Passive behavior of laser directed energy deposited Inconel 718 after homogenization and aging heat treatment

Yufeng Zhang; Jun Yu; Xin Lin; Pengfei Guo; Xiaobin Yu; Shaoli Zhang; Jianrui Liu; Weidong Huang

doi:10.1016/j.corsci.2022.110439

Passive behavior of laser directed energy deposited Inconel 718 after homogenization and aging heat treatment

Yufeng Zhang, Jun Yu, Xin Lin, Pengfei Guo, Xiaobin Yu, Shaoli Zhang, Jianrui Liu, Weidong Huang

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Microstructure and passive behavior of laser directed energy deposited Inconel 718 after homogenization and aging heat treatment were investigated. The deposit microstructure mainly consists of γ phase and (γ + γ″) phases after homogenization and homogenization + aging treatment, respectively. Both heat-treated samples present a similar trend on passive behavior within the potential ranging. However, compared to homogenization treatment, the passive film of the deposit exhibits a lower electrochemical stability after homogenization + aging treatment, which is caused by the accelerated ions transportation through the interface between γ″ phase and passive film.

Original language	English
Article number	110439
Journal	Corrosion Science
Volume	205
DOIs	https://doi.org/10.1016/j.corsci.2022.110439
State	Published - 15 Aug 2022

Keywords

Additive manufacturing
Inconel 718
Ions transportation
Laser directed energy deposition
Passive film

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10.1016/j.corsci.2022.110439

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title = "Passive behavior of laser directed energy deposited Inconel 718 after homogenization and aging heat treatment",

abstract = "Microstructure and passive behavior of laser directed energy deposited Inconel 718 after homogenization and aging heat treatment were investigated. The deposit microstructure mainly consists of γ phase and (γ + γ″) phases after homogenization and homogenization + aging treatment, respectively. Both heat-treated samples present a similar trend on passive behavior within the potential ranging. However, compared to homogenization treatment, the passive film of the deposit exhibits a lower electrochemical stability after homogenization + aging treatment, which is caused by the accelerated ions transportation through the interface between γ″ phase and passive film.",

keywords = "Additive manufacturing, Inconel 718, Ions transportation, Laser directed energy deposition, Passive film",

author = "Yufeng Zhang and Jun Yu and Xin Lin and Pengfei Guo and Xiaobin Yu and Shaoli Zhang and Jianrui Liu and Weidong Huang",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2022",

month = aug,

day = "15",

doi = "10.1016/j.corsci.2022.110439",

language = "英语",

volume = "205",

journal = "Corrosion Science",

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T1 - Passive behavior of laser directed energy deposited Inconel 718 after homogenization and aging heat treatment

AU - Zhang, Yufeng

AU - Yu, Jun

AU - Lin, Xin

AU - Guo, Pengfei

AU - Yu, Xiaobin

AU - Zhang, Shaoli

AU - Liu, Jianrui

AU - Huang, Weidong

PY - 2022/8/15

Y1 - 2022/8/15

N2 - Microstructure and passive behavior of laser directed energy deposited Inconel 718 after homogenization and aging heat treatment were investigated. The deposit microstructure mainly consists of γ phase and (γ + γ″) phases after homogenization and homogenization + aging treatment, respectively. Both heat-treated samples present a similar trend on passive behavior within the potential ranging. However, compared to homogenization treatment, the passive film of the deposit exhibits a lower electrochemical stability after homogenization + aging treatment, which is caused by the accelerated ions transportation through the interface between γ″ phase and passive film.

AB - Microstructure and passive behavior of laser directed energy deposited Inconel 718 after homogenization and aging heat treatment were investigated. The deposit microstructure mainly consists of γ phase and (γ + γ″) phases after homogenization and homogenization + aging treatment, respectively. Both heat-treated samples present a similar trend on passive behavior within the potential ranging. However, compared to homogenization treatment, the passive film of the deposit exhibits a lower electrochemical stability after homogenization + aging treatment, which is caused by the accelerated ions transportation through the interface between γ″ phase and passive film.

KW - Additive manufacturing

KW - Inconel 718

KW - Ions transportation

KW - Laser directed energy deposition

KW - Passive film

UR - http://www.scopus.com/inward/record.url?scp=85132753924&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2022.110439

DO - 10.1016/j.corsci.2022.110439

M3 - 文章

AN - SCOPUS:85132753924

SN - 0010-938X

VL - 205

JO - Corrosion Science

JF - Corrosion Science

M1 - 110439

ER -

Passive behavior of laser directed energy deposited Inconel 718 after homogenization and aging heat treatment

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Keywords

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