Corrosive-Wear of Buoy Chain
Abstract
Five alloy steel chains were exposed to a service environment as buoy chains to determine the best candidate to replace the 1022 steel currently used. The best combination of resistance to material loss, strength and pitting corrosion resistance was shown by the 4340 quenched and tempered steel. In the chafe section the 4340 steel displayed the best resistance to wear even though it was located in rocks and sand. The 1022 steel performed the best in terms of overall weight loss; however, the chain was positioned on a sandy location and showed greater wear in the chafe section. These results suggest that the 4340 steel may be an alternative to the 1022 steel in areas where the chain moorings experience rapid corrosive wear. However, the availability and weldability of the 4340 steel make it unsuitable as a buoy chain material at the present time.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1988
- Accession Number
- ADA201742
Entities
People
- Craig A. Kohler
- Richard R. Brown
Organizations
- United States Coast Guard Research & Development Center