Effect of silver interlayer on microstructure and mechanical properties of diffusion-bonded Mg-Al joints

Yiyu Wang; Guoqiang Luo; Jian Zhang; Qiang Shen; Lianmeng Zhang

doi:10.1016/j.jallcom.2012.06.120

Effect of silver interlayer on microstructure and mechanical properties of diffusion-bonded Mg-Al joints

Yiyu Wang, Guoqiang Luo, Jian Zhang, Qiang Shen, Lianmeng Zhang

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

56 Scopus citations

Abstract

The diffusion-bonded Mg-Al joints with and without silver interlayer prepared by Magnetron Sputtering have been investigated. The addition of silver interlayers eliminated the formation of Mg-Al intermetallic compounds and improved the bonding strength of Mg-Al joints. Mg₃Ag, MgAg and Ag-based solid solution were observed in the interface of Mg/Ag/Al joint. The microhardness value of the interface in Mg/Ag/Al joint with a maximum value 125 HV of Mg₃Ag layer is much lower than that in Mg/Al joint with a maximum value 225 HV of Mg₂Al₃ layer. Fracture failure in Mg/Ag/Al joint occurred between Mg₃Ag layer and MgAg layer. Transgranular fracture and plastic deformation observed on fracture surfaces of Mg/Ag/Al joint differ from cleavage fracture features of Mg/Al joint.

Original language	English
Pages (from-to)	458-461
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	541
DOIs	https://doi.org/10.1016/j.jallcom.2012.06.120
State	Published - Nov 15 2012
Externally published	Yes

Funding

The authors gratefully acknowledge the sponsorship from the National Natural Science Foundation of China (No. 11072228 ) for the financial support.

Keywords

Al alloy
Diffusion bonding
Interfaces
Magnetron Sputtering
Mg alloy
Silver interlayer

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10.1016/j.jallcom.2012.06.120

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title = "Effect of silver interlayer on microstructure and mechanical properties of diffusion-bonded Mg-Al joints",

abstract = "The diffusion-bonded Mg-Al joints with and without silver interlayer prepared by Magnetron Sputtering have been investigated. The addition of silver interlayers eliminated the formation of Mg-Al intermetallic compounds and improved the bonding strength of Mg-Al joints. Mg3Ag, MgAg and Ag-based solid solution were observed in the interface of Mg/Ag/Al joint. The microhardness value of the interface in Mg/Ag/Al joint with a maximum value 125 HV of Mg3Ag layer is much lower than that in Mg/Al joint with a maximum value 225 HV of Mg2Al3 layer. Fracture failure in Mg/Ag/Al joint occurred between Mg3Ag layer and MgAg layer. Transgranular fracture and plastic deformation observed on fracture surfaces of Mg/Ag/Al joint differ from cleavage fracture features of Mg/Al joint.",

keywords = "Al alloy, Diffusion bonding, Interfaces, Magnetron Sputtering, Mg alloy, Silver interlayer",

author = "Yiyu Wang and Guoqiang Luo and Jian Zhang and Qiang Shen and Lianmeng Zhang",

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doi = "10.1016/j.jallcom.2012.06.120",

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journal = "Journal of Alloys and Compounds",

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TY - JOUR

T1 - Effect of silver interlayer on microstructure and mechanical properties of diffusion-bonded Mg-Al joints

AU - Wang, Yiyu

AU - Luo, Guoqiang

AU - Zhang, Jian

AU - Shen, Qiang

AU - Zhang, Lianmeng

PY - 2012/11/15

Y1 - 2012/11/15

N2 - The diffusion-bonded Mg-Al joints with and without silver interlayer prepared by Magnetron Sputtering have been investigated. The addition of silver interlayers eliminated the formation of Mg-Al intermetallic compounds and improved the bonding strength of Mg-Al joints. Mg3Ag, MgAg and Ag-based solid solution were observed in the interface of Mg/Ag/Al joint. The microhardness value of the interface in Mg/Ag/Al joint with a maximum value 125 HV of Mg3Ag layer is much lower than that in Mg/Al joint with a maximum value 225 HV of Mg2Al3 layer. Fracture failure in Mg/Ag/Al joint occurred between Mg3Ag layer and MgAg layer. Transgranular fracture and plastic deformation observed on fracture surfaces of Mg/Ag/Al joint differ from cleavage fracture features of Mg/Al joint.

AB - The diffusion-bonded Mg-Al joints with and without silver interlayer prepared by Magnetron Sputtering have been investigated. The addition of silver interlayers eliminated the formation of Mg-Al intermetallic compounds and improved the bonding strength of Mg-Al joints. Mg3Ag, MgAg and Ag-based solid solution were observed in the interface of Mg/Ag/Al joint. The microhardness value of the interface in Mg/Ag/Al joint with a maximum value 125 HV of Mg3Ag layer is much lower than that in Mg/Al joint with a maximum value 225 HV of Mg2Al3 layer. Fracture failure in Mg/Ag/Al joint occurred between Mg3Ag layer and MgAg layer. Transgranular fracture and plastic deformation observed on fracture surfaces of Mg/Ag/Al joint differ from cleavage fracture features of Mg/Al joint.

KW - Al alloy

KW - Diffusion bonding

KW - Interfaces

KW - Magnetron Sputtering

KW - Mg alloy

KW - Silver interlayer

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DO - 10.1016/j.jallcom.2012.06.120

M3 - Letter

AN - SCOPUS:84865053572

SN - 0925-8388

VL - 541

SP - 458

EP - 461

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Effect of silver interlayer on microstructure and mechanical properties of diffusion-bonded Mg-Al joints

Abstract

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Keywords

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