Interaction of phosphorus-containing inorganic additives with iron surface: quantum-chemical analysis
Three stages of interaction of molecules of phosphorowolframates of alkaline metals on iron surface are investigated: change of a shape of molecules near a surface, formation of the adsorptive complex and its disintegration. It is shown that in the course of adsorption a strong covalent binding between molecules of phosphorowolframates and a surface appears. High strength of this binding, and also low strength of the chain and its flexibility provide effective protection of iron surface against wear.