Abstract
When the mild steel is surfaced with high alloy steel by welding, the penetration of overlayered metal into mother metal is so deep that the overlayered metal is diluted and damaged its mechanical properties. This report shows how to proteat the dilution of overlayered metal by mother metal.
Here are several method deviced for this purpose. Among them, it was confined that the mother metal coating method, had shown the best results. In this method, mother metal is coated with the powdered, or the coating flux which are riched with alloying element (for example, Ferro-manganese powder) and the arc which is generated between two mild steel welding rods connected to one A. C. welder is used for melting and alloying coating flux and molten metal from two welding rods on the surface of the mother metal, but the heat energy of arc is scarecely used for melting the mother metal and then the penetration is little here are some data and results as regard to these method but these experiment is on the way. Thence more development is hoped.
