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Abstract

To minimize the frictional losses and wear of piston rings in an automotive engine, thick low friction TiGECN nanocomposite coatings have been developed. The substrates were AISI 304 stainless steel coupons and piston rings with bore diameters of 137 mm and 86 mm. The elemental composition and microstructure of the coatings were optimized by varying the Ge to achieve a combination of good mechanical properties and wear rate. The optimized TiGECN coatings exhibited a typical nanocomposite structure performance of the coated piston rings was evaluated using pin on disk tests in SAE 10W-30 diesel engine oil. Finally, the coated rings were evaluated in a single cylinder petrol engine using SAE 5W-20 engine oil and SAE 10W-30 engine oil. In addition, the cylinder liner, which was not coated, showed an average 40% lower wear than that in the uncoated baseline engine test.

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How to Cite
V. Chandramohan, & M. Nandha kumar. (2019). Efficiency of low friction (TI-GE-CN) nano composite thin film coating for piston ring . International Journal of Intellectual Advancements and Research in Engineering Computations, 7(2), 2836–2841. Retrieved from https://ijiarec.com/ijiarec/article/view/1053