A) the temperature of steel, stainless steel is higher than carbon steel;B) steel liquidity: worse than carbon steel stainless steel;C) steel oxidizing: stainless steel than carbon steel easy oxidation;D) solidification mode: paste solidification is stainless steel, carbon steel is the solidification sequence.
compact oxide, lattice structure is complex, lattice constant is small, iron ion diffusion through their hard, to prevent further oxidation. When the temperature exceeds 560 ℃, Fe2O3 and Fe3O4 form FeO layer below. Lattice structure is simple, lack of solid solution, there is gap in lattice, iron ion diffusion through the FeO layer, thus adding iron oxide.