Effect of Temperature on the Corrosion Inhibition of Nonionic Surfactant TRITON-X-405 on Ferritic Stainless Steel in 1.0 M H2SO4

2011 ◽  
Vol 51 (1) ◽  
pp. 274-284 ◽  
Author(s):  
Regina Fuchs−Godec ◽  
Miomir G. Pavlović ◽  
Milorad V. Tomić
Keyword(s):  
Stainless Steel ◽  
Nonionic Surfactant ◽  
Corrosion Inhibition ◽  
Ferritic Stainless Steel ◽  
Effect Of Temperature ◽  
Triton X

Synergistic Effect of Thiourea and Surfactants on Corrosion Inhibition of Stainless Steel-410 in Presence of Sulfuric Acid

2014 ◽  
Vol 699 ◽  
pp. 186-191 ◽  
Author(s):  
Sami Ullah ◽  
Mohd Shariff Azmi ◽  
Muhammad Nadeem ◽  
Mohammad Azmi Bustam ◽  
Shaukat Ali Shahid ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Sulfuric Acid ◽  
Corrosion Rate ◽  
Corrosion Inhibition ◽  
Sodium Dodecyl ◽  
Ammonium Bromide ◽  
Inhibitor Concentration ◽  
Corrosion Rates ◽  
Inhibition Performance ◽  
Triton X

The inhibition of corrosion of stainless steel (SS)-410 in sulfuric acid using thiourea and three different surfactants, cetyle trimethyl ammonium bromide (CTAB), sodium dodecyl sulfate (SDS) and X-Triton was studied. Corrosion rates were determined by using corrosion coupons. The corrosion rate was found to be decreased with increase in inhibitor concentration. It was observed that the maximum corrosion inhibition occurred in the post micellar concentration of the surfactants. By optimizing the corrosion inhibition performance of different blends of surfactants and thiourea in 3 M H2SO4,the corrosion inhibition order was found as: Triton X-100 + thiourea > CTAB + thiourea > SDS + thiourea. The best results obtained by the addition of 200 ppm thiourea in 500 ppm of Triton X-100 in 3 M H2SO4acid solution. This blend decreased the corrosion rate of SS-410 to 657.66 mpy.

scholarly journals Low-cycle Fatigue Behavior and Constitutive Relations for a Ferritic Stainless Steel at Elevated Temperatures

2020 ◽  
pp. 34-46
Author(s):  
S. M. Humayun Kabir ◽  
Tae-In Yeo
Keyword(s):  
Numerical Simulation ◽  
Stainless Steel ◽  
Ferritic Stainless Steel ◽  
Constitutive Equations ◽  
Elevated Temperatures ◽  
Low Cycle Fatigue ◽  
Fatigue Behavior ◽  
Constitutive Relations ◽  
Peak Stress ◽  
Effect Of Temperature

In this paper, the tensile and strain-controlled cyclic deformation behavior of a ferritic stainless steel which is developed for the exhaust manifold of automobiles is evaluated experimentally at different temperatures. The effect of temperature on monotonic tensile responses such as yield strength and ultimate tensile strength and the effect of temperature and strain amplitude on the evolution of peak stress are assessed. The objective of this study is also to reveal the mixed mode of cyclic hardening–softening behavior of the ferritic stainless steel under strain-controlled fatigue test conditions. A parameter, critical accumulated plastic strain, is introduced to the constitutive equations for the material for describing the hardening - softening responses. The nonlinear constitutive equations for describing the cyclic responses are implemented into Finite Element code using determined parameters for obtaining numerical simulation. The stabilized hysteretic responses obtained from experiment and predicted from numerical simulation are compared and found to be realistic.

Microstructures and Hardness of CO2 Laser Welds in 409L Ferritic Stainless Steel

2010 ◽  
Vol 48 (04) ◽  
pp. 297-304 ◽  
Author(s):  
Jong Pan Kong ◽  
Tae Jun Park ◽  
Hye Sung Na ◽  
Jeong Kil Kim ◽  
Sang Ho Uhm ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Ferritic Stainless Steel ◽  
Co2 Laser ◽  
Laser Welds
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