Experimental Investigation on Life Cycle Analysis of the Moly (Mo) Coated Piston Ring in C. I. Engine

摘要

To increase service life of Internal Combustion engine component and improve efficiency of engine various surface treatment methods are used on cylinder piston group (CPG) components. The piston ring is the very critical component and for the improvement coating is done by the thermal spraying methods. Among thermal spraying methods, plasma spraying is most easily commonly applicable method in the automotive industries because it has a high spray rate and deposition, the process consumes fuel gases which are inexpensive and easily obtainable, the process requires minimum preheating and cooling during spraying, the technical reliability of plasma systems is well established in industrial applications, and spraying conditions can be easily controlled upon various applications. In particular, molybdenum coatings fabricated by atmospheric plasma spraying have enhanced resistance to wear and heat, and thus this coating technology was commercialized for application to the automotive industry. The wear resistance of plasma sprayed molybdenum coatings applicable to piston rings was investigated in this study. The performance parameters of the C I engine (as per IS 10000: Part 8) and wear condition (Endurance Test) of the piston and cylinder assembly (as per IS 10000 Part 5) has been done with and without using moly coated piston rings.