clinical and radiological parameters.
Chul Ki Goorens, M.D., Kjell Van Royen, M.D, Thierry Scheerlinck, Ph.D., Joris Duerinckx, Ph.D., Christophe Mathoulin, Ph.D.   +4 more
doaj   +1 more source

Plastic instability in uni-axially anisotropic (r value) materials

Nihon Kikai Gakkai ronbunshu, 2016
In the framework of mechanics of plasticity plastic instability has been taken up as the onset of ductile fracture. Hill established a sufficient criterion for uniqueness of boundary-value problem set by given velocities on a part of surface of a body ...
Hitoshi MORITOKI
doaj   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source