Optimization of Dispersion-Strengthened Material Based on Copper Powder for Valve Guides of Internal Combustion Engines

Abstract:

The given study is dedicated to optimization of dispersion-strengthened material based on copper powder of the Cu-Al-C-O system used for valve guides of internal combustion engines. The developed material containing 3 % wt aluminum, 0.6 % wt carbon and not more than 0.02 % wt oxygen has the recrystallization temperature of 1000^оС and exhibits higher tribotechnical properties comparing to the prototype. In particular, the wear out intensity of the developed material is 2.5 times lower. The material production technology is based on the method of reactionary mechanical alloying in the attritor and powder and granular metallurgy technologies.

• Periodical: Key Engineering Materials (Volume 910)
• Pages: 730-735
• DOI: https://doi.org/10.4028/p-2u642y
• Online since: February 2022
• Authors: Julia O. Vladimirova*, Evgeny P. Shalunov, Sergey Shalunov
• Keywords: Copper Powder, Dispersion-Strengthened Material, Ductility, Friction, Reactionary Mechanical Alloying, Valve Guides, Wear Out Intensity

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