TY - JOUR T1 - Graphene Coating and Nanocrystalline Alloy Structure: Two Novel Nanotechnology Approaches for Remarkable Corrosion Resistance AU - Raman, RK Singh Y1 - 2018/11/02 PY - 2018 DA - 2018/11/02 N1 - doi: 10.31716/frt.201801003 DO - 10.31716/frt.201801003 T2 - Frontier Research Today JF - Frontier Research Today JO - Front. Res. Today. SP - 1003 VL - 1 C7 - 1003 PB - Frontier Research Today S.A. SN - N2 - This article reviews two reasonably novel approaches for remarkable corrosion resistance of metallic material, and discusses challenges and future opportunities. In the first approach, the nanaocrystalline structure of a corrosion resistant alloy has been found to bring about remarkable improvement in oxidation/corrosion resistance of alloys, as a result of the enhancement in diffusivity of the alloying element that is responsible for theformation of a corrosion barrier layer of protective oxide, due to the nanocrystalline structure (vis-ид-vis the microcrystalline counterpart of the same alloy). In the second approach, just a monolayer or a few atomic layer thick graphene coating was found to improve corrosion resistance of copper, nickel and copper nickel alloys in aggressive chloride solution by up to two orders of magnitude, because of the unique characteristics of graphene, i.e., impermeability and inertness to aggressive fluids. M3 - doi: 10.31716/frt.201801003 UR - http://dx.doi.org/10.31716/frt.201801003 ER -