2. Cavitation erosion

2.1 Mechanism of cavitation erosion

This form of surface damage consists of the formation of microcavities in metal, resulting from the shock wave caused by the implosion of gas bubbles or vapor pockets enclosed in a fluid moving relative to the surfaces [6][34] . Fluids can be :

strongly aerated engine oil;
an equally aerated hydraulic fluid;
high-temperature water or coolant containing vapour pockets.

Bubbles or vapor pockets grow in cavitation zones, i.e. in areas where the fluid pressure is lower than its vapor pressure....

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Cavitation erosion

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Bibliography

References

(1) - SCHILLING (A.) - Automobile Engine Lubrication. - Scientific Publications (G.B.) Ltd. Broseley, Shropshire, England (1972).
(2) - AYEL (J.) - L'usure dans les moteurs. - Colloque I.A.P « Filtration et lubrification »....

General works

Reviews

Wear and Tribology International for the scientific basis of wear;

Ingénieurs de l'Automobile, Revue Technique Automobile, Revue Technique Diesel, and MTZ for industrial applications to combat engine wear.

Booklets and technical documents published by the equipment manufacturers: AE/Federal Mogul, Daros, Goetze, Perfect Circle/Dana and Teves-Thomson/TRW/Federal...