Technology
Assessment & Research (TA&R) Program
| Project
Number |
70 |
| Date of Summary |
March 31, 1987 |
| Subject |
Trace Elements for Detecting
Cracking in Weldments |
| Performing Activity |
Colorado School of Mines |
| Principal Investigator |
Dr. Jerald E. Jones |
| Contracting Agency |
National Bureau of Standards |
| Estimated Completion |
Complete |
| Description |
The objective was to assess the
possible use of tracer materials in welding consumables for detection of cracking in
offshore structures. This trace material would be used only in certain interior beads of
multi-pass weldments, thus would only be released into the surroundings if a crack or
corrosion damage had progressed a sufficient distance into the material. Periodic scanning
of the area adjacent to the defect would detect the presence of the trace material and
signal the presence of a crack or corrosion of sufficient magnitude to be a problem. |
| Progress |
Complete |
| Reports |
AA (9 pages)
 |
Jones, J. E., Progress Statement,
Use of Radioactive Tracers to Detect Cracking in Undersea Pipeline Welds, Colorado School
of Mines, Golden, Colorado, March 1984. |
| AB (6 pages)
|
Jones, J. E., Natalie, C. A., Use
of Radioactive Tracers to Detect Stress-Corrosion Cracking in Offshore Pipeline and
Structural Welds, Quarterly Report April 8, 1984-July 8, 1984, Colorado School of Mines,
Golden, Colorado, July 18, 1984. |
| AC (3 pages)
|
Jones, J. E., Natalie, C. A., Use
of Radioactive Trace Elements in Welding Consumables for Detection of Cracking and
Corrosion in Offshore Structures and Pipelines, Quarterly Report, Colorado School of
Mines, Golden, Colorado, December 1984. |
| AD (4 pages)
|
Burns, M. G., Jones, J. E.,
Natalie, C. A., Use of Radioactive Tracers to Detect Stress Corrosion Cracking in Offshore
Structural Welds, Progress Statement, Colorado School of Mines, Golden, Colorado, July
1985. |
| AE (65 pages)
|
Burns, M. G., Use of Radioactive
Tracers to Detect Cracking in Weld Metal of Steel Structural Welds in Seawater, Master of
Science Degree, Center for Welding Research, Colorado School of Mines, Golden, Colorado,
June 1986. |
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