Published April 1987
by Astm Intl .
Written in English
|Contributions||E. I. Schmidt (Editor)|
|The Physical Object|
|Number of Pages||273|
Slurry Erosion Behavior of Thermal Spray Coatings: /ch Slurry erosion is a degrading phenomenon usually observed in machineries dealing with particle-laden fluid such as hydro power plants, ship propellers, pumpAuthor: Harpreet Singh Grewal, Harpreet Singh. Erosion resistance of the modified surface of the steel specimens was estimated through slurry erosion test for 1 h at two slurry velocities, 10 and 12 m/s, and three impingement angles, 30°, Design and Performance of Slurry Erosion Tester A slurry whirling arm erosion test ring was constructed and a series of erosion tests and post-erosion analysis were carried out using a paint. Slurry erosion is a severe problem and a major concern for slurry handling equipment, as it leads to considerable expense caused by failures, downtime and material replacement costs. Slurry erosion is dependent on several parameters such as slurry properties, service conditions, and material properties. Hence, much high-quality.
Book: Slurry Transport (Miedema) of motion deals with the start of movement of particles and may be considered a lower limit for the occurrence of erosion or sediment transport. This is important for the stationary bed regime in slurry transport in order to determine at which line speed erosion will start. Under operational conditions in. 1. Introduction. Slurry erosion study is vitally important in many engineering applications associated with the transportations of abrasive particles, particularly in oil and gas production systems, hydraulic machines, pumps, hydropower, mine industry, etc.,,,.Failures due to erosion can lead to detrimental economic consequences as well as safety concerns. The SAR Number for Slurry Abrasion Resistance—J. E. MILLER Discussion TEST METHODS A New Flow-Through Slurry Erosion Wear Test—B. W. MADSEN AND R. BLICKENSDERFER Discussion Test Approach for Dense Slurry Erosion—M. C. ROCO, P. NAIR, AND G. R. ADDIE Experience with the Wet Sand/Rubber Wheel Abrasion Test—. Table The 8 possible flow regimes. 1: Fixed bed without suspension or sheet flow, constant C vs.. Under laboratory circumstances with a constant spatial volumetric concentration C vs, at low line speeds all the particles are in a stationary (fixed) bed at the bottom of the the bed the liquid is flowing through a smaller cross-section A 1 =A p-A 2.
A rectangular sample under evaluation is made to rotate in a slurry cup. The sample is weighed before and after the test to determine loss of mass due to slurry erosion. Volume loss is computed for comparison, due to difference in densities of materials. Index of erosion is . The slurry erosion tests were performed at flow velocity of m s- 1, angles of attack of 15°, 30°, 60° and 90°, and at room temperature. The jet impingement consisted of a pump, nozzle and sample holder. The distance from specimen surface to nozzle end was 25 mm, the inner diameter of exit was 6 mm and the water flow sucked the silica. About the Contributors Author. a teaches (or has taught) courses on soil mechanics and soil cutting, pumps and slurry transport, hopper sedimentation and erosion, mechatronics, applied thermodynamics related to energy, drive system design principles, mooring systems, hydromechanics and mathematics. He is (or has been) also teaching at Hohai University, Changzhou, China, at. After long-term operation, the material loss due to slurry erosion often leads to significant changes in the impeller geometry. This change can, in turn, affect the flow characteristics and the erosion mechanism in a centrifugal pump. To investigate this matter, we consider two geometric models based on a prototype stainless steel impeller, which failed due to huge erosion problems from the.