Effects of Alloying Elements on Notch Toughness of Basic Weld Metals (Report 7)

Effect of Carbon in the Silicon Deoxidation

Abstract

In ordinary manual arc welding, the weld metals was obtained by successive addition of graphite from lime-fluorides type flux. The effect of carbon on Charpy V-noth properties was determined on the weld metals thus obtained.
Carbon fines ferrite grain size of weld metals, reduces maximum energy rapidly, increases transition temperature at a rate of 15°C per 0.1%, and widens transition range regularly.