Menu
Search
Filters
Close
Menu

Monitoring the Corrosion of Copper-Nickel-Chromium Castings Using Electrochemical Frequency Modulation

Picture for 11354 Monitoring the Corrosion of Copper-Nickel-Chromium Castings
Available for download
Product Number: 51300-11354-SG
Author: Derek R. Lenard, Yueping Wang and Bradley A. Noren
Publication Date: 2011
$0.00
$20.00
$20.00
Cast nickel aluminum bronze has been used extensively in some components in seawater systems because of its generally good toughness. However, this alloy can be susceptible to selective phase corrosion, which has led to requirements for removal of components on a fixed timetable to test for the presence of this corrosion. In an effort to reduce the costs associated with these inspections, some of these components will be replaced with those made from a cast copper-nickel-chromium alloy. This alloy should be free from this form of corrosion, particularly after the development of a protective film during exposure to clean, flowing seawater. Polluted seawater containing sulfides can interfere with the development of this protective film on other copper-nickel alloys. Electrochemical frequency modulation, along with other electrochemical techniques, will be used to monitor the effects of initial exposure to clean seawater or to polluted harbor water on the corrosion of cast copper-nickel-chromium specimens.

Keywords: electrochemical frequency modulation, polarization resistance, corrosion rate, copper-nickel, seawater, Tafel
Cast nickel aluminum bronze has been used extensively in some components in seawater systems because of its generally good toughness. However, this alloy can be susceptible to selective phase corrosion, which has led to requirements for removal of components on a fixed timetable to test for the presence of this corrosion. In an effort to reduce the costs associated with these inspections, some of these components will be replaced with those made from a cast copper-nickel-chromium alloy. This alloy should be free from this form of corrosion, particularly after the development of a protective film during exposure to clean, flowing seawater. Polluted seawater containing sulfides can interfere with the development of this protective film on other copper-nickel alloys. Electrochemical frequency modulation, along with other electrochemical techniques, will be used to monitor the effects of initial exposure to clean seawater or to polluted harbor water on the corrosion of cast copper-nickel-chromium specimens.

Keywords: electrochemical frequency modulation, polarization resistance, corrosion rate, copper-nickel, seawater, Tafel
Product tags
Also Purchased
Picture for 11296 Environmentally Assisted Cracking Evaluation of UNS N06686
Available for download

Environmentally Assisted Cracking Evaluation of UNS N06686 Using Constant Extension Rate Testing

Product Number: 51300-11296-SG
ISBN: 2011 11296 CP
Author: Michelle G. Koul and Peggy S. LeGrand
Publication Date: 2011
$20.00
Picture for 11352 An Assessment of Biofouling Resistance and Copper Release Rate of 90-10 Copper-Nickel Alloy
Available for download

11352 An Assessment of the Biofouling Resistance and Copper Release Rate of 90-10 Copper-Nickel Alloy

Product Number: 51300-11352-SG
Author: Carol A. Powell, James H. Michel and Harold T. Michels
Publication Date: 2011
$20.00
Picture for 11398 Investigation of Elemental Sulfur Corrosion Mechanisms
Available for download

11398 Investigation of Elemental Sulfur Corrosion Mechanisms

Product Number: 51300-11398-SG
ISBN: 2011 11398 CP
Author: Haitao Fang, Bruce Brown, David Young, Srdjan Nešic
Publication Date: 2011
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support