Studies on Wear Loss and Deformation Morphology in Three Body Abrasion
Hemaraju1, Ranganatha S2, Shashidhara K. N3

1Prof. Hemaraju, Department of Mechanical Engineering, Bangalore Institute of Technology, Bangalore (Karnataka), India.
2Dr. Ranganaths S, Professor, Department of Mechanical Engineering, University Visweswarya College of Engineering, Bangalore (Karnataka), India.
3Dr. Shashidhara K.N, Professor & Head, Department of Mechanical Engineering, Cambridge Institute of Technology Bangalore (Karnataka), India.
Manuscript received on 10 March 2016 | Revised Manuscript received on 20 March 2016 | Manuscript Published on 30 March 2016 | PP: 15-21 | Volume-5 Issue-10, March 2016 | Retrieval Number: J22740351016/16©BEIESP
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Abstract: Machineries which are used in industries involves relative motion between two components called elements. These relative motion between elements is required either to transfer force or motions. In some cases, example material conveying system, relative motions exists between material and conveyor. All the above cases give rise to discontinuities in velocity and displacements. These discontinuities results in volume loss of materials. Loss of materials give rise to loss of durability and reliability of machines. There will be a lot of thrust in reducing the new advanced machines due to loss of materials or wear. Understanding wear and controlling is a strong need for advanced and reliable design of machines. In the present investigation a basic systematic study has been carried out to understand the impact of material and its metallurgical phases on wear behavior. Rubber wheel abrader with different sized sand as abrader is used for conducting the experiments. CA 40 Steel (269 BHN), Alloy cast iron (450 BHN) Ni Hard cast iron (500 BHN) were used as target materials. Experiments were conducted with two loads 53.2 N and 102.4 N. The speed was maintained at 200 rpm. The time of test was 6 minutes, the flow rate was 100 grams/min. The wear loss was estimated and found that for CA 40 Steel was 0.15 at a normal load of 52.3 N and 0.21 at a load of 102.4 N. The wear loss was for ally cast iron is 0.07 and 0.08 which are comparable at two different normal loads. In case of Ni hard cast iron the wear loss was found to be 0.04 at a normal load of 53.2 N and 0.07 at a normal load of 102.4 N. the effect of normal load was found to be less for materials of higher hardness. The morphology of deformation was found to characterize the experimentally observed wear loss volume for material of different hardness.
Keywords: Abrasive Wear, Deformation, Hardness.

Scope of the Article: Mechanical Maintenance