Experimental Investigation to Analyze the Mechanical and Microstructure Properties of 310 SS Performed by TIG Welding

Table 3

L9 orthogonal arrays and their responses.

Exp. no.	Current (A)	Gas flow rate (l/min)	Welding voltage (V)	Microhardness (HV)	Tensile strength (MPa)
1	65	7.5	10	173	472.6
2	65	10	12	172.4	472.1
3	65	12.5	14	171.8	470.8
4	70	7.5	12	170.2	467.6
5	70	10	14	170.7	457.5
6	70	12.5	10	171.4	488
7	75	7.5	14	167.3	444.4
8	75	10	10	169.5	491.9
9	75	12.5	12	168.6	469.7