Menu
Search
Filters
Close
Menu

98172 EFFECT OF NITRITE CONCENTRATION ON PIT DEPTH IN CARBON STEEL EXPOSED TO SIMULATED RADIOACTIVE WASTE

Picture for 98172 EFFECT OF NITRITE CONCENTRATION ON
Available for download
Product Number: 51300-98172-SG
ISBN: 98172 1998 CP
Author: Philip E. Zapp
$0.00
$20.00
$20.00
The growth of pits in carbon steel exposed to dilute (0.055 M nitrate- bearing) alkaline salt solutions that simulate radioactive waste was investigated in coupon immersion tests. Most coupons were tested in the as-received condition, with the remainder having been heat treated to produce an oxide film. Nitrite, which is an established pitting inhibitor in these solutions, was present in concentrations from 0 to 0.031 M to 0.16 M; the last concentration is known to prevent pitting initiation in the test solution at the 50°C test temperature. The depths of the deepest pits on coupons of particular exposure conditions were measure microscopically and were analyzed as simple, type 1 extreme value statistical distributions, to predict the deepest expected pit in a radioactive waste tank subject to the test conditions. While the growth rate of pits could not be established from these tests, the absolute value of the deepest pits predicted is of the order of 100 mils after 448 days of exposure. The data indicate that even nitrite concentrations insufficient to prevent pitting have a beneficial effect on limiting the growth of deepest pits. Keywords: Localized corrosion, extreme value statistics, coupon immersion, nitrite
The growth of pits in carbon steel exposed to dilute (0.055 M nitrate- bearing) alkaline salt solutions that simulate radioactive waste was investigated in coupon immersion tests. Most coupons were tested in the as-received condition, with the remainder having been heat treated to produce an oxide film. Nitrite, which is an established pitting inhibitor in these solutions, was present in concentrations from 0 to 0.031 M to 0.16 M; the last concentration is known to prevent pitting initiation in the test solution at the 50°C test temperature. The depths of the deepest pits on coupons of particular exposure conditions were measure microscopically and were analyzed as simple, type 1 extreme value statistical distributions, to predict the deepest expected pit in a radioactive waste tank subject to the test conditions. While the growth rate of pits could not be established from these tests, the absolute value of the deepest pits predicted is of the order of 100 mils after 448 days of exposure. The data indicate that even nitrite concentrations insufficient to prevent pitting have a beneficial effect on limiting the growth of deepest pits. Keywords: Localized corrosion, extreme value statistics, coupon immersion, nitrite
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 00382 IMPROVEMENT ON THE SULFIDE STRESS CORROSION
Available for download

00382 IMPROVEMENT ON THE SULFIDE STRESS CORROSION CRACKING PROPERTIES OF HOT ROLLED LINE-PIPE STEELS

Product Number: 51300-00382-SG
ISBN: 00382 2000 CP
Author: Kwang-Seop Ro
$20.00
Picture for 99471 ELECTROCHEMICAL STUDIES OF NITRATE-
Available for download

99471 ELECTROCHEMICAL STUDIES OF NITRATE-INDUCED PITTING IN CARBON STEEL

Product Number: 51300-99471-SG
ISBN: 99471 1999 CP
Author: Philip E. Zapp, John W. Van Zee
$20.00
Picture for 09327 Corrosion Resistance of Various Glass Fiber Reinforcements
Available for download

09327 Corrosion Resistance of Various Glass Fiber Reinforcements

Product Number: 51300-09327-SG
ISBN: 09327 2009 CP
Author: Kevin Spoo
Publication Date: 2009
$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