Mechanical properties and corrosion resistance of electron beam offset welded Inconel 718 and 304 stainless steel joints

Junhong Zhao; Guoqing Chen; Xinyan Teng; Lamei Zhang; Chen Yang; Xuesong Leng

doi:10.1016/j.matlet.2025.138457

Mechanical properties and corrosion resistance of electron beam offset welded Inconel 718 and 304 stainless steel joints

Junhong Zhao
, Guoqing Chen^*
, Xinyan Teng
, Lamei Zhang
, Chen Yang
, Xuesong Leng

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology
Harbin Institute of Technology

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

1 Scopus citations

Abstract

To improve the corrosion resistance of the joints, electron beam offset welding of Inconel 718 and 304 stainless steel was conducted. As the electron beam shifted to 304 stainless steel from 0 mm to 0.6 mm, corrosion resistance was significantly improved. Relative reduction of precipitate phases contributed to the improvement in the corrosion resistance of the joint. Due to the weakening of the second-phase strengthening effect, mechanical properties were reduced in the joints. Comparatively, beam offset welded specimens exhibited inferior tensile strength than direct welded specimens, with a tensile strength reaching 95.8 % of the base metal.

Original language	English
Article number	138457
Journal	Materials Letters
Volume	391
DOIs	https://doi.org/10.1016/j.matlet.2025.138457
State	Published - 15 Jul 2025

Keywords

304 stainless steel
Corrosion Resistance
Electron beam welding
Inconel 718

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title = "Mechanical properties and corrosion resistance of electron beam offset welded Inconel 718 and 304 stainless steel joints",

abstract = "To improve the corrosion resistance of the joints, electron beam offset welding of Inconel 718 and 304 stainless steel was conducted. As the electron beam shifted to 304 stainless steel from 0 mm to 0.6 mm, corrosion resistance was significantly improved. Relative reduction of precipitate phases contributed to the improvement in the corrosion resistance of the joint. Due to the weakening of the second-phase strengthening effect, mechanical properties were reduced in the joints. Comparatively, beam offset welded specimens exhibited inferior tensile strength than direct welded specimens, with a tensile strength reaching 95.8 \% of the base metal.",

keywords = "304 stainless steel, Corrosion Resistance, Electron beam welding, Inconel 718",

author = "Junhong Zhao and Guoqing Chen and Xinyan Teng and Lamei Zhang and Chen Yang and Xuesong Leng",

note = "Publisher Copyright: {\textcopyright} 2025",

year = "2025",

month = jul,

day = "15",

doi = "10.1016/j.matlet.2025.138457",

language = "英语",

volume = "391",

journal = "Materials Letters",

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TY - JOUR

T1 - Mechanical properties and corrosion resistance of electron beam offset welded Inconel 718 and 304 stainless steel joints

AU - Zhao, Junhong

AU - Chen, Guoqing

AU - Teng, Xinyan

AU - Zhang, Lamei

AU - Yang, Chen

AU - Leng, Xuesong

PY - 2025/7/15

Y1 - 2025/7/15

N2 - To improve the corrosion resistance of the joints, electron beam offset welding of Inconel 718 and 304 stainless steel was conducted. As the electron beam shifted to 304 stainless steel from 0 mm to 0.6 mm, corrosion resistance was significantly improved. Relative reduction of precipitate phases contributed to the improvement in the corrosion resistance of the joint. Due to the weakening of the second-phase strengthening effect, mechanical properties were reduced in the joints. Comparatively, beam offset welded specimens exhibited inferior tensile strength than direct welded specimens, with a tensile strength reaching 95.8 % of the base metal.

AB - To improve the corrosion resistance of the joints, electron beam offset welding of Inconel 718 and 304 stainless steel was conducted. As the electron beam shifted to 304 stainless steel from 0 mm to 0.6 mm, corrosion resistance was significantly improved. Relative reduction of precipitate phases contributed to the improvement in the corrosion resistance of the joint. Due to the weakening of the second-phase strengthening effect, mechanical properties were reduced in the joints. Comparatively, beam offset welded specimens exhibited inferior tensile strength than direct welded specimens, with a tensile strength reaching 95.8 % of the base metal.

KW - 304 stainless steel

KW - Corrosion Resistance

KW - Electron beam welding

KW - Inconel 718

UR - https://www.scopus.com/pages/publications/105001241907

U2 - 10.1016/j.matlet.2025.138457

DO - 10.1016/j.matlet.2025.138457

M3 - 文章

AN - SCOPUS:105001241907

SN - 0167-577X

VL - 391

JO - Materials Letters

JF - Materials Letters

M1 - 138457

ER -

Mechanical properties and corrosion resistance of electron beam offset welded Inconel 718 and 304 stainless steel joints

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Keywords

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