title: Formation of Surface Corrosion-Resistant Nanocrystalline Structures on Steel.
abstract: Engineering materials with nanocrystalline structure could be exploited under simultaneous action of mechanical loading and corrosion environments; therefore, their corrosion resistance is important. Surface nanocrystalline structure was generated on middle carbon steels by severe plastic deformation using the method of mechanical pulse friction treatment. This treatment additionally includes high temperature phase transformation and alloying. Using a complex of the corrosive, electrochemical and physical investigations, it was established that nanocrystalline structures can be characterized by lower or increased corrosion resistance in comparison with the reference material. It is caused by the action of two confronting factors: arising energy level and anticorrosive alloying of the surface layer.
authors.affiliation: Karpenko Physico-Mechanical Institute of NAS of Ukraine, 5 Naukova Str., 79060, Lviv, Ukraina. nykyfor@ipm.lviv.ua.
authors.forename: Hryhoriy
authors.initials: H
authors.lastname: Nykyforchyn
authors.affiliation: Karpenko Physico-Mechanical Institute of NAS of Ukraine, 5 Naukova Str., 79060, Lviv, Ukraina. kyryliv@ipm.lviv.ua.
authors.forename: Volodymyr
authors.initials: V
authors.lastname: Kyryliv
authors.affiliation: Karpenko Physico-Mechanical Institute of NAS of Ukraine, 5 Naukova Str., 79060, Lviv, Ukraina. okyryliv@yahoo.com.
authors.forename: Olha
authors.initials: O
authors.lastname: Maksymiv
authors.affiliation: Karpenko Physico-Mechanical Institute of NAS of Ukraine, 5 Naukova Str., 79060, Lviv, Ukraina. zvenomyra@ipm.lviv.ua.
authors.forename: Zvenomyra
authors.initials: Z
authors.lastname: Slobodyan
authors.affiliation: Karpenko Physico-Mechanical Institute of NAS of Ukraine, 5 Naukova Str., 79060, Lviv, Ukraina. tsyrulnyk@ipm.lviv.ua.
authors.forename: Oleksandr
authors.initials: O
authors.lastname: Tsyrulnyk
keywords: Corrosion resistance; Mechanical pulse treatment; Middle carbon steel; Nanocrystalline structure; Surface alloying; Surface layer