What are the effects of sulfur, manganese, phosphorus, aluminum, nickel and copper on the weldability of cast iron?
Sulfur is the most strongly promoting element of cast iron welds to produce white tissues. Sulfur not only enhances the binding force of iron and carbon atoms, but also forms sulfides which distribute at grain boundaries, hindering the diffusion and precipitation of carbon. Especially for ductile iron, many research results show that sulfur is a…
