Improving fusion zone microstructure inhomogeneity in dissimilar-metal welding by laser welding with oscillation

Zhenguo Jiang; Xi Chen; Kun Yu; Zhenglong Lei; Yanbin Chen; Shibo Wu; Zhijun Li

doi:10.1016/j.matlet.2019.126995

Improving fusion zone microstructure inhomogeneity in dissimilar-metal welding by laser welding with oscillation

Zhenguo Jiang
, Xi Chen
, Kun Yu
, Zhenglong Lei^*
, Yanbin Chen
, Shibo Wu
, Zhijun Li

^*Corresponding author for this work

School of Materials Science and Engineering

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

40 Scopus citations

Abstract

Laser processing of welding with oscillation was adopted to weld dissimilar metals of Ni-Cr-Mo and Cu-Cr-Zr so as to prevent the generation of the macroscopic segregation. Analyses of morphology, element distribution and mechanical property were carried out to investigate the effect of oscillation on dissimilar-metal welding. The results indicated that with the application of oscillation of laser, the poor mixing zone and the partial melting strengthening phases were obviously reduced, and the distribution of main constituent elements was more uniform. Due to the better effect of solid solution strengthening, the maximum increment of the tensile strength and elongation could approximately be up to 20% and 45%, respectively.

Original language	English
Article number	126995
Journal	Materials Letters
Volume	261
DOIs	https://doi.org/10.1016/j.matlet.2019.126995
State	Published - 15 Feb 2020

Keywords

Dissimilar-metal
Laser processing
Microstructure
Segregation
Welding

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10.1016/j.matlet.2019.126995

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title = "Improving fusion zone microstructure inhomogeneity in dissimilar-metal welding by laser welding with oscillation",

abstract = "Laser processing of welding with oscillation was adopted to weld dissimilar metals of Ni-Cr-Mo and Cu-Cr-Zr so as to prevent the generation of the macroscopic segregation. Analyses of morphology, element distribution and mechanical property were carried out to investigate the effect of oscillation on dissimilar-metal welding. The results indicated that with the application of oscillation of laser, the poor mixing zone and the partial melting strengthening phases were obviously reduced, and the distribution of main constituent elements was more uniform. Due to the better effect of solid solution strengthening, the maximum increment of the tensile strength and elongation could approximately be up to 20\% and 45\%, respectively.",

keywords = "Dissimilar-metal, Laser processing, Microstructure, Segregation, Welding",

author = "Zhenguo Jiang and Xi Chen and Kun Yu and Zhenglong Lei and Yanbin Chen and Shibo Wu and Zhijun Li",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2020",

month = feb,

day = "15",

doi = "10.1016/j.matlet.2019.126995",

language = "英语",

volume = "261",

journal = "Materials Letters",

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publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Improving fusion zone microstructure inhomogeneity in dissimilar-metal welding by laser welding with oscillation

AU - Jiang, Zhenguo

AU - Chen, Xi

AU - Yu, Kun

AU - Lei, Zhenglong

AU - Chen, Yanbin

AU - Wu, Shibo

AU - Li, Zhijun

PY - 2020/2/15

Y1 - 2020/2/15

N2 - Laser processing of welding with oscillation was adopted to weld dissimilar metals of Ni-Cr-Mo and Cu-Cr-Zr so as to prevent the generation of the macroscopic segregation. Analyses of morphology, element distribution and mechanical property were carried out to investigate the effect of oscillation on dissimilar-metal welding. The results indicated that with the application of oscillation of laser, the poor mixing zone and the partial melting strengthening phases were obviously reduced, and the distribution of main constituent elements was more uniform. Due to the better effect of solid solution strengthening, the maximum increment of the tensile strength and elongation could approximately be up to 20% and 45%, respectively.

AB - Laser processing of welding with oscillation was adopted to weld dissimilar metals of Ni-Cr-Mo and Cu-Cr-Zr so as to prevent the generation of the macroscopic segregation. Analyses of morphology, element distribution and mechanical property were carried out to investigate the effect of oscillation on dissimilar-metal welding. The results indicated that with the application of oscillation of laser, the poor mixing zone and the partial melting strengthening phases were obviously reduced, and the distribution of main constituent elements was more uniform. Due to the better effect of solid solution strengthening, the maximum increment of the tensile strength and elongation could approximately be up to 20% and 45%, respectively.

KW - Dissimilar-metal

KW - Laser processing

KW - Microstructure

KW - Segregation

KW - Welding

UR - https://www.scopus.com/pages/publications/85075425731

U2 - 10.1016/j.matlet.2019.126995

DO - 10.1016/j.matlet.2019.126995

M3 - 文章

AN - SCOPUS:85075425731

SN - 0167-577X

VL - 261

JO - Materials Letters

JF - Materials Letters

M1 - 126995

ER -

Improving fusion zone microstructure inhomogeneity in dissimilar-metal welding by laser welding with oscillation

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Keywords

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