Electropulses induced direct aging and ultrafast precipitation in additive manufactured 15-5 PH stainless steel

Electropulses induced direct aging and ultrafast precipitation in additive manufactured 15-5 PH stainless steel

Blog Article

Periodic electric current pulses, i.e.electropulses, were applied on selective laser melting prepared 15-5 precipitation hardening stainless ALLIMAX PRO 450MG steel for direct aging.Traditional aging treatment typically takes hours to achieve peak hardening and could induce reverted austenite.Herein, electropulsing treatment on as-built sample can dramatically reduce the processing time to 6 min.

Moreover, the nucleation of reverted austenite triggered by the segregation of Ni atoms on the interfaces between Cu-rich precipitates and martensite was not observed.These two unique phenomena were rationalized to the unsynchronized enhancement of diffusivity LCD/LED Display Panels of Cu and Ni atoms under electropulses due to their different electron configurations.