Electrical Analogy for Cavitation Erosion Test Results

2015 ◽  
Vol 4 (1) ◽  
pp. MPC20150019
Author(s):  
Y. Meged
Keyword(s):  
Cavitation Erosion ◽  
Test Results ◽  
Electrical Analogy ◽  
Erosion Test

scholarly journals Comparison of cavitation erosion test results from venturi and vibratory facilities

Wear ◽  
1982 ◽  
Vol 76 (3) ◽  
pp. 269-292 ◽  
Author(s):  
Jiu-Gen He ◽  
F.G. Hammitt
Keyword(s):  
Cavitation Erosion ◽  
Test Results ◽  
Erosion Test

scholarly journals Comparison of Cavitation Erosion Test Results between Vibratory and Cavitating Jet Methods.

1992 ◽  
Vol 23 (7) ◽  
pp. 830-838 ◽  
Author(s):  
Atsushi YAMAGUCHI ◽  
Toshiharu KAZAMA ◽  
Kosuke INOUE ◽  
Jiro ONOUE
Keyword(s):  
Cavitation Erosion ◽  
Test Results ◽  
Erosion Test ◽  
Cavitating Jet

Comparison of Cavitation Erosion Test Results between Vibratory and Cavitating Jet Methods

2001 ◽  
Vol 2 (1) ◽  
pp. 25-30 ◽  
Author(s):  
Atsushi Yamaguchi ◽  
Toshiharu Kazama ◽  
Kosuke Inoue ◽  
Jiro Onoue
Keyword(s):  
Cavitation Erosion ◽  
Test Results ◽  
Erosion Test ◽  
Cavitating Jet

Analysis of the External Conditions Affecting on the Cavitation Resistance of a Steel

2019 ◽  
Vol 946 ◽  
pp. 31-36
Author(s):  
Hussam L. Alwan ◽  
N. Lezhnin ◽  
Yury Korobov
Keyword(s):  
Surface Resistance ◽  
Cavitation Erosion ◽  
Medium Carbon Steel ◽  
Cavitation Resistance ◽  
Nacl Solution ◽  
Medium Carbon ◽  
Test Conditions ◽  
External Conditions ◽  
Erosion Test ◽  
Testing Liquid

The aim of this study is to analyze the effect of cavitation erosion test conditions on the surface resistance of medium carbon steel. The ultrasonic vibratory specimen system was used to perform the experiments under the laboratory conditions. The vibratory frequency and the displacement amplitude were 20 kHz and 20 μm, respectively. In design of experiments, four various cavitation behaviors have been studied based on four cavitation test conditions corresponding to those behaviors. These conditions can be summarized as follows: (1) the usage of water as a testing liquid; (2) replacement the water with 3.5% NaCl solution; (3) applying a certain voltage to cause a combined electrochemical action working simultaneously with the water; and (4) applying the same voltage by using the 3.5% NaCl solution instead of water. The obtained results showed that the mass loss differs by test modes applied.

The Cavitation Behavior of Fe-Cr-C-Si-Ni Alloys

2006 ◽  
Vol 510-511 ◽  
pp. 274-277
Author(s):  
Ji Hui Kim ◽  
Kwang Su Na ◽  
Seon Jin Kim
Keyword(s):  
Work Hardening ◽  
Cavitation Erosion ◽  
Erosion Resistance ◽  
Hardfacing Alloy ◽  
Ni Alloys ◽  
Ni Addition ◽  
Work Hardening Rate ◽  
Erosion Test ◽  
Cavitation Behavior ◽  
Cavitation Erosion Resistance

The cavitation erosion behavior of Fe-Cr-C-Si-xNi (x = 1, 2 and 3 wt.%) alloys were investigated for 50 hours using a 20 kHz vibratory cavitation erosion test equipment. 1 wt.% Ni added Fe-based hardfacing alloy showed excellent cavitation erosion resistance, comparable to the stellite 6. Above 1 wt.% Ni, however, the erosion resistance deteriorated quickly. It is conjectured that Ni addition above 1 wt.%, which has been shown to increase the stacking fault energy (SFE), resulted in reduction of the work hardening rate during the erosion test. Therefore, the enhanced cavitation erosion resistance of the 1 wt.% Ni alloy over the 2 and 3 wt.% Ni alloys could be explained in terms of the SFE, Ms temperature and work hardening.

A Study of Cavitation Erosion

2002 ◽  
Author(s):  
Hiromu Isaka ◽  
Masatsugu Tsutsumi ◽  
Hiroyuki Kobayashi ◽  
Tadashi Shiraishi
Keyword(s):  
Stainless Steel ◽  
Erosion Rate ◽  
Cavitation Erosion ◽  
Design Criteria ◽  
Hard Material ◽  
Test Results ◽  
Pressurized Water Reactor ◽  
Pressurized Water ◽  
Type Stainless Steel ◽  
Critical Cavitation

The authors performed experimental study for the purpose of the following two items from a viewpoint of cavitation erosion of a cylindrical orifice in view of a problem at the letdown orifice in PWR (Pressurized Water Reactor). 1. To get the critical cavitation parameter of the cylindrical orifice to establish the design criteria for prevention of cavitation erosion, and 2. to ascertain the erosion rate in such an eventuality that the cavitation erosion occurs with the orifice made of stainless steel with precipitation hardening (17-4-Cu hardening type stainless steel), so that we confirm the appropriateness of the design criteria. Regarding the 1st item, we carried out the cavitation tests to get the critical cavitation parameters inside and downstream of the orifice. The test results showed that the cavitation parameter at inception is independent of the length or the diameter of the orifice. Moreover, the design criteria of cavitation erosion of cylindrical orifices have been established. Regarding the 2nd item, we tested the erosion rate under high-pressure conditions. The cavitation erosion actually occurred in the cylindrical orifice at the tests that was strongly resemble to the erosion occurred at the plant. It will be seldom to reproduce resemble cavitation erosion in a cylindrical orifice with the hard material used at plants. We could establish the criteria for preventing the cavitation erosion from the test results.

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