Effects of Welding Heat Input on Microstructure and Electrochemical Behavior of Flux-Cored Arc-Welded Q690 HSLA Steel

Table 3

Welding parameters of each welding process.

Number	Preheating temperature (°C)	Current (A)	Voltage (V)	Interpass temperature(°C)	Welding speed (cm·min^−^1)	Welding heat input (kJ·cm^−^1)
1	150	200	25	150	30	10
2	150	240	28	150	20	20