Microstructure evolution and mechanical properties of ultrasonically TLP bonded Mg joint

Zhiwu Xu; Shu Chen; Liming Peng; Jiuchun Yan; Zhengwei Li

doi:10.1016/j.jmapro.2020.01.056

Microstructure evolution and mechanical properties of ultrasonically TLP bonded Mg joint

Zhiwu Xu^*
, Shu Chen
, Liming Peng
, Jiuchun Yan
, Zhengwei Li

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology

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

16 Scopus citations

Abstract

AZ31B Mg alloys were joined with a pure Zn interlayer via ultrasonic-assisted transient liquid phase bonding. The formation and evolution of intermetallic compounds (IMCs) and the mechanical properties of the bonded joints were investigated. Results showed that joints could form within an extra short time of 0.1 s via eutectic reaction, eutectoid reaction and diffusion bonding. Mg-Zn eutectoid structures, IMCs of MgZn and MgZn₂ formed inside the bonded joint. The width of the MgZn₂ phase decreased with prolonged ultrasonication time, high ultrasonication power, and sonotrode pressure. The entire joint was characterized by eutectoid structures without MgZn₂ at a high sonotrode pressure of 0.4 MPa. MgZn₂ had a higher hardness and modulus than MgZn, Mg-Zn eutectoid structure, and Mg substrate. Joints fractured through the MgZn₂ phase and eutectoid structure had shear strength values of 30 and 40 MPa, respectively.

Original language	English
Pages (from-to)	145-151
Number of pages	7
Journal	Journal of Manufacturing Processes
Volume	52
DOIs	https://doi.org/10.1016/j.jmapro.2020.01.056
State	Published - Apr 2020

Keywords

Fracture path
Intermetallic compounds
Shear strength
Transient liquid phase
Ultrasonic

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10.1016/j.jmapro.2020.01.056

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@article{88e5708006804ba48905922ab13cedcb,

title = "Microstructure evolution and mechanical properties of ultrasonically TLP bonded Mg joint",

abstract = "AZ31B Mg alloys were joined with a pure Zn interlayer via ultrasonic-assisted transient liquid phase bonding. The formation and evolution of intermetallic compounds (IMCs) and the mechanical properties of the bonded joints were investigated. Results showed that joints could form within an extra short time of 0.1 s via eutectic reaction, eutectoid reaction and diffusion bonding. Mg-Zn eutectoid structures, IMCs of MgZn and MgZn2 formed inside the bonded joint. The width of the MgZn2 phase decreased with prolonged ultrasonication time, high ultrasonication power, and sonotrode pressure. The entire joint was characterized by eutectoid structures without MgZn2 at a high sonotrode pressure of 0.4 MPa. MgZn2 had a higher hardness and modulus than MgZn, Mg-Zn eutectoid structure, and Mg substrate. Joints fractured through the MgZn2 phase and eutectoid structure had shear strength values of 30 and 40 MPa, respectively.",

keywords = "Fracture path, Intermetallic compounds, Shear strength, Transient liquid phase, Ultrasonic",

author = "Zhiwu Xu and Shu Chen and Liming Peng and Jiuchun Yan and Zhengwei Li",

note = "Publisher Copyright: {\textcopyright} 2020 The Society of Manufacturing Engineers",

year = "2020",

month = apr,

doi = "10.1016/j.jmapro.2020.01.056",

language = "英语",

volume = "52",

pages = "145--151",

journal = "Journal of Manufacturing Processes",

issn = "1526-6125",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Microstructure evolution and mechanical properties of ultrasonically TLP bonded Mg joint

AU - Xu, Zhiwu

AU - Chen, Shu

AU - Peng, Liming

AU - Yan, Jiuchun

AU - Li, Zhengwei

PY - 2020/4

Y1 - 2020/4

N2 - AZ31B Mg alloys were joined with a pure Zn interlayer via ultrasonic-assisted transient liquid phase bonding. The formation and evolution of intermetallic compounds (IMCs) and the mechanical properties of the bonded joints were investigated. Results showed that joints could form within an extra short time of 0.1 s via eutectic reaction, eutectoid reaction and diffusion bonding. Mg-Zn eutectoid structures, IMCs of MgZn and MgZn2 formed inside the bonded joint. The width of the MgZn2 phase decreased with prolonged ultrasonication time, high ultrasonication power, and sonotrode pressure. The entire joint was characterized by eutectoid structures without MgZn2 at a high sonotrode pressure of 0.4 MPa. MgZn2 had a higher hardness and modulus than MgZn, Mg-Zn eutectoid structure, and Mg substrate. Joints fractured through the MgZn2 phase and eutectoid structure had shear strength values of 30 and 40 MPa, respectively.

AB - AZ31B Mg alloys were joined with a pure Zn interlayer via ultrasonic-assisted transient liquid phase bonding. The formation and evolution of intermetallic compounds (IMCs) and the mechanical properties of the bonded joints were investigated. Results showed that joints could form within an extra short time of 0.1 s via eutectic reaction, eutectoid reaction and diffusion bonding. Mg-Zn eutectoid structures, IMCs of MgZn and MgZn2 formed inside the bonded joint. The width of the MgZn2 phase decreased with prolonged ultrasonication time, high ultrasonication power, and sonotrode pressure. The entire joint was characterized by eutectoid structures without MgZn2 at a high sonotrode pressure of 0.4 MPa. MgZn2 had a higher hardness and modulus than MgZn, Mg-Zn eutectoid structure, and Mg substrate. Joints fractured through the MgZn2 phase and eutectoid structure had shear strength values of 30 and 40 MPa, respectively.

KW - Fracture path

KW - Intermetallic compounds

KW - Shear strength

KW - Transient liquid phase

KW - Ultrasonic

UR - https://www.scopus.com/pages/publications/85078722812

U2 - 10.1016/j.jmapro.2020.01.056

DO - 10.1016/j.jmapro.2020.01.056

M3 - 文章

AN - SCOPUS:85078722812

SN - 1526-6125

VL - 52

SP - 145

EP - 151

JO - Journal of Manufacturing Processes

JF - Journal of Manufacturing Processes

ER -

Microstructure evolution and mechanical properties of ultrasonically TLP bonded Mg joint

Abstract

Keywords

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