Natalia S. Zadorozne, Martín A. Rodríguez
Ni-Cr-Mo alloys offer an outstanding corrosion resistance in a variety of highly-corrosive environments. This versatility is due to the beneficial effects of Cr and Mo in oxidizing and non-oxidizing conditions, respectively. Alloy 22 (Ni-22%Cr-13%Mo-3%W) is a well-known member of this family, while alloys Ni21Cr17Mo and Ni15Cr22Mo have been introduced recently. The aim of the present work was to compare the corrosion rate and the crevice corrosion susceptibility of Ni-Cr-Mo alloys in different metallurgical conditions when exposed to chloride solutions at 90ºC. Aging of Ni-Cr-Mo alloys leads to different microstructure changes depending on the temperature range. All the tested alloys showed similar corrosion rates in 1M NaCl. In 1M HCl solution, Alloy Ni15Cr22Mo had the best performance, with the corrosion rate in 1M HCl and the crevice corrosion resistance in 1M NaCl being determined by their Mo content. As the Mo content increased, the corrosion rate decreased, and the resistance to crevice corrosion increased.
@article{62867540-b9de-4f77-a9ef-14c31a535721,
title={CORROSION RESISTANCE OF Ni Cr Mo AND Ni},
author={Natalia S. Zadorozne and Martín A. Rodríguez},
year={2026},
language={en}
}TY - JOUR TI - CORROSION RESISTANCE OF Ni Cr Mo AND Ni AU - Natalia S. Zadorozne AU - Martín A. Rodríguez PY - 2026 LA - en ER -
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