Tungsten-Nickel-Carbon (W-Ni-C) Phase Diagram
A vertical section (isopleth) of the tungsten-nickel-carbon (W-Ni-C) phase diagram (see Figure 1) is often used to show what happens if cobalt in the tungsten-cobalt-carbon (W-Co-C) ternary system (the basis for cobalt-bonded WC tools) is completely substituted by nickel.
Nickel moves the favorable FCC + WC region towards lower carbon contents (without decreasing its width) and increases the solid-liquid temperatures.
Figure 1. Vertical section (isopleth) of the tungsten-nickel-carbon (W-Ni-C) ternary system, calculated with Thermo-Calc coupled with SSOL4 thermodynamic database. The nickel content is kept constant at 10 wt. %.
A stoichiometric mixture of WC + 10 wt. % Ni corresponds to approximately 5.52 wt. C; the value which is placed inside the undesirable FCC + graphite + WC field.
For additional information please see the vertical sections (isopleths) of tungsten-cobalt-carbon and tungsten-iron-carbon ternary systems.
• Vertical section (isopleth) of tungsten-nickel-carbon ternary system
To cover the costs of running this site, we accept consulting assignments to perform customer tailored Thermo-Calc and DICTRA calculations. If we cannot solve your problem, we will help you find at least one organization which has the right human and computational resources to address your specific needs.
We offer a money back guaranty for our consulting services if you are not satisfied. Drop us a line; our e-mail address is: email@example.com.