NiS Glass

Name: NiS
Diagram No.: 736
Type of diagram: TTT
Chemical composition in weight %: NiS
Alloy group: Galsses
Note: TTT diagram of NiS at the different rate of rising temperature. Figure shows the TTT diagram from the alpha to beta transformations of the NiS in the glass. The stable area of the beta-phase differs due to the different rate of rising temperature in the heat-soak treatment. The temperature of nucleation and crystal growth of the beta NiS at a low rate of increasing temperature is lower than that at a high rate of temperature increase. The stable area of the temperature of the beta NiS is wider under the lower rate of temperature increase. The stable area (temperature and time) of the beta phase of the NiS is wide; therefore, we can perform heat treatment of the NiS at a lower temperature (from 200C to 250C) at a low rate of temperature increase (less than 10C/min).
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