(Invited) Beneficial Role of Interstitial Carbon on Corrosion Resistance of Carbon Steels

摘要

Martensitic carbon steels with fine grains are used as important industrial materials. Interstitial carbon atoms are located in the octahedral sites in the body-centered tetragonal (bct) crystal structure, and bring high strength to martensite. Although it has been reported that the interstitial carbon has the beneficial effect on the corrosion resistance of steels, the role of interstitial carbon is still unclear. In this research, first-principles calculations were applied to explore the role of interstitial carbon on the corrosion resistance of martensite.