scholarly journals The Effect of Alloy Microstructure on Their Cavitation Erosion Behavior in Seawater

2018 ◽  
Author(s):  
Abdulhameed Al-Hashem ◽  
Abdulmajeed Abdullah ◽  
Wafa Riad
Keyword(s):  
Cavitation Erosion ◽  
Erosion Behavior ◽  
Alloy Microstructure

Cavitation erosion behavior of hydraulic concrete under high-speed flow

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Xin Wang ◽  
Ting-Qiang Xie
Keyword(s):  
Cavitation Bubble ◽  
High Speed ◽  
Cavitation Erosion ◽  
Concrete Strength ◽  
Bubble Collapse ◽  
High Speed Flow ◽  
Content Type ◽  
Erosion Behavior ◽  
Hydraulic Concrete ◽  
Speed Flow

Purpose Cavitation erosion has always been a common technical problem in a hydraulic discharging structure. This paper aims to investigate the cavitation erosion behavior of hydraulic concrete under high-speed flow. Design/methodology/approach A high-speed and high-pressure venturi cavitation erosion generator was used to simulate the strong cavitation. The characteristics of hydrodynamic loads of cavitation bubble collapse zone, the failure characteristics and the erosion development process of concrete were investigated. The main influencing factors of cavitation erosion were discussed. Findings The collapse of the cavitation bubble group produced a high frequency, continuous and unsteady pulse load on the wall of concrete, which was more likely to cause fatigue failure of concrete materials. The cavitation action position and the main frequency of impact load were greatly affected by the downstream pressure. A power exponential relationship between cavitation load, cavitation erosion and flow speed was observed. With the increase of concrete strength, the degree of damage of cavitation erosion was approximately linearly reduced. Originality/value After cavitation erosion, a skeleton structure was formed by the accumulation of granular particles, and the relatively independent bulk structure of the surface differed from the flake structure formed after abrasion.

Formulation of cavitation erosion behavior based on logistic analysis

Wear ◽  
2004 ◽  
Vol 257 (9-10) ◽  
pp. 1064-1070 ◽  
Author(s):  
Shuji Hattori ◽  
Kohei Maeda ◽  
Qingliang Zhang
Keyword(s):  
Cavitation Erosion ◽  
Erosion Behavior ◽  
Logistic Analysis ◽  
Behavior Based

Cavitation erosion behavior of super-hydrophobic coatings on Al5083 marine aluminum alloy

Wear ◽  
2019 ◽  
Vol 424-425 ◽  
pp. 122-132 ◽  
Author(s):  
J. Fahim ◽  
S.M.M. Hadavi ◽  
H. Ghayour ◽  
S.A. Hassanzadeh Tabrizi
Keyword(s):  
Aluminum Alloy ◽  
Cavitation Erosion ◽  
Hydrophobic Coatings ◽  
Erosion Behavior

Effect of flow velocity on cavitation erosion behavior of HVOF sprayed WC-10Ni and WC-20Cr3C2–7Ni coatings

2020 ◽  
Vol 92 ◽  
pp. 105330 ◽  
Author(s):  
Sheng Hong ◽  
Yuping Wu ◽  
Jianhua Wu ◽  
Yuan Zheng ◽  
Yuquan Zhang ◽  
...  
Keyword(s):  
Flow Velocity ◽  
Cavitation Erosion ◽  
Erosion Behavior

Cavitation erosion behavior of WC coatings on CrNiMo stainless steel by laser alloying

2009 ◽  
Vol 16 (2) ◽  
pp. 203-207 ◽  
Author(s):  
Xiao-bin Zhang ◽  
Chang-sheng Liu ◽  
Xiao-dong Liu ◽  
Jiang Dong ◽  
Bo Yu
Keyword(s):  
Stainless Steel ◽  
Cavitation Erosion ◽  
Laser Alloying ◽  
Erosion Behavior
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