Impact of sized abrader and normal load on deformation morphology of EN 24 steel subjected to abrasion

Abstract

There is a relative motion between two components such as in machine elements happening with transfer of force displacement or motions. The features like transferring of load, displacement from one object to other object takes place between the parts. All these cases give rise to discontinuities in velocity and displacements. This type of loading, displacements and dynamic conditions give rise to elastic, inelastic and surface damage of both the objects. These discontinuities results in volume loss of materials. Loss of materials gives rise to loss of durability and reliability of machines. In the present study experiments were conducted using rubber wheel abrader for identifying the influence of abrader grain size and effect of normal load. On three body abrasive wear individual experiments were conducted using sand abrader of grain size 106 microns, 212 microns and 425 microns. EN 24 steel was used as target material. The speed was maintained at 200 rpm. The time of the test was 8 minutes. The abrader flow rate was 100 grams/minute. The weight loss was estimated and observed that 0.002, 0.022 and 0.037 for a normal load 11.37 N, 35.31 N, 58.85 N and abrader size of 106 microns. The weight loss was estimated and observed that 0.001, 0.020 and 0.037 for a normal load 11.37 N, 35.31 N, 58.85 N and abrader size of 212 microns. The weight loss was estimated and observed that 0.02, 0.021 and 0.031 for a normal load 11.37 N, 35.31 N, 58.85 N and abrader size of 425 microns. The wear track of target material and abrader after experiments was studied in scanning electron microscope (SEM) and found that for a given normal load, the abrader size was found not to much influence on wear loss and wear mode was influenced to a longer extent by normal load rather than abrader grain sizes. The hardness of the target material was found to be influential in wear modes.There is a relative motion between two components such as in machine elements happening with transfer of force displacement or motions. The features like transferring of load, displacement from one object to other object takes place between the parts. All these cases give rise to discontinuities in velocity and displacements. This type of loading, displacements and dynamic conditions give rise to elastic, inelastic and surface damage of both the objects. These discontinuities results in volume loss of materials. Loss of materials gives rise to loss of durability and reliability of machines. In the present study experiments were conducted using rubber wheel abrader for identifying the influence of abrader grain size and effect of normal load. On three body abrasive wear individual experiments were conducted using sand abrader of grain size 106 microns, 212 microns and 425 microns. EN 24 steel was used as target material. The speed was maintained at 200 rpm. The time of the test was 8 minutes. The abrader f...