The hardening characteristics of austenite stainless steel and Hadfield manganese steel of low stacking fault energy were investigated. Basing on the similarity of both two stress strain curves on hardening stage, we proposed that the curves were composed of matrix hardening, behavior softening and structure hardening. From that we explained the partial stress strain curve of upward curvature was resuled from the interaction of dominant softening and hardening. The similarity and difference in defomation process of two kinds of materials were discussed and the cause was analyzed.
Key words
stacking fault energy /
matrix hardening /
behavior softening /
structure hardening
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References
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