Effect of Alloying Elements on Notch Toughness of Basic Weld Metsls (Report 5)

Effect of Phosphorus

Abstract

Phosphorus has strong tendency to from segregated structure in weld metals and coarsens ferrite grain size by forming the untransformed α phase.
Silicon and aluminium were used as deoxidizer in this experiment.
In higher silicon and aluminium contents, the transition temperature begins to increase at the lesser contents of phosphorus.