ELECTROCHEMICAL CORROSION TESTS FOR TANK 241-AY-101 CORE 325 SEGMENTS 16R1 & 16R2
The interstitial liquid in the double-shell tank 241-AY-101 settled solids layer is below the hydroxide chemistry control limit required by HNF-SD-WM-TSR-006, Tank Farms Technical Safety Requirements, Administrative Control 5.16, 'Corrosion Mitigation Controls'. Operating tanks outside of the specification may increase the propensity corrosion of the carbon steel wall. This report is concerned with generalized electrochemical corrosion mechanism that may occur at specific loci. All cyclic potentiodynamic polarization scans exhibited a negative hysteresis, scan reversing at lower current density, indicating that there was no pitting propensity. The general electrochemical corrosion rates ranged from 4.4E-02 to 1.5E-03 mpy with the first round of coupons, while the second round yielded corrosion rates of 2.5E-03 to 2.9E-02 mpy.
- Research Organization:
- Hanford Site (HNF), Richland, WA
- Sponsoring Organization:
- USDOE Assistant Secretary for Environmental Management (EM)
- DOE Contract Number:
- AC27-99RL14047
- OSTI ID:
- 940019
- Report Number(s):
- RPP-RPT-35554 Rev 1
- Country of Publication:
- United States
- Language:
- English
Similar Records
Evaluation of sodium nitrite addition with tank 241-AY-102 waste
The PM/S module and the BIO/TSR requirements comparison report summary
Double shell tanks (DST) chemistry control data quality objectives
Technical Report
·
Mon Oct 29 23:00:00 EST 2001
·
OSTI ID:807482
The PM/S module and the BIO/TSR requirements comparison report summary
Technical Report
·
Tue Feb 23 23:00:00 EST 1999
·
OSTI ID:781542
Double shell tanks (DST) chemistry control data quality objectives
Technical Report
·
Wed Aug 29 00:00:00 EDT 2001
·
OSTI ID:807269