Electrochemical synthesis and corrosion inhibition performance of poly-5-aminoindole on stainless steel

2016 ◽  
Vol 97 ◽  
pp. 110-114 ◽  
Author(s):  
M. Düdükcü ◽  
G. Avcı
Keyword(s):  
Stainless Steel ◽  
Corrosion Inhibition ◽  
Electrochemical Synthesis ◽  
Inhibition Performance

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.

Performance Evaluation of Three Scale and Corrosion Inhibitors in Simulated Cooling Water in a Power Plant

2013 ◽  
Vol 864-867 ◽  
pp. 386-389
Author(s):  
Xue Juan Wang ◽  
Hong Hua Ge ◽  
Wei Wei Lin ◽  
Min Zhang
Keyword(s):  
Stainless Steel ◽  
Performance Evaluation ◽  
Power Plant ◽  
Corrosion Inhibition ◽  
Corrosion Inhibitors ◽  
316L Stainless Steel ◽  
Cooling Water ◽  
Uniform Corrosion ◽  
Scale Inhibition ◽  
Inhibition Performance

Performance evaluation of three scale and corrosion inhibitors in simulated cooling water according to generating set in a power plant was presented in this paper. The scale and corrosion inhibition performance of the inhibitors were conducted by the methods of the static scale inhibition and rotary coupon tests respectively. The results indicated that 316L stainless steel has low uniform corrosion rate ranging from 0.0042 to 0.0048 mm/a in the simulated cooling water both with and without inhibitors. The drops of hardness in water with No.1 and No.3 inhibitors were slight, and these two inhibitors were of good scale inhibition while No.2 was poor. Keywords: simulated cooling water; scale inhibition; corrosion inhibition; performance evaluation; 316L stainless steel.

Corrosion Inhibition of Martensitic Stainless Steel in Chloride Medium by Calcium Gluconate-Solanum Tuberosum Extract as Surfactant

2019 ◽  
Vol 796 ◽  
pp. 103-111
Author(s):  
Olaitan Akanji ◽  
Olawale S. Fatoba ◽  
Esther Titilayo Akinlabi
Keyword(s):  
Stainless Steel ◽  
Solanum Tuberosum ◽  
Corrosion Rate ◽  
Corrosion Inhibition ◽  
Calcium Gluconate ◽  
Martensitic Stainless Steel ◽  
Inhibitor Concentration ◽  
Chloride Medium ◽  
Maximum Inhibition ◽  
Inhibition Performance

Corrosion inhibition of martensitic stainless steel (MSS) in magnesium chloride was investigated in the absence and presence of calcium gluconate as corrosion inhibitor at ambient temperature. The effects of inhibitor concentration were studied using weight loss and polarization method. The results obtained showed that calcium gluconate acts as an inhibitor for martensitic stainless steel in MgCl and decreases the corrosion rate. The inhibition performance was found to increase with the increase in inhibitor concentration. The maximum inhibition efficiency obtained was 99 % at 2g/v inhibitor concentration, the adsorption of calcium gluconate on the surface of Martensitic stainless steel was found to obey Langmuir adsorption isotherm. However, the addition of solanum tuberosum extract in the inhibitor decreases the corrosion rate of martesitic steel significantly in chloride solution.

Preparation and Performance of Enviromentally Friendly Chemical Cleaner

2012 ◽  
Vol 557-559 ◽  
pp. 1552-1555
Author(s):  
Zhen Fa Liu ◽  
Li Hui Zhang ◽  
Mei Fang Yan ◽  
Rui He
Keyword(s):  
Stainless Steel ◽  
Citric Acid ◽  
Carbon Steel ◽  
Corrosion Inhibition ◽  
Sulfamic Acid ◽  
Corrosion Testing ◽  
Inhibition Mechanism ◽  
Biodegradation Rate ◽  
And Performance ◽  
Inhibition Performance

A enviromentally friendly solid chemical cleaner is made from citric acid,sulfamic acid,polyasparticacid,sulfourea and accessory ingredient.The performances of corrosion inhibition and biodegradability of cleaner are studied by the static hanging piece and shaking-bottle incubating test.The corrosion inhibition mechanism of cleaner is studied by potent iodynamic polarization and the corrosion testing piece is observed by means of SEM.The results show that the cleaner has good corrosion inhibition performance on carbon steel,stainless steel,copper and aluminum.The biodegradation rate is above 94% after 28 days.

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