sub critical heat treatment in high chromium white cast iron
sub critical heat treatment in high chromium white cast iron
(OP)
We apply direct secondary heat treatment (from 350 OC to 750 0C) at our material (18% Cr) presumably to have secondary carbide precipitation and martensite formation during cooling. The secondary carbides that we get have high percent of chromium and a lower percent of fe contrary to the primary ones that have high percent of fe and a low percent of cr.
In literature this is widely mentioned but I can't find any references regarding why is that happening. Do you have any suggestions?
Moreover I would be very interested if you have any good etching to propose for secondary carbides?
Thank you
In literature this is widely mentioned but I can't find any references regarding why is that happening. Do you have any suggestions?
Moreover I would be very interested if you have any good etching to propose for secondary carbides?
Thank you





RE: sub critical heat treatment in high chromium white cast iron
htt
htt
For chemical etchants
htt