Electropulsing-induced steels strengthening at high temperature
نویسنده
چکیده
Electropulsing usually reduces the stability of metastable phases in materials. This work reports the opposite effect, where electropulsing drives the stable -phase at high temperature to be decomposed. This enables both γ-phase and σ-phase in duplex stainless steel to survive and hence to strengthen the steel at high temperature. The hardness of the quenched sample after electropulsing is 49.4% higher than that without electropulsing treatment. The scientific understanding to the observation has been developed.
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