La Houille Blanche
Number 7-8, Novembre 1988
|Page(s)||541 - 550|
|Published online||01 October 2009|
Aspects microscopiques de l'endommagement par érosion de cavitation de métaux et alliages utilisables en construction navale
Microscopic aspects of damage caused by cavitation erosion of metals and alloys able to be used for shipbuilding
Service technique des constructions et armes navales, Paris
A study relating to the cavitation erosion phenomenon has been carried out with the help of an eddy vein, on c2 grade pure copper, CuZn 20 brass, two grades of monophased cupro-aluminium, CuAl 2 and CuAl 6, as well as on austenitic stainless steel, grade Z2 CND 17-12.
During the first stage known as the incubation period, damage occurred by deformation of the target. This deformation is directly connected with the intrinsic properties of the material (structure, stacking defect energy).
The second stage is the actual erosion stage which leads to a loss of cohesion as well as the fragmentation.
© Société Hydrotechnique de France, 1988