Avoiding or Promoting Graphite in Carbon-Rich Chromium-Containing CoNiFer Cast Alloys—Part 2: Microstructures of the Elaborated Alloys

Table 2

Measured surface fractions of carbides and graphite and comparison with the volume fractions issued from the mass fractions calculated at 500°C [10]: case of the Ni-based alloys.

calc. vol.% and measured surf. %	Ni-xCr-3C			Ni-yCr-4.5C			Ni-zCr-5C
wt.% Cr	30	25.5	25.5 (meas.)	30	34.5	34.5 (meas.)	30	37	37 (meas.)
Carbides	29.4	25.5	30.2±2.2	33.8	37.5	28.8±1.3	33.4	41.4	32.0±4.4
Graphite	0	0	0	1.42	0	0.23±0.09	3.04	0	0.63±0.09