Looking for New Polycrystalline MC-Reinforced Cobalt-Based Superalloys Candidate to Applications at 1200°C

Figure 10

Surface states of the “CoCrC=Ta” alloy oxidized in air at 1200°C and cooled at −5°C min⁻¹ (a) and of the “CoCrC=Hf” alloy oxidized and cooled in the same conditions (b).

(a)

(b)