Corrosion resistance enhancement of CoCrFeMnNi high-entropy alloy fabricated by additive manufacturing

By Zhenlin Xu, Hui Zhang, Xiaojie Du, Yizhu He, Hong Luo, G. Song, L. Mao, T. Zhou, Liang Wang. 2020

267 citations recorded by the source corpus.

Abstract A CoCrFeMnNi high-entropy alloy (HEA) was fabricated by additive manufacturing using selective laser melting (SLM). The corrosion behavior of the SLM-produced and as-cast CoCrFeMnNi HEA in 3.5 wt.% NaCl solution was comparatively analyzed. Compared to the as-cast HEA, more uniform composition and finer grains were observed in the SLMed HEA. The passive film formed on the SLMed HEA had a more stable and stronger protective property. The corrosion current density of the SLMed CoCrFeMnNi HEA dropped by 58 % compared to that of the as-cast HEA, indicating that the SLMed HEA had better corrosion resistance than that of the as-cast alloy.

Subfields: Aerospace Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/504942f9ff19aa462ac76bfbef8e4c24f2aba00e

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In Aerospace Engineering

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Citations in the corpus

• Review of Powder Bed Fusion Additive Manufacturing for Metals (2021, background): “Co-Cr-Fe-Mn-Ni HEA [361] Laser 83 Columnar/Cellular FCC”