Results 131 to 140 of about 3,158 (251)

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, Tae‐Hyeok Kang, Pyuck‐Pa Choi, Subin Lee, Christoph Kirchlechner   +4 more
wiley   +1 more source

Optimization of biaxial tensile specimen shape from numerical investigations

, 2008
International audienceIn innovative industrial processes such as hydroforming or incremental forming, strain rates up to 500s-1 can be reached. As a result, experimental setups allowing to obtain large deformations from static to intermediate strain rate
Ragneau, Eric, Leotoing, Lionel, Zhang, Cunsheng, Zidane, Ibrahim, Guines, Dominique   +4 more
core   +1 more source

Optimization of sampling protocol, specimen types, and sampling sites in periprosthetic joint infections: a retrospective study

Journal of Orthopaedic Surgery and Research
Background Intraoperative culture is critical for diagnosing periprosthetic joint infection (PJI) and antibiotic guidance, yet its value is limited by high culture-negative rates.
Chenghan Chu, Xiaoyu Wu, Zilong Wang, Wengang Zhu, Yang Xing, Ziji Zhang, Weishen Chen, Puyi Sheng   +7 more
doaj   +1 more source

Controlled ageing-induced nano Gd precipitation: An effective strategy to improve mechanical, corrosion, antibacterial and biocompatibility of Mg-0.5Mn-7.3Gd alloy

Journal of Magnesium and Alloys
Magnesium alloys have long been recognized as promising degradable biomaterials, however, bacterial infection, poor mechanical and corrosion properties limit its clinical application.
Satyabrata Nigamananda Sahoo, Pritish Rath, Samit Kumar Nandi, Mangal Roy   +3 more
doaj   +1 more source

Application of gradient based algorithms for robust shape optimization of a tensile test specimen

, 2008
In case of technical applications such as automotive or aeronautic part optimization, uncertainties in design variables and other parameters have to be taken into account.
Abel, Bengt, Schumacher, Axel, Bartsch, Marion   +2 more
core  

Optimization of a Tapered Specimen Geometry for Short-Term Dynamic Tensile Testing of Continuous Fiber Reinforced Thermoplastics

Continuous fiber reinforced thermoplastics (cFRTP) are one of the most promising lightweight materials. For their use in structural components, reproducible and comparable material values have to be evaluated, especially at high strain rates.
Sebastian Schmeer, Florian Mischo
core   +1 more source

Optimization curve.

, 2014
For optimization of W elution buffer low, three samples were used: 1) UC, umbilical cord sample; 2) Plasma sample form a normal subject; and 3) rhEPO, epoetin beta (300 ng/l).
Kristian Lisbjerg (647626), Niels Vidiendal Olsen (399984), Carsten Lundby (52760), Peter Oturai (647627), Niels Jacob Aachmann-Andersen (647624), Anne-Kristine Meinild-Lundby (647628), Søren Just Christensen (647625), Niels-Henrik Holstein-Rathlou (326169)   +7 more
core   +1 more source

Nondestructive Testing of Welded Composite Metal Foams

Advanced Engineering Materials, EarlyView.
X‐ray computed tomography (CT) is used to evaluate welded steel–steel composite metal foam (CMF) joints of two density classes. It reports variation in postweld spatial void distribution and correlates it to weld‐induced changes, mechanical performance, and failure within welded CMF panels.
Chinmaya Prerana Inguva, Aman Kaushik, Afsaneh Rabiei   +2 more
wiley   +1 more source

Analysis of surface discharge characteristics of resin-impregnated paper insulation in HVDC bushings under multiple influencing factors

Zhejiang dianli
Breakdown discharges and surface flashover caused by internal and external factors in high-voltage direct-current （HVDC） bushings have posed a serious threat to the safe and stable operation of ultra-high-voltage DC transmission projects.
DENG Jun, PAN Zhicheng, ZHOU Haibin, ZHU Guangya   +3 more
doaj   +1 more source

Influence of Surface Finish on the Tribological Performance of AlTiBN Coatings Deposited on Forming Tools

Advanced Engineering Materials, EarlyView.
Aluminum and nitride coatings are used in industry because they are hard, resist wear, and protect against oxidation. Adding boron can improve friction behavior and other properties. This study tests coatings on surfaces with different finishes. Results show smoother surfaces perform better, while rough ones wear faster, although coatings can reduce ...
Adrián Claver, Iker Alfonso, Eneko Barba, Javier León, José Antonio García, Iñaki Zalakain, Iván Fernández Martínez, Arley García‐Carrero, Christian Almeyda, Daniel Salcedo   +9 more
wiley   +1 more source