The Effect of Hydrostatic Pressure on the Plastic Flow and Fracture of Metals

A description is given of an apparatus for carrying out tension tests under hydrostatic pressures of 60 ton/in 2 or more. The results of an investigation of the effect of hydrostatic pressure on the tensile properties of a number of metals are given. It was found necessary to protect cast materials with a rubber sleeve. The fracture strain increased with hydrostatic pressure, but this increase was not linear but varied with the crystal structure...