Corrosion of nickel and Monel welds of steel in chlorine trifluoride
Failures in the weld areas of nickel-plated steel pipe carrying chlorine trifluoride, ClF/sub 3/, prompted this investigation to determine the effect of weld composition on corrosion by ClF/sub 3/. Monel/steel and nickel/steel alloys of composition to simulate weld overlays were tested to determine their corrosion rates in ClF/sub 3/ at 200/degree/F and 300/degree/F. For both nickel/steel and Monel/steel, the corrosion rate was higher at the higher temperature. For nickel/steel alloys at compositions up to 50% iron, which would cover a range considered normal for welding, the corrosion rate would be within acceptable limits. For Monel/steel alloys, compositions up to 35% iron have an acceptable corrosion rate. Above this, the corrosion would be greater than a tolerable amount. It should pose no problem to keep the heat input to the weld low enough to produce a Monel weld with an iron content below 35%. 2 refs., 5 figs., 2 tabs.
- Research Organization:
- Portsmouth Gaseous Diffusion Plant, OH (USA)
- DOE Contract Number:
- AC05-76OR00001
- OSTI ID:
- 6911202
- Report Number(s):
- POEF-T-3487; ON: DE88014122
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CHLORINE COMPOUNDS
CORROSIVE EFFECTS
FLUORIDES
MONEL
CHEMICAL COMPOSITION
CORROSION
NICKEL
NICKEL ALLOYS
PIPES
WELDED JOINTS
STEELS
EXPERIMENTAL DATA
HIGH TEMPERATURE
PLATING
SIMULATION
TEMPERATURE EFFECTS
ALLOYS
CHEMICAL REACTIONS
COPPER ALLOYS
DATA
DEPOSITION
ELEMENTS
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
JOINTS
METALS
NICKEL BASE ALLOYS
NUMERICAL DATA
SURFACE COATING
TRANSITION ELEMENTS
360105* - Metals & Alloys- Corrosion & Erosion