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The Effect Of Dissolved Ozone On The Corrosion Behavior Of Cu 30 Ni And 304l Stainless Steel In 05 N Nacl Solutions
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Book Synopsis The Effect of Dissolved Ozone on the Corrosion Behavior of Cu-30 Ni and 304L Stainless Steel in 0.5 N NaCl Solutions by : H. H. Lu
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).
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1990 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technical Reports Awareness Circular : TRAC. by :
Download or read book Technical Reports Awareness Circular : TRAC. written by and published by . This book was released on 1989-12 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Process in Liquid and Solid Phase by : Alfonso Jimenez
Download or read book Chemical Process in Liquid and Solid Phase written by Alfonso Jimenez and published by CRC Press. This book was released on 2013-08-17 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new book offers research and updates on the chemical process in liquid and solid phases. The collection of topics in this book reflect the diversity of recent advances in chemical processes with a broad perspective that will be useful to scientists as well as graduate students and engineers. The book will help to fill the gap between theory an
Book Synopsis The Effects of Dissolved Ozone on the Corrosion Behavior of 304 Stainless Steel, Monel 400 and Naval Brass in Artificial Sea Water by :
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.
Book Synopsis Kinetics and Mechanism of Ozone Reactions with Organic and Polymeric Compounds in Liquid Phase by : Slavtcho Rakovsky
Download or read book Kinetics and Mechanism of Ozone Reactions with Organic and Polymeric Compounds in Liquid Phase written by Slavtcho Rakovsky and published by . This book was released on 1998 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two Bulgarian researchers summarize their contributions to the field of ozone chemistry, and outline future research trends. The monograph begins with the ozonolysis of hydrocarbons, oxygen containing organic compounds, and alkenes in liquid phase. The remaining chapters deal with ozone degradation and stabilization of real rubber systems; quantum chemical calculations of ozonolysis of organic compounds; properties, preparations, analysis, and decomposition of ozone; and ozone applications to ecology, industry, and medicine. Annotation copyrighted by Book News, Inc., Portland, OR
Download or read book Materials Performance written by and published by . This book was released on 1990 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Abstracts written by and published by . This book was released on 1990 with total page 2598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1990 with total page 1316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1990-02 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 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 by : W. E. Wyllie
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:
Book Synopsis The Effect of Dissolved Ozone on the Corrosion Behavior of Stainless Steels in Artificial Seawater by : W. E. Wyllie
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:
Book Synopsis The Effects of Ozone on the Corrosion Behavior of 304 Stainless Steel, Monel 400 and Naval Brass in Artificial Sea Water by : Barbara E. Brown
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:
Book Synopsis The Effects of Dissolved Ozone on the Corrosion Behavior of Nickel-bases Chromium-molybdenum Alloys in Artificial Seawater by : Barbara E. Brown
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:
Book Synopsis The Effect of Dissolved Ozone on the Corrosion Behavior of Monel 400, Monel K-500, CDA 706, and CDA 715 in Seawater by : J. Stevens
Download or read book The Effect of Dissolved Ozone on the Corrosion Behavior of Monel 400, Monel K-500, CDA 706, and CDA 715 in Seawater written by J. Stevens and published by . This book was released on 1998 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ozone is being considered as an alternative to chlorine based biocides for use in marine heat exchange systems. Ozone has several advantages over chlorine based biocides: including stronger oxidizing power, the ability to be produced on site, and degradation to oxygen. Before ozone is used in heat exchange systems it is important to understand its impact on the corrosion behavior of the metals used in these systems. Two separate studies were carried out: the first at the Corrosion Lab, Rensselaer Polytechnic Institute in Troy, NY comparing ozonated and aerated seawater for thirty, sixty, and ninety days, and the second, at the LaQue Center for Corrosion Technology, Inc. in Wrightsville Beach, N.C. which compared ozonated and chlorinated seawater environments for sixty days. Electrochemical experiments were performed and compared with crevice coupon immersion tests to determine effects of dissolved ozone on the corrosion behavior of Monel 400, Monel K-500, 90Cu/10Ni (CDA 706), and 70Cu/30Ni (CDA 715). Studies in-lab correctly predicted the morphology of crevice corrosion in ozonated seawater but, did not predict the extent of corrosion seen in the North Carolina tests.
Book Synopsis The Effect of Ozone on the Corrosion Behavior of Stainless Steels in Artificial Seawater by : William E. II. Wyllie
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 Metals Abstracts written by and published by . This book was released on 1997 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt:
