Influence of Hydrostatic Pressure on Void Formation at Hard Particles

[+] Author and Article Information
A. R. Austen

Mechanical Metallurgy Research, Kawecki Berylco Industries, Inc., Reading, Pa.

B. Avitzur

Lehigh University, Bethlehem, Pa.

J. Eng. Ind 96(4), 1192-1196 (Nov 01, 1974) (5 pages) doi:10.1115/1.3438494 History: Received July 10, 1973; Online July 15, 2010


An experimental technique for drawing and fluid extrusion of artificial composites is described. This method is utilized in a quantitative study of suppression of void formation and growth in materials through the application of hydrostatic pressure during deformation. Critical pressures, which are the minimum hydrostatic pressures required to suppress void initiation, are investigated. The experimental critical pressure data are compared with similar analytical data derived from a related upper bound equation.

Copyright © 1974 by ASME
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