Stainless steel samples with 100% austenitic microstructure and alloyed with 0.9 wt-% of nitrogen in solid solution were tested under vibratory cavitation experiments in distilled water to study the cavitation-erosion wear (EC) at grain size level (mesoscale). Fully austenitic samples were obtained by high temperature gas nitriding (HTGN) a commercially available duplex stainless steel, UNS
The influence of grain size on cavitation resistance of materia l and the . Krella A. K.:Influence of cavitation intensity on X6CrNiTi18-10 stainless steel, Wear 258 (2005) Alicja KRELLA Head of Department DSc Ph.D. Institute An influence of cavitation intensity on degradation mechanism of X6CrNiTi18-10 stainless steel has been presented. Investigations have been carried out at various inlet and outlet pressures in a
X6CrNiTi18-10 steel surface by means of cathodic arc evaporation PVD method . Jinjun Lu has investigated the cavitation erosion resistance of one Yb--Sialon ceramic and two Dy--Sialon ceramics in deionized water . Haibin Li showed the cavitation erosion behavior of CP-Ti sample after gas nitriding process as a result of Cavitation Explained and Illustrated - Machinery LubricationThe average size of the particles produced by cavitation decreases as the cavitation intensity increases. Precursors of Cavitation. When investigating a cavitation problem in a fluid system, you must identify all possible sources of low pressure (vacuum), high temperature (heat), and locations where air might be ingressing.
Sep 20, 2008 · Erosion curves of TiN coating deposited on X6CrNiTi18-10 stainless steel and uncoated X6CrNiTi18-10 steel. The highest mass loss took place at the specimens subjected to the highest cavitation intensity of J = 25.85 kW/m 2. The incubation period of the TiN coated specimen was 6 h, and of the uncoated specimen was 2.5 h. Coatings Free Full-Text Experimental Study of the According to Refs [21,27,28], the inlet pressure in the cavitation chamber affects the flow velocity and cavitation intensity. Thus, a decrease in the inlet pressure of 100 kPa was sufficient to decrease the number of pulses and their impact speed to achieve a 22 % improvement in the cavitation erosion resistance of the CrN/CrCN - X6CrNiTi18-10 system.
Jun 10, 2021 · The impact of deposition of multilayer CrN/CrCN coating on X6CrNiTi18-10 steel by means of the PVD (physical vapour deposition) method on resistance to cavitation erosion has been investigated. Cavitation tests were performed using a cavitation chamber with a barricade system at the inlet pressure p 1 = 600 kPa and the outlet pressure p 2 = 123 kPa. Deposition of CrN/CrCN coating CrCN PVD Coating on Austenitic Steel on Resistance to May 19, 2020 · protective properties of the CrN/CrCN coating deposited on X6CrNiTi18-10 steel to cavitation erosion, especially on the incubation period duration and on the erosion rate. Because the inlet pressure a ects. cavitation intensity , the CrN/CrCN coating deposited on austenitic steel was tested at the inlet.
Reported here are the results of an experimental study on the response to low-intensity cavitation induced by low-frequency (4-6 W/cm2, 20 kHz and 32.6 kHz) ultrasound of isolated human arterial samples taken during conventional myocardial revascularization operations. Studies have found that low-frequency ultrasound results in a significant Estimation of cavitation intensity from the time taken for Aug 12, 2006 · In order to estimate the cavitation erosion rate, the time taken for cavitation bubbles to develop and the cavitation erosion intensity were investigated. The cavitation intensity was found to be proportional to the 7th power of the time taken for bubbles to develop. This is a similar dependency to the effect of scaling on cavitation erosion, which shows how the cavitation erosion rate
Cavitation in hydraulic machinery usually causes a change of fluid dynamic characteristics. In order to predict the effect of cavitation on hydrofoil characteristics, the cavitation around a hydrofoil was studied numerically. The full cavitation model and a modified RNG. k turbulence model were used. Influence of Cavitation Intensity on the Relative This work presents investigations of relative cavitation resistance of carbon steel (C45) at the initial stage of erosion, after melting its surface by 6 kW CO2 laser beam. The research work was carried out on the rotating disk facility. Three areas were determined on the surface of investigated sample. Each area was eroded with different intensity.
The important role of nuclei on cavitation inception and cavitation development is now well known. Several recent studies, such as the large one suggested by the 20 th ITTC and conducted in 1992 at the Grand Tunnel Hydrodynamique (GTH) of the Bassin d'Essais des Carènes, have allowed a precise correlation between cavitation inception for different types of cavitation on marine propellers and Influence of the Nuclei on the Cavitation Inception for Mar 01, 1998 · Influence of the Nuclei on the Cavitation Inception for Different Types of Cavitation on Ship Propellers B. Gindroz, B. Gindroz Bassin dEssais des Care`nes, 27400 Val de Reuil, France. Search for other works by this author on:This Site. PubMed. Google Scholar. M. L. Billet.
Aug 28, 2007 · Krella A. (2005). Influence of cavitation intensity on X6crniti18-10 stainless steel performance in the incubation period. Wear 258:17231731 Article Google Scholar 3. Dular M., Bachert B., Stoffel B and Sirok B. (2004). Relationship between cavitation structures and cavitation damage. Wear 257:11761184 Numerical Investigation of Degradation of 316L Steel Jun 01, 2021 · Profile of R a R a roughness parameter of 316L steel exposed to cavitation at:(a) p 1 p 1 = 600 kPa; (b) p 1 p 1 = 700 kPa; (c) p 1 p 1 = 800 kPa; (d) p 1 p 1 = 900 kPa (marked points show the arithmetic mean calculated from the values of experimental data) (Reprinted from Effect of cavitation intensity on degradation of X6CrNiTi18-10 stainless steel by A.K. Krella, A. Krupa, Wear, Volumes
The cavitation erosion tests were performed in a cavitation tunnel with a slot cavitator. Wu C. T.:Influence of single and multilayer TiN films on the axial tension and fatigue performance of AISI 1045 steel. Thin Solid Films 338 (1999) 177÷184. Inluence of cavitation intensity on X6CrNiTi18-10 stainless steel performance in the Prediction method for cavitation erosion based on Abstract The prediction of cavitation erosion rates is important in order to evaluate the approximate life of components in fluid machinery. The measurement of impact loads in bubble collapses helps us to predict the life under cavitation erosion. In this study, we carried out the erosion tests and measured impact loads in bubble collapses with a cavitating liquid jet apparatus which complies
A series of cavitation erosion tests were carried out to investigate the resistance of the TiN coatings to cavitation action. The TiN coatings were deposited at various deposition parameters on austenitic stainless steel, X6CrNiTi18-10, and with various thickness by means of the cathodic arc evaporation method (ARC PVD).Effect of cavitation intensity on degradation of An influence of cavitation intensity on degradation mechanism of X6CrNiTi18-10 stainless steel has been presented. Investigations have been carried out at various inlet and outlet pressures in a chamber with a system of barricades.