Exploratory Study of Sensitization in Cryogenically Cooled Ferritic Stainless Steel Welds

Table 2

Melting conditions.

Process	DCEN straight polarity full bead on plate penetration GTA weld
Position	Flat
Melting conditions
Current	90 A
Voltage	30 V
Speed	1, 2.5, 3.5 mm/s
Arc length	1.5 mm
Torch orientation	Vertical
Electrode configuration	2.44 mm W-2 pct. Th., 60° cone included angle
Electrode stick-out	3 mm
Cryogenic coolant	Liquid nitrogen
Shielding environment	99.9% argon at a flow rate of 0.72 L/min