2005•Materials Science and TechnologyRequires access
Corrosion behavior of CuCr alloy coated with NaCl deposit
Qiurong Li
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Abstract
In order to enrich study of high temperature corrosion of CuCr alloy and extend Cu-Cr alloys' application , corrosion behavior of CuCr alloy coated with NaCl deposit at 700 - 900℃ was studied by means of metalloscope, XRD, SEM/EDX and thermograimetric, and the effect of deformation on the corrosion of the CuCr alloy was discussed, and acceleration mechanisms of NaCl on the corrosion of CuCr alloy were also discussed. The results indicated that the corrosion of CuCr alloy coated with NaCl deposit was severe, the corrosion production was loose and easy to scale off; Cr phase was easier to be eroded than Cu phase, and chromium depletion was developed in the matrix of alloy beneath the corrosion region; deformation can accelerate the oxidizing corrosion of CuCr alloy.