Corrosion performance of 316L SS and titanium modified austenitic stainless steels in the bleaching stages

Abstract

The present study aims to evaluate the performance of titanium modified austenitic stainless steels in the simulated bleaching stages, viz. washer stage, peroxide and hyprochlorite stages. Potentiodynamic anodic cyclic polarization method was adopted to determine the critical parameters such as corrosion potential, breakdown potential and pit‐protection potential.

Effects of Ti addition on microstructure and the associated corrosion behavior of a 22Cr‐5Ni duplex stainless steel

“…[1][2][3][4] The excellent properties strictly depend on the contents of ferrite and austenite, on their morphologies, composition, and environmental characteristics. [5][6][7][8][9][10] It has been reported that a minor addition of alloying elements, such as niobium, [11][12][13][14] rare earth metals such as cerium, lanthanum, neodymium, praseodymium, [15][16][17][18] copper, [19][20][21][22] and titanium, [23][24][25] also affects the corrosion behavior of stainless steel. Hulya Demiroren investigated the addition of elemental niobium to ferrite stainless steel and indicated that the element of niobium most probably formed niobium oxides to shield the steel.…”

“…[16][17][18] The effect of copper alloying on stainless steel passivation is neither uniform nor definite, and both beneficial and adverse effects have been observed. [19][20][21][22] The pitting corrosion resistance may be greatly improved with titanium stabilization of 316L stainless steel, [23,24] and Ti contributes to the stability of the passive surface of ferrite stainless steel. [25] The minor addition of alloying elements to various grades of stainless steels results in different behaviors in the passive and active regions.…”