Study of the Parameters Affecting Erosion Wear of Ductile Material in Solid-Liquid Mixture (original) (raw)

Study the Effect of Impact Angle on Slurry Erosion Wear of Four Different Ductile Materials

Materials Today: Proceedings, 2018

The test rig fabricated for the present work has an ability to study the effect of orientation angle of erosion wear. The particles of Indian Standard sand (Quartz) selected as erodent for the present investigation because it is the most widely occurs in natural slurries. Experimental investigations on erosion behavior of ductile materials AISI SS304, AA 6063, Copper and Brass have been carried out using solid-water mixtures of the above erodent. The erosion wear due to solid-liquid mixture of IS Sand and tap water at different impact angles shows typical ductile erosion behavior for the selected materials. The maximum erosion is observed at 22.5° angle for AISI SS 304, 45 o for AA 6063, 22.5 o for Copper and 30 o for Brass. The minimum erosion is observed at 90 o orientation angle for all the materials. The eroded specimens were examined under the Scanning Electron Microscope (SEM) at minimum and maximum wear orientation angles. The SEM micrographs of eroded specimens depict the mechanism of material removal.

Experimental Investigation of Jet Erosion Wear for Aluminium Alloy 19000 due Solid-liquid Mixture

International Journal for Research in Applied Science and Engineering Technology -IJRASET, 2020

Erosion wear is a serious problem for slurry transportation and slurry handling equipment’s. It plays an important role in design and operational conditions of slurry transportation system. This paper shows the experimental investigation of weight loss in copper material due to solid-liquid (slurry) impact by using different operating conditions and the validation of the readings using regression. For the experimental investigation, Jet Erosion pot tester is fabricated by using propeller for uniform distribution. Special arrangement is made for angular movement of test carrying fixture in which it can move from 10° to 85°. Different experiments are carried on Aluminium material for repeatability. For experimental study, different parameters like solid-liquid (slurry) concentration, particle size, variable angles (from10° to 85°) and time variable are used. These experimental repeatability readings are then validated by using Regression analysis . During this, it is observed that the erosion wear of Aluminium alloy (Ductile material) is maximum at 25°

Erosion wear studies on high concentration fly ash slurries

Wear, 2017

Erosion is an unavoidable phenomenon in the pipelines transporting bulk solids in both hydraulic and pneumatic conveying modes. Erosion wear depends on a number of factors like hardness of the material, size and shape of the solid particles, solid concentration, velocity of particles, impact angle of solids on the target material surface etc. Several investigators have made systematic studies to establish the functional dependence of erosion wear on various parameters. In the case of hydraulic conveying of the solids in slurry form, most of these studies are limited to low and medium solid concentrations only. But with the advent of new economical, environment friendly and water saving technology of solid conveying in the form of high concentration slurries (HCSD) the study of erosion wear at these concentrations becomes necessary. Hence, in the present study a modified pot tester capable of operating at high concentrations (C w 460% by mass) has been designed and fabricated. Measurements have been made with fly ash slurries at various concentrations (in the range 50% to 70% by mass) and relative velocities (in the range 1 to 4 m/s). It is observed that the parametric dependence of erosion wear at high solid concentrations is at variance with that observed at lower concentrations. The erosion wear was found to have a stronger dependence on concentration as compared to relative velocity. Studies are also conducted to investigate the effect of variation of angle of impact on the erosion wear at a solid concentration of 65%(by mass) and it is noticed that erosion rate shows a maximum at an angle of 45°.

Development of Slurry Jet Erosion Tester to Simulate the Erosion Wear due to Solid-Liquid Mixture

A Jet erosion is normally used to study the relative erosion behaviour of different material at moderate solid concentration, velocity, and particle size and impact angle. A slurry pot t is then fabricated by inserting propeller from the bottom of the cylinder and is rotated at the speed required for uniform distribution. The test specimens are then mounted on test fixture which is fixed and has a provision to move in different angular position to find out the wear for different angles. Erosion of materials is occurs due to the impact of high velocity of slurry which is comes out from the nozzle and impacting on the test specimen. Two different experiments are conducted preliminarily first for repeatability test for fix parameters such as 450,particle size 655micron,angle and 10% solid concentration for 60 minutes and another one for authentication. The results were obtained for ductile material and are found in good arrangement with the literature.

Experimental technique to analyse the slurry erosion wear due to turbulence

2009

Erosion due to turbulence is a predominant factor in plant design for slurry handling. DUCOM Instruments (P) Ltd. has built a "counter rotating double disc erosion tester" to analyse surfaces for erosion due to turbulence. Volume loss of Stainless Steel and aluminum as a function of varying time, particle hardness, speed and slurry concentration is evaluated in this erosion tester. Individual study on the effect of corrosion on the total volume loss is conducted and found to be high in alumina slurry and low in silica slurry.

Development of Correlations for Predicting the Slurry Erosion of Ductile Materials

Journal of Tribology, 2011

Material loss due to erosion is a serious problem associated with the flow of solid-liquid mixtures. In the present work, erosion wear tests have been carried out in a slurry pot tester for seven different ductile type materials namely aluminum alloy (AA6063), copper, brass, mild steel, AISI 304L stainless steel, AISI 316L stainless steel, and turbine blade grade steel using three different erodents namely, quartz, alumina, and silicon carbide. Experiments have been performed at different orientation angles of target material at the velocities of 3, 6, and 8.33 m/s for solid concentrations of 10%, 20%, and 30% (by weight) and particle sizes of 363, 550, and 655 μm. The contribution of cutting wear in the total wear of ductile material at various orientation angles has been determined. It is observed that the maximum cutting wear angle for the ductile material depends on its hardness and a correlation is developed for its prediction. Also a methodology is proposed for estimation of t...

Study of the parametric dependence of erosion wear for the parallel flow of solid–liquid mixtures

Tribology International, 1999

The phenomenon of erosion wear due to the cutting action of solid particles in solid-liquid mixture flows has been studied in a slurry pot tester. Special fixtures and design modifications were incorporated in a slurry pot tester in order to ensure that the erosive wear on the wear piece is primarily due to parallel flow of the mixture. Experiments performed at various solid concentrations, particle sizes and velocities, show that the parallel flow wear increases with increase in solid concentration, particle size and velocity. The parametric dependence on velocity is comparatively much stronger as compared to that on either solid concentration or particle size.

Effect of Impacting Particle Kinetic Energy on Slurry Erosion Wear

Journal of Bio- and Tribo-Corrosion, 2015

In the present investigation, the effect of kinetic energy of different materials of the same-sized solid particles is examined on copper as target material using slurry pot tester. Quartz, Silicon carbide and Alumina are the impacting solid particles used for conducting trials. It is understood that the kinetic energy and stress concentration of impacting particles on target surface are responsible for material removal from the target surface, also the effect of erodent property like its shape and density is more dominant at shallow impact angles compared to higher impact angles. However, it is reported in literature that the exponent of velocity varies from 1.87 to 4.00 for ductile materials. Thus, different materials with the same-sized solid particles at constant kinetic energy were used to conduct the experiments. It is observed that for three different materials mass loss for the same mean particle size is nearly constant at 90°orientation angle but variation is found in 30°orientation angle. Further, the SEM micrographs of these solid particles show that alumina have sharp edges and angular nature. Silicon carbide is sub-angular in nature while quartz is blocky in nature. SEM micrographs of eroded surfaces show that at shallow impact angles the material is mainly removed by the platelet mechanism and material is displaced in the direction of flow. Also it is observed that increasing the velocity for quartz particle increases the crater length as compared to other two materials. Erosion wear was found more when alumina are used as the impacting particle due to their angular nature. At normal impact, indentation craters with rim are observed with significance increase in crater size when quartz is used as impacting particles.

Simulate the Erosion Wear of AISI SS 304L due to Solid- Liquid Mixture

A Jet erosion is normally used to study the relative erosion behaviour of different material at moderate solid concentration, velocity, and particle size and impact angle. A slurry pot t is then fabricated by inserting propeller from the bottom of the cylinder and is rotated at the speed required for uniform distribution. The test specimens are then mounted on test fixture which is fixed and has a provision to move in different angular position to find out the wear for different angles. Erosion of materials is occurs due to the impact of high velocity of slurry which is comes out from the nozzle and impacting on the test specimen. Two different experiments are conducted preliminarily first for repeatability test for fix parameters such as angles from 150 to 900 in six intervals of 150 difference,particle size 655micron, and 10% solid concentration for 120 minutes The results were obtained for ductile material and are found in good arrangement with the literature.