Enhanced oxidation resistance of additively manufactured Inconel 718 superalloy by surface mechanical attrition treatment

Chuan Guo; Jingchen Wang; Hongxing Lu; Yanmin Wang; Jianing Bai; Gan Li; Yu Yin; Lu Yao; Qiang Zhu; Jian Lu

doi:10.1016/j.corsci.2025.112719

Enhanced oxidation resistance of additively manufactured Inconel 718 superalloy by surface mechanical attrition treatment

Chuan Guo (Co-first Author), Jingchen Wang (Co-first Author), Hongxing Lu, Yanmin Wang, Jianing Bai, Gan Li, Yu Yin, Lu Yao, Qiang Zhu^*, Jian Lu^*

^*Corresponding author for this work

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

1 Citation (Scopus)

17 Downloads (CityUHK Scholars)

Abstract

This study investigated the effects of surface mechanical attrition treatment (SMAT) on the antioxidation performance of additively manufactured Inconel 718 parts. The results show that SMAT generated a nanograin layer near the part surface with high densities of low-angle grain boundaries, plastic strain and lattice distortion. Oxidation resistance was improved owing to that a continuous oxide scale was quickly formed to protect the underlying materials at the early stage of oxidation by the nanosized microstructure. Moreover, adhesion between the oxide scale and the parent alloy was enhanced because of a high level of compressive residual stress induced by SMAT. © 2025 The Authors

Original language	English
Article number	112719
Journal	Corrosion Science
Volume	246
Online published	17 Jan 2025
DOIs	https://doi.org/10.1016/j.corsci.2025.112719
Publication status	Published - 15 Apr 2025

Funding

This work was supported by Guangdong Province Science and Technology Plan Project (2023B1212120008), the Research Grants Council of Hong Kong (grant No. AoE/M-402/20), National Natural Science Foundation of China/Hong Kong Research Grants Council Joint Research Scheme (N_CityU151/23), the National Natural Science Foundation of China (52250710160), the Shenzhen Science and Technology Innovation Committee (JCYJ20210324104610029 and JCYJ20220818100613028), the High level of special funds from Southern University of Science and Technology (G03034K003).

Research Keywords

Additive manufacturing
Oxidation behavior
Superalloy
Surface mechanical attrition treatment

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This full text is made available under CC-BY-NC-ND 4.0. https://creativecommons.org/licenses/by-nc-nd/4.0/

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

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10.1016/j.corsci.2025.112719

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@article{a8545c8b4d364373a8a8c2ab706d9d02,

title = "Enhanced oxidation resistance of additively manufactured Inconel 718 superalloy by surface mechanical attrition treatment",

abstract = "This study investigated the effects of surface mechanical attrition treatment (SMAT) on the antioxidation performance of additively manufactured Inconel 718 parts. The results show that SMAT generated a nanograin layer near the part surface with high densities of low-angle grain boundaries, plastic strain and lattice distortion. Oxidation resistance was improved owing to that a continuous oxide scale was quickly formed to protect the underlying materials at the early stage of oxidation by the nanosized microstructure. Moreover, adhesion between the oxide scale and the parent alloy was enhanced because of a high level of compressive residual stress induced by SMAT. {\textcopyright} 2025 The Authors",

keywords = "Additive manufacturing, Oxidation behavior, Superalloy, Surface mechanical attrition treatment",

author = "Chuan Guo and Jingchen Wang and Hongxing Lu and Yanmin Wang and Jianing Bai and Gan Li and Yu Yin and Lu Yao and Qiang Zhu and Jian Lu",

year = "2025",

month = apr,

day = "15",

doi = "10.1016/j.corsci.2025.112719",

language = "English",

volume = "246",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd.",

}

Enhanced oxidation resistance of additively manufactured Inconel 718 superalloy by surface mechanical attrition treatment. / Guo, Chuan (Co-first Author); Wang, Jingchen (Co-first Author); Lu, Hongxing et al.
In: Corrosion Science, Vol. 246, 112719, 15.04.2025.

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

TY - JOUR

T1 - Enhanced oxidation resistance of additively manufactured Inconel 718 superalloy by surface mechanical attrition treatment

AU - Guo, Chuan

AU - Wang, Jingchen

AU - Lu, Hongxing

AU - Wang, Yanmin

AU - Bai, Jianing

AU - Li, Gan

AU - Yin, Yu

AU - Yao, Lu

AU - Zhu, Qiang

AU - Lu, Jian

PY - 2025/4/15

Y1 - 2025/4/15

N2 - This study investigated the effects of surface mechanical attrition treatment (SMAT) on the antioxidation performance of additively manufactured Inconel 718 parts. The results show that SMAT generated a nanograin layer near the part surface with high densities of low-angle grain boundaries, plastic strain and lattice distortion. Oxidation resistance was improved owing to that a continuous oxide scale was quickly formed to protect the underlying materials at the early stage of oxidation by the nanosized microstructure. Moreover, adhesion between the oxide scale and the parent alloy was enhanced because of a high level of compressive residual stress induced by SMAT. © 2025 The Authors

AB - This study investigated the effects of surface mechanical attrition treatment (SMAT) on the antioxidation performance of additively manufactured Inconel 718 parts. The results show that SMAT generated a nanograin layer near the part surface with high densities of low-angle grain boundaries, plastic strain and lattice distortion. Oxidation resistance was improved owing to that a continuous oxide scale was quickly formed to protect the underlying materials at the early stage of oxidation by the nanosized microstructure. Moreover, adhesion between the oxide scale and the parent alloy was enhanced because of a high level of compressive residual stress induced by SMAT. © 2025 The Authors

KW - Additive manufacturing

KW - Oxidation behavior

KW - Superalloy

KW - Surface mechanical attrition treatment

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85215432772&origin=recordpage

U2 - 10.1016/j.corsci.2025.112719

DO - 10.1016/j.corsci.2025.112719

M3 - RGC 21 - Publication in refereed journal

SN - 0010-938X

VL - 246

JO - Corrosion Science

JF - Corrosion Science

M1 - 112719

ER -

Enhanced oxidation resistance of additively manufactured Inconel 718 superalloy by surface mechanical attrition treatment

Abstract

Funding

Research Keywords

Publisher's Copyright Statement

UN SDGs

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NSFC: Bulk Complex Concentrated Alloys Based on Grain Boundary Complexion Engineering and Study of Their Toughening Mechanisms

AoE(UGC)-ExtU-Lead: Aging, Skeletal Degeneration and Regeneration

Cite this

Enhanced oxidation resistance of additively manufactured Inconel 718 superalloy by surface mechanical attrition treatment

Abstract

Funding

Research Keywords

Publisher's Copyright Statement

UN SDGs

Access Output

Other Access Options

Permanent Link

Other Files and Links

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Projects

NSFC: Bulk Complex Concentrated Alloys Based on Grain Boundary Complexion Engineering and Study of Their Toughening Mechanisms

AoE(UGC)-ExtU-Lead: Aging, Skeletal Degeneration and Regeneration

Cite this