Results 31 to 40 of about 266 (165)
Reduction of Cavitation Erosion by Laser Peening
SNAME Maritime Convention, 2014 Cavitation erosion is a significant problem in naval and maritime systems impacting propellers, rudders, ship hulls, pump impellers and thrusters. The phenomenon occurs, for example in propellers, as liquid flows through regions of low pressure and bubbles form due to the concentration of dissolved gases and the reduced pressure.
Lloyd Hackel +2 more
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Applied Sciences, 2020 In industrial applications, the shafting components with high stress are easily damaged due to cyclic loads if there is no surface treatment. With the use of ultrasonic cavitation peening, the residual compressive stress and the surface hardness of these
Fushi Bai +5 more
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Cavitation Damage Characteristics of Shot Peened ALBC3 Alloy
Journal of Nanoscience and Nanotechnology, 2019 Copper alloys have widely used for marine plants, ship building equipment, and renewable energy facilities under marine environment due to its excellent castability, durability, and corrosion resistance. In this study, the surface of ALBC3 alloy was modified with shot peening time to improve the strength and cavitation characteristics.
Il-Cho, Park +2 more
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Improvement of fatigue strength for aluminum alloy bolts using ultrasonic cavitation peening
Journal of Advanced Mechanical Design, Systems, and ManufacturingUltrasonic cavitation peening is one of surface treatments to improve surface hardness. In the ultrasonic cavitation peening, the surface was treated using shock waves generated when the cavitation bubbles break.
Shinji HASHIMURA, Keita YOKOI
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A Novel Ultrasonic Cavitation Peening Approach Assisted by Water Jet
Applied Sciences, 2018 Ultrasonic cavitation peening is an environmentally friendly technology to improve surface properties. In the traditional ultrasonic cavitation peening process, specimens have to be immersed in a liquid and temperature control is required, which limits ...
Fushi Bai +3 more
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The Journal of Engineering, 2015 In this paper, it has been demonstrated that compressive residual stress induced by cavitation peening which is one of the mechanical surface modification techniques can reduce invasion of the surface of austenitic stainless steel by hydrogen. Cavitation
Osamu Takakuwa, Hitoshi Soyama
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Laser-induced cavitation bubbles and shock waves in water near a concave surface
Ultrasonics Sonochemistry, 2021 The interplay among the cavitation structures and the shock waves following a nanosecond laser breakdown in water in the vicinity of a concave surface was visualized with high-speed shadowgraphy and schlieren cinematography.
Tomaž Požar +2 more
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Improvement of delayed fracture resistance on chrome molybdenum steel bolt by cavitation peening
Nihon Kikai Gakkai ronbunshu, 2016 In order to demonstrate the effect of cavitation peening on crack initiation stage of hydrogen-charged materials with the objective of industrial application, and suppression of the delayed fracture of bolt, the delayed fracture test was conducted under ...
Naoki KUMAGAI +2 more
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Results in Materials, 2023 A new metalworking technique referred to as positron and laser assisted magnetic energy intensive multifunction cavitation (PLMEI-MFC) using a narrow nozzle was developed and applied to SCM440 Cr–Mo steel.
Toshihiko Yoshimura +2 more
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Results in Materials, 2022 This work demonstrates a new processing technology termed magnetic energy intensive multifunction cavitation (MEI-MFC). In this technique, a strong magnetic field is used to concentrate the bubble energy while ultrasonic waves are applied from the ...
Toshihiko Yoshimura +3 more
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