Effect of interstitial carbon and nitrogen on corrosion of FeCoCrNi multi-principal element alloys made by selective laser melting

Wenyu Chen; Rui Zhou; Wanpeng Li; Yen-Hsiang Chen; Tzu-Hsiu Chou; Xu Wang; Yong Liu; Yuntian Zhu; J.C. Huang

doi:10.1016/j.jmst.2022.10.027

Effect of interstitial carbon and nitrogen on corrosion of FeCoCrNi multi-principal element alloys made by selective laser melting

Wenyu Chen (Co-first Author)
, Rui Zhou (Co-first Author)
, Wanpeng Li
, Yen-Hsiang Chen
, Tzu-Hsiu Chou
, Xu Wang
, Yong Liu
, Yuntian Zhu^*
, J.C. Huang^*

^*Corresponding author for this work

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

30 Citations (Scopus)

21 Downloads (CityUHK Scholars)

Abstract

The corrosion behaviors of selective laser melted (SLMed) FeCoCrNi multi-principal element alloys (MPEAs) with carbon or nitrogen addition in 0.5 M H₂SO₄ solution were investigated. Both C and N addition refined the grains and introduced a heterogeneous structure in SLMed FeCoCrNi MPEA, but they had opposite effects on the corrosion behavior. The doped carbon participated as nano-sized carbides in SLMed MPEA, and localized galvanic corrosion occurred, degrading the corrosion resistance. The doped nitrogen was gathered with chromium and formed CrN chemical clusters in SLMed MPEA, and a protective passive film with a higher Cr₂O₃/Cr(OH)₃ ratio formed, which improved corrosion resistance.

Original language	English
Pages (from-to)	52-63
Number of pages	12
Journal	Journal of Materials Science and Technology
Volume	148
Online published	30 Nov 2022
DOIs	https://doi.org/10.1016/j.jmst.2022.10.027
Publication status	Published - 10 Jun 2023

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

Research Keywords

Selective laser melting
Interstitial element
Multi-principal element alloys
Acid corrosion

Publisher's Copyright Statement

COPYRIGHT TERMS OF DEPOSITED POSTPRINT FILE: © 2023. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/.

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10.1016/j.jmst.2022.10.027

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ResInst: Hong Kong Institute for Advanced Study
CHENG, S. H. (Principal Investigator / Project Coordinator)
10/08/15 → …
Project: Research

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@article{45efabbbcaf641128d57e4aac834b9d0,

title = "Effect of interstitial carbon and nitrogen on corrosion of FeCoCrNi multi-principal element alloys made by selective laser melting",

abstract = "The corrosion behaviors of selective laser melted (SLMed) FeCoCrNi multi-principal element alloys (MPEAs) with carbon or nitrogen addition in 0.5 M H2SO4 solution were investigated. Both C and N addition refined the grains and introduced a heterogeneous structure in SLMed FeCoCrNi MPEA, but they had opposite effects on the corrosion behavior. The doped carbon participated as nano-sized carbides in SLMed MPEA, and localized galvanic corrosion occurred, degrading the corrosion resistance. The doped nitrogen was gathered with chromium and formed CrN chemical clusters in SLMed MPEA, and a protective passive film with a higher Cr2O3/Cr(OH)3 ratio formed, which improved corrosion resistance.",

keywords = "Selective laser melting, Interstitial element, Multi-principal element alloys, Acid corrosion",

author = "Wenyu Chen and Rui Zhou and Wanpeng Li and Yen-Hsiang Chen and Tzu-Hsiu Chou and Xu Wang and Yong Liu and Yuntian Zhu and J.C. Huang",

year = "2023",

month = jun,

day = "10",

doi = "10.1016/j.jmst.2022.10.027",

language = "English",

volume = "148",

pages = "52--63",

journal = "Journal of Materials Science and Technology",

issn = "1005-0302",

publisher = "Elsevier Ltd.",

}

Effect of interstitial carbon and nitrogen on corrosion of FeCoCrNi multi-principal element alloys made by selective laser melting. / Chen, Wenyu (Co-first Author); Zhou, Rui (Co-first Author); Li, Wanpeng et al.
In: Journal of Materials Science and Technology, Vol. 148, 10.06.2023, p. 52-63.

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

TY - JOUR

T1 - Effect of interstitial carbon and nitrogen on corrosion of FeCoCrNi multi-principal element alloys made by selective laser melting

AU - Chen, Wenyu

AU - Zhou, Rui

AU - Li, Wanpeng

AU - Chen, Yen-Hsiang

AU - Chou, Tzu-Hsiu

AU - Wang, Xu

AU - Liu, Yong

AU - Zhu, Yuntian

AU - Huang, J.C.

PY - 2023/6/10

Y1 - 2023/6/10

N2 - The corrosion behaviors of selective laser melted (SLMed) FeCoCrNi multi-principal element alloys (MPEAs) with carbon or nitrogen addition in 0.5 M H2SO4 solution were investigated. Both C and N addition refined the grains and introduced a heterogeneous structure in SLMed FeCoCrNi MPEA, but they had opposite effects on the corrosion behavior. The doped carbon participated as nano-sized carbides in SLMed MPEA, and localized galvanic corrosion occurred, degrading the corrosion resistance. The doped nitrogen was gathered with chromium and formed CrN chemical clusters in SLMed MPEA, and a protective passive film with a higher Cr2O3/Cr(OH)3 ratio formed, which improved corrosion resistance.

AB - The corrosion behaviors of selective laser melted (SLMed) FeCoCrNi multi-principal element alloys (MPEAs) with carbon or nitrogen addition in 0.5 M H2SO4 solution were investigated. Both C and N addition refined the grains and introduced a heterogeneous structure in SLMed FeCoCrNi MPEA, but they had opposite effects on the corrosion behavior. The doped carbon participated as nano-sized carbides in SLMed MPEA, and localized galvanic corrosion occurred, degrading the corrosion resistance. The doped nitrogen was gathered with chromium and formed CrN chemical clusters in SLMed MPEA, and a protective passive film with a higher Cr2O3/Cr(OH)3 ratio formed, which improved corrosion resistance.

KW - Selective laser melting

KW - Interstitial element

KW - Multi-principal element alloys

KW - Acid corrosion

U2 - 10.1016/j.jmst.2022.10.027

DO - 10.1016/j.jmst.2022.10.027

M3 - RGC 21 - Publication in refereed journal

SN - 1005-0302

VL - 148

SP - 52

EP - 63

JO - Journal of Materials Science and Technology

JF - Journal of Materials Science and Technology

ER -

Effect of interstitial carbon and nitrogen on corrosion of FeCoCrNi multi-principal element alloys made by selective laser melting

Abstract

UN SDGs

Research Keywords

Publisher's Copyright Statement

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ResInst: Hong Kong Institute for Advanced Study

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