Can stainless steel be hardened?
Between 350 to 450 DEG C after nitriding of austenitic stainless steel card surface strengthening by low pressure plasma glow discharge technology, under the pressure of 100 ~ 150KPa, 60 ~ 100 minutes to get a thickness of 10 to about 30 um high nitrogen austenitic hardness of supersaturated solid solution strengthening layer. The layer structure is analyzed to show that X ray diffraction, electron probe and auger spectrometer, the processing temperature is lower than 450 DEG C, the layer is the single nitrogen supersaturated solid solution layer of austenite, hardness reaches IOOOHV, compared with the original material, the wear resistance increases 2 ~ 3 times.
Between 350 to 450 DEG C for austenitic stainless steel after card rapid carburizing surface strengthening by low pressure plasma glow discharge technology, under the pressure of 100 ~ 150KPa, 60 ~ 100 minutes to get the austenite solid solution strengthening layer over saturated thickness of 10 ~ 30 u m high hardness carbon. By using X ray diffraction and electron probe and the auger spectrometer of the layer structure analysis showed that in the temperature lower than 450 DEG C, the layer is a single-phase carbon supersaturated solid solution layer of austenite, hardness reaches 900HV, compared with the original matrix material, high wear resistance, anti bite performance improved.
