The effect of elastic tensile stress on inhibition behavior of N-lauroylsarcosine sodium for 304L stainless steel pitting corrosion.

N-lauroylsarcosine sodium is proved to be effective in inhibiting 304 L SS pitting corrosion. Under various elastic tensile stresses, the inhibition behavior of N-LSS on 304 L SS pitting corrosion is studied, and N-LSS increases significantly 304 L SS pitting potential by more than 400 mV. Under small elastic tensile stress (≤16.63 %σ 0.2), the adsorption of N-LSS can inhibit 304 L SS pitting corrosion by enhancing the protection of N-LSS film and specific adsorption effect of N-LSS. Under large elastic tensile stress (≥46.84 %σ 0.2), the decrease of N-LSS adsorption effect reduces the inhibition effect of N-LSS specific adsorption for 304 L SS pitting corrosion growth. • N-LSS could effectively inhibit the initiate and growth of 304 L SS pitting corrosion. • The elastic tensile stress has little effect on 304 L SS pitting corrosion initiation. • The elastic tensile stress can affect the adsorption effect of N-LSS. • Elastic stress affects N-LSS specific absorption on 304 L SS pitting corrosion growth. [ABSTRACT FROM AUTHOR]