Results 211 to 220 of about 539,943 (266)

Influence of 13 wt% TiO2 content in alumina-titania powders on microstructure, sliding wear and cavitation erosion resistance of APS sprayed coatings

, 2021
This paper discusses the influence of using 13 wt% of TiO2 addition to Al2O3 powder and selection of plasma spray parameters on morphology, microstructure, phase composition, mechanical properties, and, particularly, tribological behaviour and cavitation
L. Łatka, M. Michalak, M. Szala, M. Walczak, P. Sokołowski, A. Ambroziak   +5 more
semanticscholar   +1 more source

Hydroturbine Cavitation Erosion

Journal of Energy Engineering, 1992
This paper is based on an analysis of turbine cavitation data obtained from 729 turbines installed in the United States since 1950 and 19 selected Canadian turbines. An equation has been developed to express the anticipated rate of cavitation within 75% and 95% confidence limits.
openaire   +1 more source

Effects of WC on the cavitation erosion resistance of FeCoCrNiB0.2 high entropy alloy coating prepared by laser cladding

, 2021
To improving the cavitation erosion resistance (Re) of the FeCoCrNiB0.2 high entropy alloy (HEA), the FeCoCrNiB0.2 + WC (0 wt.%, 20 wt.%) HEA coatings were synthesized with premixed high-purity on Q235 steel by laser cladding (LC).
Y. Bao, L. Guo, C. Zhong, Q. Song, K. Yang, Yongfeng Jiang, Zirui Wang   +6 more
semanticscholar   +1 more source

Cavitation erosion of aluminas

Ceramics International, 1999
Abstract Various aluminas were eroded in distilled water at 18°C using an ultrasonic facility operating at 20 kHz and with a peak-to-peak amplitude of 50 μm. The progress of erosion was measured by weight loss and the eroded surface was examined using a scanning electron microscope.
W.J Tomlinson, N Kalitsounakis, G Vekinis   +2 more
openaire   +1 more source

Cavitation Erosion in Hydroturbines

Journal of Hydraulic Engineering, 1989
This paper is based on a field survey of the operational and design characteristics of 729 hydroturbines installed since 1950 having either a capacity in excess of 20 MW or a discharge diameter greater than 3 m. This data base includes 67% of the total U.S. hydropower capacity (40,000 MW).
Roger E. A. Arndt, Richard L. Voigt, James P. Sinclair, Peter Rodrique, Antonio Ferreira   +4 more
openaire   +1 more source

Polyurethane coating with heterogeneity structure induced by microphase separation: A new combination of antifouling and cavitation erosion resistance

, 2021
Cavitation erosion and biofouling are the most severe factors of metal materials fatigue failure and degradation in seawater. Herein, a series of hydrophobic fluorinated polyurethane coatings (SFPU-x) with various contents of fluorinated isocyanate ...
Haocheng Yang, Milin Zhang, Rongrong Chen, Qi Liu, Jingyuan Liu, J. Yu, Hongsen Zhang, Peili Liu, Cunguo Lin, Jun Wang   +9 more
semanticscholar   +1 more source

Investigation on sediment erosion in bucket region of Pelton turbine considering cavitation

The Physics of Fluids
In the context of constructing high-head hydro-power stations, the Pelton turbine assumes a critical role as the primary energy converter. This study employs the Eulerian–Lagrangian method to simulate the multi-phase flow occurring within the Pelton ...
L. Han, Chuanliang Guo, Yifang Yuan, Deyou Li, Yongxin Liu, A. Iranzo, D. Qin   +6 more
semanticscholar   +1 more source

Cavitation erosion of monolayer PVD coatings – An influence of deposition technique on the degradation process

, 2021
TiN, Cr–N, W, WC and WC/a-C: H coatings produced using Physical Vapour Deposition (PVD) method were investigated. TiN and Cr–N coatings were deposited using the cathodic arc evaporation (CAE-PVD) and reactive magnetron sputtering (RMS-PVD) techniques. W,
A. Krella
semanticscholar   +1 more source

Accelerated Cavitation Erosion and Sand Erosion

1962
This paper presents comparative scales for the selection of metals based on the ASME cavitation erosion test and the Stauffer sand erosion test, in which hard chromium electroplated on cast steel has been designated with a relative weight loss of 1 in both scales.
W. C. Leith, W. S. McIlquham
openaire   +1 more source

Effects of cavitation and erosion on submersible drainage pumps: A numerical study

The Physics of Fluids
Submersible drainage pumps are used around the world both residentially and industrially for draining water and sewage. However, these pumps are prone to wear and clogging when the flows inward contain particles and air bubbles, and the combined effects ...
Md. Rakibuzzaman, Hyoung-Ho Kim, Sang-Ho Suh, Md. Didarul Islam, Ling Zhou   +4 more
semanticscholar   +1 more source