Online ISSN : 1881-9664
Print ISSN : 0917-0480
ISSN-L : 0917-0480
Rapid Communication Note
The Effect of Hydrazine Addition for the Behavior of Flow Accelerated Corrosion under the Oxidizing Environment
Yoshinori HashimotoKazutoshi FujiwaraYutaka YamaneAkihiro Sato
Author information

2016 Volume 65 Issue 5 Pages 205-210


An all volatile treatment (oxidizing) (AVT (O)) is expected as countermeasures against flow accelerated corrosion (FAC) of carbon steel piping at a power plant. Dissolved oxygen (DO) in the feed water inhibits FACs while DO can cause local corrosions at high temperature. A hydrazine (N2H4) eliminates DO at high temperature. We discussed the FAC mitigation effect of AVT (O+N2H4) where N2H4 was added to the feed water under AVT (O) condition. From the corrosion test of carbon steel pipes in NH3 solution at 150 ℃ under the high flow rate condition, FAC inhibition effect of DO at 15 μg/L is indicated in the presence of N2H4.

Information related to the author
© 2016 Japan Society of Corrosion Engineering
Previous article Next article