Third Body Behavior During Dry Sliding of Cold-Sprayed Al-Al 2 O 3 Composites: In Situ Tribometry and Microanalysis
作者: J. Michael ShockleyS. DescartesE. IrissouJ.-G. LegouxR. R. Chromik
作者单位: 1Department of Mining and Materials Engineering, McGill University
2Université de Lyon, CNRS, INSA-Lyon, LaMCoS, UMR5259
3National Research Council Canada
刊名: Tribology Letters, 2014, Vol.54 (2), pp.191-206
来源数据库: Springer Nature Journal
DOI: 10.1007/s11249-014-0326-z
关键词: Cold sprayAluminum matrix compositeThird bodiesIn situ tribometryTribological circuit
英文摘要: Abstract(#br) Reciprocating sliding wear experiments were conducted on cold-sprayed pure aluminum and Al–22.6 wt% Al 2 O 3 coatings using a custom-built in situ tribometer. Using a transparent sapphire counterface for the wear tests, the dynamic behavior of third body material in the contact was optically observed. The presence of Al 2 O 3 particles led to greater stability of the transfer films adhering to the sapphire counterface, as well as greater stability of the friction coefficient and lower wear rates. Ex situ microanalysis of material in the wear tracks and transfer films suggests that the presence of Al 2 O 3 particles promoted strain localization during sliding. This produced more uniform third body microstructures and protected the underlying aluminum matrix from deformation,...
全文获取路径: Springer Nature  (合作)
影响因子:1.743 (2012)