Superior anti-corrosion properties of nanostructured crystalline-amorphous compositionally complex alloy

Zhenguang Gao; Wenqing Yang; Jiacheng Zhang; Xu Hou; Xuan Huang; K. C. Chan; Di Wang; Xu Sheng Yang

doi:10.1080/21663831.2026.2670073

Superior anti-corrosion properties of nanostructured crystalline-amorphous compositionally complex alloy

Zhenguang Gao
, Wenqing Yang
, Jiacheng Zhang
, Xu Hou
, Xuan Huang
, K. C. Chan
, Di Wang
, Xu Sheng Yang

Research output: Journal article publication › Journal article › Academic research › peer-review

Abstract

A nanostructured crystalline-amorphous Fe₄₅Cr₁₀Co₁₀Mn₃₅ compositionally complex alloy (CCA) was fabricated via laser surface remelting (LSR) technique. Featuring nanograins (NGs) embedded in Cr-segregated amorphous boundaries, it shows a corrosion current density of 1.42 µA/cm² (3.5 wt.% NaCl), ∼4.3 times lower than the coarse-grained counterpart. Enhanced corrosion resistance arises from synergistic effect of NGs and Cr-enriched amorphous boundaries, which facilitates the formation of more compact passive films. Density functional theory (DFT) calculations confirm that Cr segregation suppresses nano-galvanic coupling by adjusting the work function. The study demonstrates a promising strategy for enhancing corrosion resistance in CCAs through interface engineering.

Original language	English
Pages (from-to)	838-848
Number of pages	11
Journal	Materials Research Letters
Volume	14
Issue number	7
DOIs	https://doi.org/10.1080/21663831.2026.2670073
Publication status	Published - Jul 2026

Keywords

Compositionally complex alloys
corrosion resistance
crystalline-amorphous nanostructure
density functional theory
laser surface remelting

ASJC Scopus subject areas

General Materials Science
Metals and Alloys

More information

10.1080/21663831.2026.2670073

Cite this

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title = "Superior anti-corrosion properties of nanostructured crystalline-amorphous compositionally complex alloy",

abstract = "A nanostructured crystalline-amorphous Fe45Cr10Co10Mn35 compositionally complex alloy (CCA) was fabricated via laser surface remelting (LSR) technique. Featuring nanograins (NGs) embedded in Cr-segregated amorphous boundaries, it shows a corrosion current density of 1.42 µA/cm² (3.5 wt.\% NaCl), ∼4.3 times lower than the coarse-grained counterpart. Enhanced corrosion resistance arises from synergistic effect of NGs and Cr-enriched amorphous boundaries, which facilitates the formation of more compact passive films. Density functional theory (DFT) calculations confirm that Cr segregation suppresses nano-galvanic coupling by adjusting the work function. The study demonstrates a promising strategy for enhancing corrosion resistance in CCAs through interface engineering.",

keywords = "Compositionally complex alloys, corrosion resistance, crystalline-amorphous nanostructure, density functional theory, laser surface remelting",

author = "Zhenguang Gao and Wenqing Yang and Jiacheng Zhang and Xu Hou and Xuan Huang and Chan, \{K. C.\} and Di Wang and Yang, \{Xu Sheng\}",

note = "Publisher Copyright: {\textcopyright} 2026 The Author(s). Published by Informa UK Limited, trading as Taylor \& Francis Group.",

year = "2026",

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doi = "10.1080/21663831.2026.2670073",

language = "English",

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TY - JOUR

T1 - Superior anti-corrosion properties of nanostructured crystalline-amorphous compositionally complex alloy

AU - Gao, Zhenguang

AU - Yang, Wenqing

AU - Zhang, Jiacheng

AU - Hou, Xu

AU - Huang, Xuan

AU - Chan, K. C.

AU - Wang, Di

AU - Yang, Xu Sheng

PY - 2026/7

Y1 - 2026/7

N2 - A nanostructured crystalline-amorphous Fe45Cr10Co10Mn35 compositionally complex alloy (CCA) was fabricated via laser surface remelting (LSR) technique. Featuring nanograins (NGs) embedded in Cr-segregated amorphous boundaries, it shows a corrosion current density of 1.42 µA/cm² (3.5 wt.% NaCl), ∼4.3 times lower than the coarse-grained counterpart. Enhanced corrosion resistance arises from synergistic effect of NGs and Cr-enriched amorphous boundaries, which facilitates the formation of more compact passive films. Density functional theory (DFT) calculations confirm that Cr segregation suppresses nano-galvanic coupling by adjusting the work function. The study demonstrates a promising strategy for enhancing corrosion resistance in CCAs through interface engineering.

AB - A nanostructured crystalline-amorphous Fe45Cr10Co10Mn35 compositionally complex alloy (CCA) was fabricated via laser surface remelting (LSR) technique. Featuring nanograins (NGs) embedded in Cr-segregated amorphous boundaries, it shows a corrosion current density of 1.42 µA/cm² (3.5 wt.% NaCl), ∼4.3 times lower than the coarse-grained counterpart. Enhanced corrosion resistance arises from synergistic effect of NGs and Cr-enriched amorphous boundaries, which facilitates the formation of more compact passive films. Density functional theory (DFT) calculations confirm that Cr segregation suppresses nano-galvanic coupling by adjusting the work function. The study demonstrates a promising strategy for enhancing corrosion resistance in CCAs through interface engineering.

KW - Compositionally complex alloys

KW - corrosion resistance

KW - crystalline-amorphous nanostructure

KW - density functional theory

KW - laser surface remelting

UR - https://www.scopus.com/pages/publications/105038605497

U2 - 10.1080/21663831.2026.2670073

DO - 10.1080/21663831.2026.2670073

M3 - Journal article

AN - SCOPUS:105038605497

SN - 2166-3831

VL - 14

SP - 838

EP - 848

JO - Materials Research Letters

JF - Materials Research Letters

IS - 7

ER -

Superior anti-corrosion properties of nanostructured crystalline-amorphous compositionally complex alloy

Abstract

Keywords

ASJC Scopus subject areas

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