Download or read book Part I The Effect of Dissolved Ozone on the Corrosion Behavior of Stainless Steels in Artificial Seawater Part II The Effect of Dissolved Ozone on the Corrosion Behavior of Ni Cr Mo Alloys in Artificial Seawater written by and published by . This book was released on 1997 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: The corrosion resistance of austenitic stainless steels in artificial seawater containing 0.2 to 0.4 mg/L dissolved ozone was investigated. According to cyclic polarization data, UNS S30400 and S31600 stainless steels are resistant to pit initiation after 8 weeks exposure to ozonated artificial seawater. However, if crevices exist, crevice corrosion is more severe in ozonated vs. aerated artificial seawater. Maximum crevice corrosion penetration rates of 8 and 5 mm/y were recorded for UNS S30400 and S31600, respectively, in ozonated artificial seawater compared to only 0.4 to 0.5 mm/y under aerated conditions. Mixed potential analysis of anodic and cathodic polarization predicts crevice corrosion rates for UNS S31600 that are in excellent agreement with the immersion sample data. Highly alloyed Ni, Cr, Mo, and N-bearing austenitic stainless steels are resistant to crevice corrosion in aerated and ozonated artificial seawater. However, differential oxidation corrosion was observed between surfaces of high and low ozone concentration, leading to local transpassive dissolution manifested as surface etching and superficial intergranular corrosion. After 47 weeks exposure to ozonated artificial seawater, microscopic pitting was observed in crevices of high alloyed stainless steels. Although intergranular corrosion and microscopic pitting of highly alloyed stainless steels are not considered severe, these modes of corrosion warrant further investigation in the interest of corrosion resistance in long term (> 1 year) service under oxidizing conditions in seawater.
Download or read book The Effect of Dissolved Ozone on the Corrosion Behaviour of Stainless Steels in Artificial Seawater The Effect of Dissolved Ozone on the Corrosion Behaviour of Ni Cr Mo Alloys in Artificial Seawater written by W. E. Wyllie and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Dissolved Ozone on the Corrosion Behavior of Stainless Steels in Artificial Seawater written by W. E. Wyllie and published by . This book was released on 1997 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bayesian Network Modeling of Corrosion written by Narasi Sridhar and published by Springer Nature. This book was released on with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Dissolved Ozone on the Corrosion Behavior of 304 Stainless Steel Monel 400 and Naval Brass in Artificial Sea Water written by and published by . This book was released on 1993 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of 0.02, 1.2 and 2.3 mg/L ozone on the corrosion behavior of 304 stainless steel, Monel 400, and naval brass were studied at room temperature in artificial sea water at pH 7.5, and the results were compared with those obtained for aerated solutions. Corrosion potentials and cyclic polarization curves were measured after 1 and 17 hour exposure times. Instantaneous corrosion rates were measured using linear polarization resistance (LPR) techniques. Long term (30 day) crevice corrosion experiments were also performed on stainless steel and naval brass in aerated and 0.8 mg/L ozonated solutions. Increasingly noble corrosion potentials were observed in the cases of stainless steel and Monel with increasing ozone concentration due to the noble redox potential of ozone. Naval brass, on the other hand, maintained a fairly constant corrosion potential, independent of ozone concentration, due to the formation of a bulk corrosion product on the metal surface. LPR measurements on naval brass reflected the corrosion rates of both zinc and copper due to dezincification occurring on the metal surface. These corrosion rates were found to Corrosion, Stainless steel, Copper nickel alloy, Dissolved ozone, Chloride solutions be independent of ozone concentration and exposure time, although it appears that exposure to 0.02 mg/L ozone after 17 hours resulted in complete dezincification at the surface. The corrosion rate of Monel was found to increase at elevated ozone concentrations, independent of exposure time. Stainless steel, however, showed a decreasing corrosion rate with increasing ozone concentration after one hour due to ozone quickly stabilizing the passive film.
Download or read book The Effect of Ozone on the Corrosion Behavior of Stainless Steels in Artificial Seawater written by William E. II. Wyllie and published by . This book was released on 1996 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Ozone on the Corrosion Behavior of 304 Stainless Steel Monel 400 and Naval Brass in Artificial Sea Water written by Barbara E. Brown and published by . This book was released on 1993 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Dissolved Ozone on the Corrosion Behavior of Nickel bases Chromium molybdenum Alloys in Artificial Seawater written by Barbara E. Brown and published by . This book was released on 1998 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Dissolved Ozone on the Corrosion Behavior of Cu 30 Ni and 304L Stainless Steel in 0 5 N NaCl Solutions written by H. H. Lu and published by . This book was released on 1989 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrochemical experiments on the effect of dissolved ozone on the corrosion behavior of Copper-30 Nickel and 304 L stainless steel have been performed in 0.5 N Sodium chloride solutions at room temperature. The experiments performed included measurements of corrosion potential as a function of time and ozone concentrations, cyclic polarization experiments, iso-potential measurements of current densities and Auger electron spectroscopy studies of the chemical composition of the corrosion product films. The results of these experiments have shown that for both Cu-based alloy and the stainless steel, the corrosion potential exhibits a marked shift to more noble values (approx. 300 mv) for ozone concentrations less the 0.2 - 0.3 mg/l. At higher ozone concentrations the corrosion potential is virtually independent of the level of ozone dissolved in the solution. The presence of dissolved ozone resulted in a reduction in the corrosion rate for the Cu-30 Ni alloy, as measured by a significant decrease in the current density at a constant applied potential. This improvement in the corrosion resistance appears to be related to a reduction in the corrosion product film thickness and a higher fraction of oxygen to chloride in the corrosion product film. For the stainless steel, Auger electron spectroscopy indicated no appreciable differences between the passive film produced in ozonated solutions versus those in unozonated solutions. Keywords: Passivity; Pitting. (AW).
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Materials Performance written by and published by . This book was released on 1996 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Dissolved Ozone on the Corrosion Behaviour of Nickel based Chromium molybdenum Alloys in Artificial Seawater Report No 4 to the Office of Naval Research written by B. E. Brown and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interim Results on the Corrosion Behavior of Engineering Alloys in Ozonated Artificial Seawater written by W. E. Wyllie and published by . This book was released on 1996 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metals Abstracts written by and published by . This book was released on 1994 with total page 1584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Corrosion in Seawater Systems written by Antony Donald Mercer and published by Prentice Hall. This book was released on 1990 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: While mainly concerned with corrosion of stainless steels and corrosion aspects of chlorination in sea water, this book also addresses marine fouling and the performance of other materials, notably copper-based alloys.
Download or read book A Working Party Report on Marine Corrosion of Stainless Steels written by and published by . This book was released on 1993 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seawater Corrosion Test Program written by and published by . This book was released on 1971 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
