Characterization of Thermally Sprayed Coated GT Components Made of 3D Printing Based Selective Laser Melting Processed Inconel Alloy 718

Table 5

Experimental results of microhardness, % porosity, and Ra for different SODs.

Stand-off distance in mm	Microhardness in SLM sample	Microhardness in IN718 sample	% porosity in SLM sample	% porosity in IN718 sample	in SLM sample (μm)	in IN718 samples (μm)
75	1045	1110	9.5	7.8	9.9	7.7
90	1056	1120	9.2	7.5	9.2	7.2
100	1080	1135	8.85	7.35	9	6.7
110	1120	1190	8.6	7	8.8	6.4
125	1155	1205	8.15	6.8	8.5	6.2
140	1125	1160	8.5	7.7	8.7	6.6
150	1070	1120	8.9	8.2	8.95	6.85
160	1035	1085	9.45	8.9	9.4	7.6
180	985	1035	11.5	9.8	10	7.4