Corrosion resistance improvement of multi-principal element alloy by tailored structure with heterogeneous grains

Xinyi Liu; Wanpeng Li; Wenyu Chen; Tzu-Hsiu Chou; Chenchong Wang; Jianmin Ren; Xu Wang; Jacob C. Huang; Ming Wu

doi:10.1016/j.jmrt.2023.02.129

Corrosion resistance improvement of multi-principal element alloy by tailored structure with heterogeneous grains

Xinyi Liu (Co-first Author), Wanpeng Li (Co-first Author), Wenyu Chen, Tzu-Hsiu Chou, Chenchong Wang, Jianmin Ren, Xu Wang^*, Jacob C. Huang^*, Ming Wu

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

5 Citations (Scopus)

53 Downloads (CityUHK Scholars)

Abstract

The Co₄₀Cr₂₀Ni₃₀Al₅Ti₅ multi-principal element alloy (MPEA) with heterogeneous grain structure (HGS) and nano L1₂ precipitates is successfully designed by cold rolling and proper heat treatment. The HGS alloy exhibits excellent corrosion resistance and passivation performance, originated from high-density grain boundaries in fine grains and abundant defects in deformed grains, which encourages surface to form a thicker and more efficient passive layer to inhibit the initial pitting corrosion. This finding indicates that the developed MPEA with HGS can possess an excellent combination of corrosion resistance and mechanical properties, providing highly positive factors for future applications. © 2023 The Author(s).

Original language	English
Pages (from-to)	5301-5309
Number of pages	9
Journal	Journal of Materials Research and Technology
Volume	23
Online published	24 Feb 2023
DOIs	https://doi.org/10.1016/j.jmrt.2023.02.129
Publication status	Published - Mar 2023

Research Keywords

Corrosion
Grain boundary
Heterogeneous grain structure
Multi-principal element alloy

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@article{b83cfe5f94cb406e9bbd91056aabb63b,

title = "Corrosion resistance improvement of multi-principal element alloy by tailored structure with heterogeneous grains",

abstract = "The Co40Cr20Ni30Al5Ti5 multi-principal element alloy (MPEA) with heterogeneous grain structure (HGS) and nano L12 precipitates is successfully designed by cold rolling and proper heat treatment. The HGS alloy exhibits excellent corrosion resistance and passivation performance, originated from high-density grain boundaries in fine grains and abundant defects in deformed grains, which encourages surface to form a thicker and more efficient passive layer to inhibit the initial pitting corrosion. This finding indicates that the developed MPEA with HGS can possess an excellent combination of corrosion resistance and mechanical properties, providing highly positive factors for future applications. {\textcopyright} 2023 The Author(s).",

keywords = "Corrosion, Grain boundary, Heterogeneous grain structure, Multi-principal element alloy",

author = "Xinyi Liu and Wanpeng Li and Wenyu Chen and Tzu-Hsiu Chou and Chenchong Wang and Jianmin Ren and Xu Wang and Huang, {Jacob C.} and Ming Wu",

year = "2023",

month = mar,

doi = "10.1016/j.jmrt.2023.02.129",

language = "English",

volume = "23",

pages = "5301--5309",

journal = "Journal of Materials Research and Technology",

issn = "2238-7854",

publisher = "Elsevier Editora Ltda",

}

Corrosion resistance improvement of multi-principal element alloy by tailored structure with heterogeneous grains. / Liu, Xinyi (Co-first Author); Li, Wanpeng (Co-first Author); Chen, Wenyu et al.
In: Journal of Materials Research and Technology, Vol. 23, 03.2023, p. 5301-5309.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Corrosion resistance improvement of multi-principal element alloy by tailored structure with heterogeneous grains

AU - Liu, Xinyi

AU - Li, Wanpeng

AU - Chen, Wenyu

AU - Chou, Tzu-Hsiu

AU - Wang, Chenchong

AU - Ren, Jianmin

AU - Wang, Xu

AU - Huang, Jacob C.

AU - Wu, Ming

PY - 2023/3

Y1 - 2023/3

N2 - The Co40Cr20Ni30Al5Ti5 multi-principal element alloy (MPEA) with heterogeneous grain structure (HGS) and nano L12 precipitates is successfully designed by cold rolling and proper heat treatment. The HGS alloy exhibits excellent corrosion resistance and passivation performance, originated from high-density grain boundaries in fine grains and abundant defects in deformed grains, which encourages surface to form a thicker and more efficient passive layer to inhibit the initial pitting corrosion. This finding indicates that the developed MPEA with HGS can possess an excellent combination of corrosion resistance and mechanical properties, providing highly positive factors for future applications. © 2023 The Author(s).

AB - The Co40Cr20Ni30Al5Ti5 multi-principal element alloy (MPEA) with heterogeneous grain structure (HGS) and nano L12 precipitates is successfully designed by cold rolling and proper heat treatment. The HGS alloy exhibits excellent corrosion resistance and passivation performance, originated from high-density grain boundaries in fine grains and abundant defects in deformed grains, which encourages surface to form a thicker and more efficient passive layer to inhibit the initial pitting corrosion. This finding indicates that the developed MPEA with HGS can possess an excellent combination of corrosion resistance and mechanical properties, providing highly positive factors for future applications. © 2023 The Author(s).

KW - Corrosion

KW - Grain boundary

KW - Heterogeneous grain structure

KW - Multi-principal element alloy

UR - http://www.scopus.com/inward/record.url?scp=85149441893&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85149441893&origin=recordpage

U2 - 10.1016/j.jmrt.2023.02.129

DO - 10.1016/j.jmrt.2023.02.129

M3 - RGC 21 - Publication in refereed journal

SN - 2238-7854

VL - 23

SP - 5301

EP - 5309

JO - Journal of Materials Research and Technology

JF - Journal of Materials Research and Technology

ER -

Corrosion resistance improvement of multi-principal element alloy by tailored structure with heterogeneous grains

Abstract

Research Keywords

Publisher's Copyright Statement

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