Results 41 to 50 of about 25,310 (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 +10 more
wiley +1 more source
Open EngineeringIn maritime applications, journal bearings are an essential part in guaranteeing the effectiveness and performance of machinery. Nonetheless, a variety of environmental elements, including wear and friction, have a substantial impact on the bearings ...
Ghani Suadad Noori +2 more
doaj +1 more source
Friction and wear characteristics of silicon nitride ceramics under dry friction condition
Materials Research Express, 2021 In order to reveal the friction properties and improve the wear resistance of silicon nitride ceramic materials, a calculation model of static friction coefficient of silicon nitride ceramic is established.
Jinmei Yao +7 more
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Determination of Resistance Coefficient and Turbulent Friction Factor in Non-Circular Ducts.
JSME International Journal Series B, 2000 Static pressures in non-circular ducts and pipe fittings (globe, ball and butterfly valves) have been measured in a closed circuit water channel at the range of Reynolds number from 20000 to 80000, which give rise to fully developed turbulent pipe flow, so as to define the friction coefficient (Cf) and resistance coefficients (K).
openaire +3 more sources
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 +8 more
wiley +1 more source
MetalsWe performed a gas nitriding and quenching process (GNQP) on Ti–18 mass% Nb alloy to obtain a high damping capacity and wear resistance. GNQP was performed at temperatures of 1023, 1123, and 1223 K.
Yoshikazu Mantani +3 more
doaj +1 more source
DRY SLIDING OF POLYESTER COMPOSITES FILLED BY NANOPARTICLES AGAINST STEEL [PDF]
Journal of the Egyptian Society of Tribology, 2012 In the present experiments, friction coefficient and wear of polyester composites reinforced by nanoparticles of iron, copper, aluminum, and aluminum oxide and dry sliding against steel were investigated to develop new engineering materials with low ...
S. Magda, W. Y. Ali, M. I. Khashaba
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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 +9 more
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Meikuang Anquan, 2021 In order to accurately calculate the convective heat transfer coefficient between the mine roadway air flow and the roadway wall, according to the heat and moisture exchange principle between the roadway air flow and the roadway wall, and considering ...
GAO Jianan, WU Fengliang
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Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure
Advanced Engineering Materials, EarlyView.Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari +3 more
wiley +1 more source