Chemical and mechanical analysis of tribofilms formed from fully formulated oils part 2 - films on Al-Si alloy (A383)

TitleChemical and mechanical analysis of tribofilms formed from fully formulated oils part 2 - films on Al-Si alloy (A383)
Publication TypeJournal Article
Year of Publication2007
AuthorsPereira, G, Lachenwitzer, A, Li, YR, Kasrai, M, Bancroft, GM, Norton, PR, Abrecht, M, Gilbert, PUPA, Regier, T, Hu, YF, Zuin, L
JournalTribol.-Mater., Surf. & Interfaces
Volume1
Pagination105-112
ISBN Number1751-5831
Accession Number2008:455634
Keywordsantiwear film aluminum alloy indentration modulus stiffness surface structure, chem. and mech. anal. of tribofilms formed from fully formulated oils on Al-Si alloy (A383)), Films (lubricating, antiwear, Lubricating oil additives (antiwear, Microstructure, Stiffness, Surface structure, Tribology, XANES spectra (chem. and mech. anal. of tribofilms formed from fully formulated oils on Al-Si alloy (A383))
Abstract

The interactions of a com. available fully formulated oil on an Al-Si alloy have been studied, and a chem. and mech. characterization of the resulting surface films has been undertaken to compare with the results found on 52100 steel. ZnS and Ca phosphate are the primary species found. No Mo species were found in the film, but B was detected; the latter observation contrasts with the results found for 52100 steel. A surprisingly consistent indentation modulus was found for the films formed on A383, considering the complex microstructure of the alloy, which has been shown previously to influence the mech. response of the film produced from zinc dialkyl dithiophosphates (ZDDPs) in oil. The stiffness of the films on A383 is statistically indistinguishable from that found on 52100 steel, and the topog. of the film also looks unchanged compared to the steel study. [on SciFinder(R)]