Structure and diffusion mechanism of MB2/LY12 joint by diffusion welding

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

Structure and diffusion mechanism of MB2/LY12 joint by diffusion welding

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

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

4 Scopus citations

Abstract

MB2 alloy and LY12 alloy were welded by vacuum diffusion welding. The element distribution and intermetallic compounds at the interface were characterized by Scanning Acoustic Microscopy, SEM, XRD and EPMA. The results show that the welding interface bonding rate can be improved with the welding temperature, and the welding interface bonding can be achieved completely at the condition of 3MPa, 100min and 480°C. The solid solution Al(ss, Mg) and Mg(ss, Al) formed at the interface. Also, Al ₁₂Mg ₁₇, AlMg and Al ₃Mg ₂ formed at the interface, where the joint fracture occurred, and the thickness of the intermetallic compounds increase with increase of the temperature. The reaction layers of MB2 and LY12 welding joints can be divided into the following stages: effective physical contact, solid solution generating, intermetallic reaction layer generating, and intermetallic layer growing.

Original language	English
Pages (from-to)	138-142
Number of pages	5
Journal	Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research
Volume	26
Issue number	2
State	Published - Apr 2012
Externally published	Yes

Keywords

Intermetallic compound
Metallic materials
Microstructure
Vacuum diffusion welding

Cite this

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title = "Structure and diffusion mechanism of MB2/LY12 joint by diffusion welding",

abstract = "MB2 alloy and LY12 alloy were welded by vacuum diffusion welding. The element distribution and intermetallic compounds at the interface were characterized by Scanning Acoustic Microscopy, SEM, XRD and EPMA. The results show that the welding interface bonding rate can be improved with the welding temperature, and the welding interface bonding can be achieved completely at the condition of 3MPa, 100min and 480°C. The solid solution Al(ss, Mg) and Mg(ss, Al) formed at the interface. Also, Al 12Mg 17, AlMg and Al 3Mg 2 formed at the interface, where the joint fracture occurred, and the thickness of the intermetallic compounds increase with increase of the temperature. The reaction layers of MB2 and LY12 welding joints can be divided into the following stages: effective physical contact, solid solution generating, intermetallic reaction layer generating, and intermetallic layer growing.",

keywords = "Intermetallic compound, Metallic materials, Microstructure, Vacuum diffusion welding",

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

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TY - JOUR

T1 - Structure and diffusion mechanism of MB2/LY12 joint by diffusion welding

AU - Zhang, Jian

AU - Luo, Guoqiang

AU - Li, Meijuan

AU - Wang, Yiyu

AU - Shen, Qiang

AU - Zhang, Lianmeng

PY - 2012/4

Y1 - 2012/4

N2 - MB2 alloy and LY12 alloy were welded by vacuum diffusion welding. The element distribution and intermetallic compounds at the interface were characterized by Scanning Acoustic Microscopy, SEM, XRD and EPMA. The results show that the welding interface bonding rate can be improved with the welding temperature, and the welding interface bonding can be achieved completely at the condition of 3MPa, 100min and 480°C. The solid solution Al(ss, Mg) and Mg(ss, Al) formed at the interface. Also, Al 12Mg 17, AlMg and Al 3Mg 2 formed at the interface, where the joint fracture occurred, and the thickness of the intermetallic compounds increase with increase of the temperature. The reaction layers of MB2 and LY12 welding joints can be divided into the following stages: effective physical contact, solid solution generating, intermetallic reaction layer generating, and intermetallic layer growing.

AB - MB2 alloy and LY12 alloy were welded by vacuum diffusion welding. The element distribution and intermetallic compounds at the interface were characterized by Scanning Acoustic Microscopy, SEM, XRD and EPMA. The results show that the welding interface bonding rate can be improved with the welding temperature, and the welding interface bonding can be achieved completely at the condition of 3MPa, 100min and 480°C. The solid solution Al(ss, Mg) and Mg(ss, Al) formed at the interface. Also, Al 12Mg 17, AlMg and Al 3Mg 2 formed at the interface, where the joint fracture occurred, and the thickness of the intermetallic compounds increase with increase of the temperature. The reaction layers of MB2 and LY12 welding joints can be divided into the following stages: effective physical contact, solid solution generating, intermetallic reaction layer generating, and intermetallic layer growing.

KW - Intermetallic compound

KW - Metallic materials

KW - Microstructure

KW - Vacuum diffusion welding

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M3 - Article

AN - SCOPUS:84861923539

SN - 1005-3093

VL - 26

SP - 138

EP - 142

JO - Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research

JF - Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research

IS - 2

ER -

Structure and diffusion mechanism of MB2/LY12 joint by diffusion welding

Abstract

Keywords

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