Arc Thermal Spray NiCr20 Alloy Coating: Fabrication, Sealant, Heat Treatment, Wear, and Corrosion Resistances

Table 6

Porosity values of sealed and unsealed coatings.

Samples	Initial porosity ()	Sealed porosity ()	Remaining porosity ()	Sealed ratio ()
NC4	11,45	7,56	3,89	65,73
NC5	13,13	9,23	3,9	70,42
NC6	14,95	11,31	3,6	75,07
NC8	13,19	9,97	3,21	75,48
NC10	13,83	11,33	2,5	82,11
NA4	13,02	11,09	1,93	84,99
NA5	16,31	13,91	2,4	84,89
NA6	11,93	9,81	2,12	81,63
NA8	15,25	13,84	1,41	90,71
NA10	14,89	13,46	1,43	90,32