International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 06 | Jun 2023
p-ISSN: 2395-0072
www.irjet.net
Experimental Investigation On Tin Based Babbitt Composite Material Gawate Atul Vitthal1, Amol N. Patil2, Kharad B.N.3 1Sholar,Dept of Mechanical Engg, Vishwabharti Academy’s College of Engineering, Ahmednagar, Maharashtra,
India
2Asst. Prof. Dept of Mechanical Engg, Dr. D.Y.Patil School of Engineering, Pune, Maharashtra, India
3Asst. Prof. Dept of Mechanical Engg, Vishwabharti Academy’s College of Engineering, Ahmednagar, Maharashtra,
India ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - B83 Babbit is a widely used material in Russian
surfaces, resulting in changes in shape, weight loss, and the generation of debris.
engineering for manufacturing journal bearings through casting, hard facing, and metallization processes. This alloy is known for its low friction coefficient and desirable properties such as rapid conformability, good thermal conductivity, high impact viscosity, and compatibility with oil. However, the low fatigue strength under alternating loads and moderate wear resistance of Babbitt can reduce the operational lifespan of the bearing. To address these limitations, ceramic particles are incorporated into the matrix alloy to enhance the load-bearing capacity and wear resistance of composite materials. In this research, the stir casting method is employed to fabricate a Babbitt metal matrix composite by reinforcing it with silicon carbide at varying concentrations of 2%, 4%, and 6%.
2. SUMMARY OF LITERATURE SURVEY The incorporation of nanoparticles in metal matrix composites can enhance the wear resistance, damping properties, and mechanical strength of the base material. Babbitt bearings exhibit excellent conformability, meaning they can adapt to small misalignments or shaft deflections. The properties of metal matrix composite materials are influenced by various processing parameters in the stir casting process, such as stirring temperature, stirring speed, stirring time, preheating time, as well as the selection of matrix and reinforcements.
1. INTRODUCTION
3. PROBLEM STATEMENT
The B83 Babbit alloy, a popular material in Russian engineering, is commonly used for manufacturing sleeve bearings through casting, hard facing, and metallization processes. This alloy offers several advantageous properties, including a low friction coefficient, rapid conformability, good thermal conductivity, high impact viscosity, and compatibility with both petroleum and synthetic oils. However, the fatigue strength under alternating loads is relatively low, and the wear resistance of Babbit is moderate, resulting in reduced operational lifespan for components made from this material. Currently, Babbit alloys, specifically Sn-Sb-Cu alloys, are extensively employed in various industries, including the sugar industry, shipbuilding, and automotive industry, as the material for sliding bearings that operate in oil.
The bearing used in boiler feed pumps operates under highspeed conditions. However, when subjected to excessively heavy loads and high rotational velocities of the shaft, the bearing is prone to damage, especially if an adequate oil film thickness is not present between the shaft and the bearing. • Excessive wear leading to bearing failure is a significant cause of failures in boiler feed pumps. In industries like the sugar industry, pump failure can disrupt subsequent operations and result in substantial financial losses. • This issue can be addressed by reinforcing metal matrix composites with silicon carbide particles, which can enhance the base material's wear resistance, damping properties, and mechanical strength.
1.1. Introduction to Wear Wear is the gradual loss or removal of material from one or both surfaces in contact due to relative motion between them. It is a significant factor that significantly reduces the effective lifespan of machines and their components. Wear occurs when two surfaces experience relative motion. It involves the progressive removal of material from one surface in relation to the other. The process of wear is complex and involves the gradual deterioration of the
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