Question

How we know the percentage of oxidation composition on oxide layer?

Answer 1

Explanation:

Scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (EDX) used on the cross-sections of the coated sample to determine the scale thickness and elemental composition.

During oxidation of protective coating MCrAlY (Bondcoat) on nickel superalloys formed Al2O3 layer (thermal grown oxide or TGO) with thickness of a few micrometers.

If this layer is thicker than 10 micrometers, or will comprise Cr2O3, it means that the coating has been overheated (> 900 ° C).

please mark as brainliest.

Answer 2

Explanation:

See your answer Brainly buddy.......