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Influence of Nano Chromium Addition on the Corrosion and Erosion–corrosion Behavior of Cupronickel 70/30 Alloy in Seawater by Ayad Mohammed Nattah; Asia Mishaal Salim; Nawal Mohammed Dawood is a Engineering article available to read on EtoBox.

What is Influence of Nano Chromium Addition on the Corrosion and Erosion–corrosion Behavior of Cupronickel 70/30 Alloy in Seawater about?

## Abstract Cupronickel alloys have found widespread use in various applications such as heat exchangers, refrigeration systems, equipment, pumps, and pipes. However, the inherent structure of cupronickel alone may not be able to withstand certain aggressive environments effectively. To address this issue, the mechanical properties and corrosion resistance of cupronickel alloys can be enhanced by carefully selecting the appropriate alloying compositions. The addition of nano chromium (20 nm) has been proposed as a means of designing cupronickel alloys with improved performance. In the present study, corrosion and erosion–corrosion behaviors of cupronickel 70/30 alloys produced by the casting method without and with three different additions of nano Cr (1, 1.2, and 1.5 wt%) were investigated. The prepared specimens were subjected to electrochemical tests in 3.5 wt% sodium chloride solutions to evaluate their corrosion behavior. Additionally, an erosion–corrosion test was conducted at an impact angle of 90°, using a slurry solution containing 1 wt% SiO~2~ sand in 3.5 wt% NaCl solution as the erodent. The specimens were comprehensively characterized using scanning electron microscopy,

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Author

Ayad Mohammed Nattah; Asia Mishaal Salim; Nawal Mohammed Dawood

Publisher

Walter de Gruyter GmbH

Published

2023

Language

EN

Field

Engineering (Physical Sciences)