Datasets on the corrosion behaviour of nanostructured AISI 316 stainless steel treated by SMAT

Abstract

The present paper contains the experimental datasets on the corrosion behaviour of nanostructured AISI 316 stainless steel (SS) through polarization tests in 0.6 M NaCl aqueous solution at room temperature. The nanostructured layers were first obtained through surface mechanical attrition treatment (SMAT) method and the data information on the corrosion behaviour of the nanostructured layer was thereafter collected. Through potentiodynamic polarization tests and electrochemical impedance spectroscopy (EIS) studies, the experimental datasets were obtained to investigate the combined effects of SMAT and low temperature annealing on the corrosion behaviour of 316 SS. The experimental datasets obtained include the open circuit potential (OCP), corrosion current densities, corrosion potential, Nyquist, impedance and phase angle. The datasets provided in this article will be of great help to most aerospace, automobile, and manufacturing industries in determining the actual and practical corrosion behaviour of AISI 316 SS in corrosive and aggressive environment.

Corrosion Resistance, Evaluation Methods, and Surface Treatments of Stainless Steels

“…To a large extent, the OCP test determines the stability of samples in the electrolyte before performing polarization and EIS tests. Here, it is believed that the higher the corrosion potential, the more stable the sample, and probably the better the corrosion resistance [5,11], i.e., the sample "A" in Figure 1(a) possessed higher corrosion potential and is therefore expected to be more stable than sample "B". The potentiodynamic polarization shows the corrosion behaviour in terms of corrosion current density (i corr ) and corrosion potential (E corr ) which can be determined from the corrosion graph using the Tafel extrapolation method.…”

“…Even though they exhibit good corrosion resistance, efforts have continually been made to further improve the corrosion resistance behaviour of stainless steels. Heat treatment such as annealing due to the oxidation of steel surface [4][5][6], surface mechanical treatment [7][8][9][10][11][12], coatings/electrodepositions [13][14][15][16], alloying, machining/molding [17] and many more are presently in use to further improve the corrosion resistance behaviour of stainless steels. Other protection methods include epoxy coating, cathodic protection, and thicker concrete cover.…”

Comprehensive review of various corrosion behaviours on 316 stainless steel

“…From the potentiodynamic polarization test and electrochemical impedance spectroscopy (EIS) studies, low-temperature annealing and the combined SMAT effect are obtained. By the comparison of the 316 stainless steel corrosion resistance, the SMAT technique is suitable from other coating techniques in this study [57]. After this process, the treated surface is polished for reducing the oxidation effect and surface roughness.…”

Corrosion resistance of surface-conditioned 301 and 304 stainless steels by salt spray test

“…In another study [16], the corrosion resistance of both AZ91D and AM50 alloys decreased with an increase in chloride concentration. After coatings/electrodeposition [27] and surface modifications by rolling [28], machining and moulding, mechanical treatment [29], an improvement in the electrochemical properties of 316 steel [30][31][32][33], 301 steel [4], 17-4PH steel [34], 304 steel [35], and mild steel was also reported. This was attributed to the passivation ability of the coating and nanostructured layers generated on the sample surfaces which protect the sample outer surface from corrosion especially in aggressive conditions.…”