Accession Number:

ADA600048

Title:

Ultrasonic Guided Wave Technology for Non-Invasive Assessment of Corrosion-Induced Damage in Piping for Pollution Prevention in DOD Fuel Storage Facilities

Descriptive Note:

Final rept. 1 Jan 2008-30 Sep 2011

Corporate Author:

NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD

Report Date:

2011-08-01

Pagination or Media Count:

74.0

Abstract:

This report summarizes the work performed in a two-phase ESTCP project to demonstrate the capabilities of commercially available ultrasonic guided wave technology for the detection, sizing, and growth monitoring of corrosion-induced defects in fuel piping. Corrosion-induced defects in long and inaccessible pipelines are a concern for the DOD because of the potential for leaks and oil spills on land and underwater. In Phase I, a pipeline was established in the facilities at the NSWCCD, incorporating welds, elbows, and hidden corrosion-induced defects to serve as a test bed for ultrasonic guided wave technology. In Phase II the technology was used to monitor a steel pipeline at the Naval Station, Norfolk, VA. using above and below ground transducers for a period of 20 months. Several locations suspected of having corrosion have not yet produced consistently increasing ultrasonic signals to warrant excavation and physical examination, an indirect indication of the efficacy of the cathodic protection system for the pipeline. It is recommended that monitoring be continued to further demonstrate this technology for future DOD and commercial use.

Subject Categories:

  • Properties of Metals and Alloys
  • Pumps, Filters, Pipes, Tubing, Fittings and Valves

Distribution Statement:

APPROVED FOR PUBLIC RELEASE