Outline of Chemical Thermodynamics

Shreir, L.L.; Burstein, G.T.

doi:10.1016/b978-0-08-052351-4.50145-x

Cited by 51 publications

(80 citation statements)

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“…The potential of an Ag/AgCl electrode depends on the chloride concentration, which can be from 3430 to 3710 mg/l in blood plasma (ASTM Standard F2129-08, 2008. For blood at 37°C, the potential could therefore range from 0.276 V to 0.278 V (vs. standard hydrogen electrode, SHE), which compares with 0.235 V (SHE) for an SCE at 37°C (Shreir, Jarman, & Burstein, 1994). Hence, the values of E corr measured for the amorphous oxide and as-received stainless steel wire correspond to -0.33 V (SCE) and 0.02 V (SCE), respectively.…”

Section: Figurementioning

confidence: 97%

Corrosion behavior of metallic materials in biomedical applications. II. Stainless steels and Co-Cr alloys

Pound

2014

Corrosion Reviews

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Numerous studies have been performed to investigate the corrosion behavior of Ti and its alloys, 316-type stainless steel, and Co-Cr alloys in simulated and actual physiological liquids. This review is the second of two parts and focuses on 316-type stainless steel and Co-Cr alloys. It deals with the forms of corrosion that are of principal interest with regard to these alloys in vivo: general corrosion, pitting corrosion, crevice corrosion, galvanic corrosion, and fretting corrosion. The review also addresses environmentally assisted cracking in the form of corrosion fatigue and hydrogen embrittlement as well as the use of implantable electrodes.

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Section: Figurementioning

confidence: 97%

Corrosion behavior of metallic materials in biomedical applications. II. Stainless steels and Co-Cr alloys

Pound

2014

Corrosion Reviews

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“…From the cathodic area, through open circuit potential E 0 and current density j corr , the current density rises to its highest value j crit , called the critical point. 10 This area is termed the 'active region'. Thereafter the dissolved corrosion products are adsorbed on the metal surface, lowering the current density value until the passive potential E pas is reached, which represents the potential value at which the metal is passivated with minimum current density value.…”

Section: Potentiodynamic Polarisationmentioning

confidence: 99%

“…When added to steel, Nb preferentially forms carbides, thus preventing sensitisation and intergranular corrosion of the steel. 10 Based on this study, a detailed selection of stainless steels appropriate for use in kefir fermentation process equipment could be performed. All materials tested in our experiments were chosen from the list of steels generally used in the dairy industry.…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

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Testing the corrosion resistance of stainless steels during the fermentation of probiotic drink

Pečar¹,

Slemnik²,

Goršek³

2011

J Sci Food Agric

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“…For organic inhibitors that have the ability to adsorb strongly on metal surface, thus impeding the dissolution reaction, the surface coverage (h) can be evaluated as the inhibition efficiency (E w %/100) [24]. Surface coverage values for the bipyrazole compound P3 have been obtained from the gravimetric weight loss measurements for various concentrations as reported in Table 3.…”

Section: Adsorption Isotherm and Thermodynamic Datamentioning

confidence: 99%

The effect of 1′,3,5,5′-tetramethyl-1′H-1,3′-bipyrazole on the corrosion of steel in 1.0 M hydrochloric acid

et al. 2011

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The effect of some prepared compounds, namely 3,5-dimethyl-1H-pyrazole (P1), 3(5)-amino-5(3)-methylpyrazole (P2), and 1 0 ,3,5,5 0 -tetramethyl-1 0 H-1,3 0 -bipyrazole (P3), on the corrosion behaviour of steel in 1.0 M hydrochloric acid solution as corrosive medium has been investigated at 308 K using weight-loss measurement, potentiodynamic polarisation, linear polarisation, and impedance spectroscopy (EIS). Generally, inhibition efficiency of the investigated compounds was found to depend on the concentration and nature of the inhibitor. P3 was a better inhibitor than P1 and P2, and its inhibition efficiency increased with increasing concentration of inhibitor, attaining 94% above 10 -3 M. Potentiodynamic polarisation studies clearly reveal that P3 acts essentially as a cathodic inhibitor. E (%) values obtained from different methods are in reasonably good agreement. EIS measurements show an increase of transfer resistance with inhibitor concentration. Partial p-charge on atoms was calculated. Correlation between the highest occupied molecular orbital energy E HOMO and inhibition efficiencies was sought. The temperature effect on the corrosion behaviour of steel in 1.0 M HCl without and with different concentrations of inhibitor P3 was studied in the temperature range 308 to 343 K. Thermodynamic data, for example heat of adsorption (DH ads ), entropy of adsorption (DS ads ) and free energy of adsorption (DG ads ) were calculated by use of thermodynamic equations. Kinetic activation data, for example E a , DH*, DS* and pre-exponential factor, were calculated, and are discussed. The inhibiting action of P3 on the corrosion of steel in 1-10 M hydrochloric acid was also studied by weight-loss measurement. The rate constant and reaction constant were calculated for the corrosion reactions. Adsorption of P3 on the steel surface in 1.0 M HCl follows the Langmuir isotherm model.

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Outline of Chemical Thermodynamics

Cited by 51 publications

References 0 publications

Corrosion behavior of metallic materials in biomedical applications. II. Stainless steels and Co-Cr alloys

Corrosion behavior of metallic materials in biomedical applications. II. Stainless steels and Co-Cr alloys

Testing the corrosion resistance of stainless steels during the fermentation of probiotic drink

The effect of 1′,3,5,5′-tetramethyl-1′H-1,3′-bipyrazole on the corrosion of steel in 1.0 M hydrochloric acid

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