Study on the Phase Equilibria of the Fe-Al-Ni-O System at 750°C

Table 3

Constitution of the corundum and matrix phases coexisting in the Fe-Al-Ni-O system at 750°C.

No.	Substrate				Oxides
	Al	Fe	Ni	Matrix phases	O	Al	Fe	Ni	Oxide phases
A1	10.8	86.9	2.3	α	58.4	36.5	1.4	3.7	Corundum
A2	10.7	85.2	4.1	α	59.9	36.2	1.5	2.4	Corundum
	37.8	41.0	21.2	β
A3	8.9	85.2	5.9	α	60.6	35.8	1.7	1.9	Corundum
	32.3	30.2	37.5	β
	8.6	76.1	15.3	γ
A4	31.3	30.8	37.9	β	56.7	36.9	2.3	4.1	Corundum
	8.4	66.4	25.2	γ
A5	7.6	54.9	37.5	γ	57.9	36.4	2.2	3.5	Corundum
A6	5.7	49.5	44.8	γ	59.5	37.1	0.3	3.1	Corundum
A7	4.1	35.1	60.8	γ	56.2	37.0	1.4	5.4	Corundum
A8	3.7	17.4	78.9	γ	61.2	35.0	0.3	3.5	Corundum