Results 71 to 80 of about 346,026 (340)

Influence of Cooling Rate on Primary Silicon Size in Hypereutectic Al–Si Alloy Fabricated by Laser Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Al–Si alloys are particularly in demand for automotive and electronic applications, thanks to their excellent wear and thermal properties. Nevertheless, when processed by conventional methods with low cooling rates, the coarse primary Si phases are responsible for increasing brittleness and inducing crack propagation.
Layla Shams Tisha   +3 more
wiley   +1 more source

Priming reasoning increases intentions to wear a face covering to slow down COVID-19 transmission [PDF]

open access: yesarXiv, 2020
Finding mechanisms to promote the use of face masks is fundamental during the second phase of the COVID-19 pandemic response, when shelter-in-place rules are relaxed and some segments of the population are allowed to circulate more freely. Here we report three pre-registered studies (total N = 1,920), using an heterogenous sample of people living in ...
arxiv  

Wear resistance of steels under mechanical wear [PDF]

open access: yesMetaloznavstvo ta obrobka metalìv, 2020
The potential possibilities of high-carbon low-alloy steels as a wear-resistant material under conditions of abrasive and other types of mechanical wear are considered. It is shown that the carbon content in steel at 1.2% mass. and up to 3% of alloying elements in total (mainly Mn, Cr), after quenching from the single-phase γ-region, allow obtaining up
openaire   +2 more sources

Current Trends and Future Perspective for Cold Spray Metal‐Ceramic Composites

open access: yesAdvanced Engineering Materials, EarlyView.
The use of cold spray (CS) technology for creating cermet deposits, combining ceramic and metallic components, is advancing rapidly. Cermets offer excellent temperature handling and erosion resistance for diverse applications. This review outlines the current state of the art, focusing on the deposition dynamics and strategies to optimize the ...
Romario A. Wicaksono   +2 more
wiley   +1 more source

基于滴油润滑的摩托车传动链磨损特性的研究

open access: yesJixie chuandong, 2009
The road tests of transmission chain for motor cycle with periodic lubrication showed that the main wear mechanism was abrasive wear, accompanied with fatigue wear;That under abrasive wear mechanism , both morphology of wear surface and wear resistance ...
郑蕾虹, 王怀宇
doaj  

Impact of Surface Roughness on the Yield Drop of Hot‐Rolled AZX311 Mg Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
Rough‐surfaced AZX311 Mg alloy samples have significantly lower yield strength than polished ones due to stress concentrators forming at V‐notch irregularities. Surface profilometry confirms higher Ra values for rough samples. Highest hardness values were observed near scratched surfaces, indicating strain localization effects near the rough surface ...
Hafiz Muhammad Rehan Tariq   +4 more
wiley   +1 more source

Microstructure and wear resistance of in-situ TiC reinforced Stellite 6 coating using PTA cladding

open access: yesJournal of Materials Research and Technology, 2023
To enhance the durability of copper tuyeres in blast furnaces, it is necessary to apply coatings on their surfaces to protect against wear caused by high-temperature coke.
Ruidong Wang   +8 more
doaj  

Effect of Self-Lubricating Carbon Materials on the Tribological Performance of Ultra-High-Molecular-Weight Polyethylene [PDF]

open access: yesarXiv, 2020
Ultra-high-molecular-weight polyethylene (UHMWPE) has been the gold standard for total knee replacements. Due to the knee's natural movements, UHMWPE wear debris production is inevitable. The debris, at the micron and submicron level, results in the joint's mechanical instability, reduced mobility, increased pain, and implant loosening.
arxiv  

Comparative Wear and Friction Analysis of Sliding Surface Materials for Hydrostatic Bearing under Oil Supply Failure Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
Hydrostatic bearings excel in high‐precision applications, but their performance hinges on a continuous external supply. This study evaluates various material combinations for sliding surfaces to mitigate damage during supply failures or misalignment and to discover the most effective materials identified for enhancing the reliability and efficiency of
Michal Michalec   +6 more
wiley   +1 more source

Layered Structure and Wear Mechanism of Concentrated Polymer Brushes. [PDF]

open access: yesLangmuir, 2023
Okubo H, Kagiwata D, Nakano K, Tsujii Y.
europepmc   +1 more source

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