In:
Lubrication Science, Wiley, Vol. 31, No. 1-2 ( 2019-01), p. 11-20
Abstract:
Dry tribological tests of M50 matrix composites containing 0, 2.5, 5.0, and 7.5 wt% Ag are undertaken at 0.2 m/second 15 N from 25°C to 450°C against Si 3 N 4 ceramic balls. The results indicate that the tribological performance is strongly dependent on the content of solid lubricant Ag. M50 matrix composites containing 5.0 wt% Ag exhibits the great tribological performance with the low friction coefficients of 0.23 to 0.43 and less wear rates of 1.89 to 3.52 × 10 −6 mm 3 N −1 m −1 from 25°C to 450°C, which is attributed to the formation of thick lubricating film on the worn surface. Furthermore, the migration model of solid lubricant Ag in M50 matrix composites is established to predict the thickness of formed lubricating film.
Type of Medium:
Online Resource
ISSN:
0954-0075
,
1557-6833
Language:
English
Publisher:
Wiley
Publication Date:
2019
detail.hit.zdb_id:
2279489-X
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