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99314 DEALLOYING OF CUPRONICKELS IN STAGNANT SEAWATER

Picture for 99314 DEALLOYING OF CUPRONICKELS IN STAGNANT
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Product Number: 51300-99314-SG
ISBN: 99314 1999 CP
Author: D.R. Lenard, J.R. Martin and R.H. Heidersbach
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This report discusses the dealloying (denickelification) of 70-30 cupronickel (UNS C 71500) heat exchanger tubing in stagnant seawater. Heat exchanger tubing from a naval vessel exposed to stagnant seawater was examined. The results include metallographic, scanning electron microscope, and X-ray spectrographic analyses supporting the conclusion that the dealloying occurred by a dissolution followed by redeposition of copper process. Keywords: cupronickel, dealloying, denickelification, corrosion, marine corrosion, saltwater corrosion, heat exchanger, scanning electron microscope (SEM)
This report discusses the dealloying (denickelification) of 70-30 cupronickel (UNS C 71500) heat exchanger tubing in stagnant seawater. Heat exchanger tubing from a naval vessel exposed to stagnant seawater was examined. The results include metallographic, scanning electron microscope, and X-ray spectrographic analyses supporting the conclusion that the dealloying occurred by a dissolution followed by redeposition of copper process. Keywords: cupronickel, dealloying, denickelification, corrosion, marine corrosion, saltwater corrosion, heat exchanger, scanning electron microscope (SEM)
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