Investigation of a self-lubricating coating for diesel engine pistons, as produced by combined microarc oxidation and electrophoresis
Year: 2017
Type: article
Abstract: The purpose of this work was to improve reliability and durability of high-silicon aluminum alloy piston skirts for diesel engines . Novel ceramic matrix composites were fabricated on ZL109 aluminum alloy substrates by two steps combining microarc oxidation (MAO) with electrophoresis deposition (EPD). MoS 2 is incorporated into an aluminum oxide matrix during processing. The effects of the ceramic matrix composites on anti-wear and self-lubricating were investigated using a reciprocating test method and cylinder liner samples (boron copper cast iron) as the sliding partner. Compared to the high-silicon aluminum alloys substrate, the friction coefficient of ceramic matrix composites against the liner material was reduced by 35% under dry sliding, the wear loss was decreased by 95%, the worn surfaces were flat and smooth, and friction coefficient was relatively stable. The mechanisms by which the observed advantages were produced are discussed.
Source: Wear
Authors: Chunsheng Ma, Dong Cheng, Xinhe Zhu, Zhijun Yan, Jingguo Fu, Jing Yu, Zeze Liu, Guangyu Yu, Shibin Zheng
Institution: Dalian Maritime University
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $5,394
Awards: G2499822279, G7990859366
OpenAlex ID: W2765190890