The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
High-speed centrifugal water pumps sometimes suffer severe erosion when the cavity generated by the inlet stream collapses. Use of materials with improved fracture toughness and material hardness, such as metal–ceramic composites or ceramic materials, results in a high resistance to cavitation erosion. In the present study, water droplet impingement erosion tests were conducted to evaluate the cavitation-erosion...
Turbine blades in the low-steam environment of energy generation systems suffer severe erosion due to the impingement of water droplets. Erosion resistance of metallic substrates to droplet impingement could possibly be improved with ceramic coating. However, the erosion resistance of ceramic material has not been sufficiently evaluated with respect to selection and maintenance of component materials...
In general, it is accepted that ceramic materials outperform metallic materials at resisting solid-particle erosion. Ceramic materials also have the commercially beneficial quality of a long life span. Nevertheless, few studies have evaluated the effectiveness of the higher erosion resistance of ceramic materials as compared with industrial metallic materials. The impact-angle dependence of erosion...
High temperature oxidation and erosion resistant ceramic coating materials have been recently used for turbine rotor blades under high temperature dry steam conditions. It is, therefore, important to evaluate not only the physical or mechanical properties but also characteristics of erosion and fatigue of such materials for purposes of material selection and to predict the working life of plants....
Component materials in the steam environment of energy generation systems have severe problems of erosion caused by the impingement of water droplets. An evaluation of the resistance of such materials to erosion is very important in the maintenance of power plant systems and to prolong the life span of the components. A water-jet peening system, which is normally used for surface treatment technology,...
A practical, predictive equation for estimating erosion damage caused by solid particle impact, which can be utilized under any impact conditions and for any type of material, is proposed. Impact parameters, which affect erosion mechanisms and damage to materials are the size, shape and properties of particles in addition to the important parameters of impact velocity and angle. The material parameters...
In order to select high erosion resistant materials or to estimate erosion damage caused by solid particle impact in actual cases, it is very important to take the mechanical properties of a material into account. It is well known that material hardness is closely related to erosion damage to materials. Another mechanical property apart from material hardness should be investigated, since the material...
The dependence on the impact angle of erosion damage caused by solid particle impact was characterized on several kinds of material, as expressed by a trigonometric function of both impact angle and material hardness. Erosion tests were conducted on five metallic materials, a ceramic and a plastic material using silica sand particles (mean particle size 325 μm) at impact angles from 3° to 90°, up...
Analyses of plastic strain caused by a dynamic or quasi-static intrusion of a hard steel ball were carried out to compare the plastic strain distributions and to search for triggers of erosion damage to materials around the indentation. Regular square grids with 11.81 line mm -1 were made on the mating surface of a composite block by using a photoengraving method. The two blocks were...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.