Study of Microstructure and Properties of 316L with Selective Laser Melting Based on Multivariate Interaction Influence

Table 3

Experimental results.

Exp. no.	Laser power (W)	Scanning speed (mm/s)	Scanning interval (mm)	Layer thickness (mm)	Angle with the xz plane	Angle with the xy plane	Surface roughness (μm)	Relative density (%)	Tensile strength (MPa)	Elongation rate (%)
1	140	700	0.08	0.02	45	45	4.69	87.92	543.69	23.22
2	160	700	0.08	0.02	45	45	6.46	89.59	497.90	45.00
3	140	900	0.08	0.02	45	45	4.62	96.28	507.16	38.40
4	160	900	0.08	0.02	45	45	6.99	89.19	590.96	37.62
5	140	700	0.08	0.04	45	45	8.30	86.31	171.31	2.69
6	160	700	0.08	0.04	45	45	8.87	86.25	449.16	33.63
7	140	900	0.08	0.04	45	45	8.43	75.80	52.87	1.39
8	160	900	0.08	0.04	45	45	11.25	80.07	202.25	3.21
9	150	700	0.07	0.03	0	45	13.43	85.95	313.03	6.18
10	150	900	0.07	0.03	0	45	9.53	82.10	129.84	3.11
11	150	700	0.09	0.03	0	45	9.07	82.17	211.51	3.76
12	150	900	0.09	0.03	0	45	12.44	73.83	138.42	4.42
13	150	700	0.07	0.03	90	45	11.29	86.09	217.35	3.87
14	150	900	0.07	0.03	90	45	12.06	85.89	169.67	5.71
15	150	700	0.09	0.03	90	45	13.50	82.67	116.81	3.79
16	150	900	0.09	0.03	90	45	11.00	73.41	103.16	1.12
17	150	800	0.07	0.02	45	0	10.42	89.49	553.97	29.83
18	150	800	0.09	0.02	45	0	9.72	86.52	536.03	29.28
19	150	800	0.07	0.04	45	0	25.53	73.78	340.04	16.54
20	150	800	0.09	0.04	45	0	18.02	66.18	293.15	9.73
21	150	800	0.07	0.02	45	90	6.45	88.29	457.36	48.52
22	150	800	0.09	0.02	45	90	7.90	92.08	484.48	46.72
23	150	800	0.07	0.04	45	90	5.04	89.11	233.40	6.24
24	150	800	0.09	0.04	45	90	5.64	79.47	221.49	5.11
25	140	800	0.08	0.02	0	45	7.16	90.17	546.57	51.08
26	160	800	0.08	0.02	0	45	6.03	82.10	565.66	33.21
27	140	800	0.08	0.04	0	45	12.21	83.16	72.06	2.33
28	160	800	0.08	0.04	0	45	11.51	87.64	179.40	6.48
29	140	800	0.08	0.02	90	45	5.86	93.39	540.82	23.34
30	160	800	0.08	0.02	90	45	5.97	95.04	517.92	45.01
31	140	800	0.08	0.04	90	45	11.02	73.50	90.66	2.87
32	160	800	0.08	0.04	90	45	10.03	77.03	234.72	19.33
33	150	700	0.08	0.03	0	0	20.17	90.18	419.23	19.90
34	150	900	0.08	0.03	0	0	23.38	86.38	237.74	1.67
35	150	700	0.08	0.03	90	0	17.70	79.39	550.22	16.28
36	150	900	0.08	0.03	90	0	15.21	80.95	404.71	16.19
37	150	700	0.08	0.03	0	90	5.66	90.36	365.37	13.68
38	150	900	0.08	0.03	0	90	5.38	82.70	292.86	4.97
39	150	700	0.08	0.03	90	90	4.36	90.41	330.01	11.12
40	150	900	0.08	0.03	90	90	5.38	87.71	324.01	7.74
41	140	800	0.07	0.03	45	0	16.60	79.59	421.77	21.52
42	160	800	0.07	0.03	45	0	11.52	87.11	536.21	26.19
43	140	800	0.09	0.03	45	0	14.60	79.28	512.41	20.90
44	160	800	0.09	0.03	45	0	19.87	68.65	366.55	13.09
45	140	800	0.07	0.03	45	90	4.71	88.49	327.83	8.79
46	160	800	0.07	0.03	45	90	4.76	89.06	386.66	19.23
47	140	800	0.09	0.03	45	90	4.21	85.47	266.28	2.62
48	160	800	0.09	0.03	45	90	5.59	72.59	386.67	8.83
49	150	800	0.08	0.03	45	45	9.33	89.24	181.02	8.29
50	150	800	0.08	0.03	45	45	8.87	86.38	246.68	6.62
51	150	800	0.08	0.03	45	45	10.52	79.02	195.18	6.57
52	150	800	0.08	0.03	45	45	12.64	81.20	191.50	1.59
53	150	800	0.08	0.03	45	45	10.33	82.59	152.35	3.19
54	150	800	0.08	0.03	45	45	8.95	85.10	194.44	1.69