Abstract
The technique of inert gas powder production and direct forging of powder in steel cans was applied to a cold worked austenitic stainless steel. The effect of cold work and carbon content on mechanical properties of consolidated powder material and wrought material of the same chemical composition was investigated. It was found that the two processing routes lead to comparable values of ultimate tensile strength, although ductilities are slightly lower for the powder materials. The strength of the higher carbon steel increases faster with cold work than in the low carbon steel, whereas the ductility of the low carbon material decreases more slowly with cold work than in the high carbon steel. The results are explained by different amounts of dislocation substructure strengthening and carbide strengthening in the two materials.
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