Assessment of Corrosion and Mechanical Properties of Copper Components of Diesel Engines in Waste Oil Biodiesel Environment

Autor: Samuel, Olusegun David, Amosun, Semiu T., Dwivedi, Gaurav, Idi, Stanley Ufuoma, Owamah, Hilary I., Nwaokocha, Collins N., Jeyaseelan, Thangaraja, Enweremadu, Christopher C
Zdroj: Key Engineering Materials; August 2022, Vol. 928 Issue: 1 p3-16, 14p
Abstrakt: Copper is used in diesel engine injectors and bearings, among other places. The corrosion and mechanical characteristics of these components when they are exposed to biodiesel are still lacking acceptable information. Nonetheless, there is a dearth of data on the corrosion and mechanical qualities of these components when exposed to alternative fuels such as biodiesel. In this study, waste-oil-derived biodiesel (WBB100) was blended with diesel fuel (WBB0) in the following proportions: B100:B0–10, 20, and 40 (WBB10, WBB20, and WBB40). ASTM standards were used to determine the blends' characteristics. Copper corrosion was investigated in a biodiesel environment using a stationary immersion method. Corrosion and surface morphology differences between the corroded and unexposed copper coupons were evaluated. After 960 hours of exposure, it was discovered that copper exposed to B0 (0.147 mpy) corroded less than copper exposed to B100 (0.4601 mpy). WBB10, WBB20, WBB40, and WBB100 had Brinell hardness values of 204.319, 221.666, 245.711, 267.021, and 293.303 N/mm2, respectively, while their tensile strengths were 694.69, 753.64, 835.42, and 907.87 MPa. As a result, it can be determined that the WBB10 blend is a better substitute for WBB0 in terms of biodiesel properties and corrosion features.
Databáze: Supplemental Index