Corrosion resistance enhancement of SAE 1020 steel after Chromium implantation by nitrogen ion recoil

Abstract

SAE 1020 construction steel is widely used as mortar reinforcement and small machine parts, but aside good surface properties as high ductility, hardness and wear resistance, its surface is prone to severe corrosion. As it is known, Chromium in amount over 12%-13% in the Fe alloys renders them resistance to several corrosive attacks. SAE 1020 samples were recovered with Chromium film and then bombarded either by nitrogen Ion Beam (IB) or Plasma Immersion Ion Implantation (PIII) to recoil implant Cr atoms in the Fe matrix. Samples treated by 100 keV N+ IB showed irregular, thin Cr profile, remaining a part of the film on the surface, to about 10 nm. Samples treated by 40 kV N PIII presented Cr layer of about 18% at., ranging to around 90 nm. Cr of the film was implanted in the Fe matrix in an almost flat profile. Results of corrosion test showed good performance of the PIII treated sample. The IB treated sample showed some enhancement over the non-treated reference and the only Cr film deposited sample showed no modification on the corrosion behavior as compared to the non-treated reference sample

Effect of Flux Cored arc Welding Process Parameters on Corrosion Resistance of Austenitic Stainless Steel Claddings

“…Low carbon steels are extensively used in the offshore oil and gas industry due to their good mechanical properties and low production cost 1,2 . However, the low corrosion resistance of carbon steel causes losses to the world economy.…”

Metal-free coumarate based ionic liquids and poly(ionic liquid)s as corrosion inhibitors

“…Mild steel, having no more than 2% carbon and no other appreciable alloying element, makes up the largest part of steel production and is used in a vast range of applications, from concrete reinforcement and small machine parts to containers and construction materials. 1,2 However, despite its relatively low cost and good mechanical properties, mild steel is prone to undergo severe corrosion 1 leading to high economic and safety losses. For this reason, understanding and mitigating corrosion of such alloys is of primary importance.…”