Metallic segregation was documented in butt-welded CDA(1) 706 (UNS(2) C70600) copper-nickel piping. The weld bead, melt zone, and loosely adherent surface material were enriched in copper. Nickel-rich areas were identified under loosely adherent surface material.

Subject
Pipe surfaces, Energy dispersive X-ray spectroscopy, Materials, Piping, Composition, Metal surfaces, Microstructure, Beads, Carbon, Copper, Nickel, Burnishing, Samples
Keywords:
butt weld, copper, nickel, microsegregation surface analyses
National Association of Corrosion Engineers
1991
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