Longitudinal Ultrasonic Vibration Assisted Rapid Solid Phase Bonding of 2024 Aluminum Alloy Using Ag as Interlayer for Structure Lightweight Design

被引：7

作者：

Ning, Baoqun ^{[1
,2
]}

Nie, Yong ^{[1
]}

Wang, Qian ^{[1
]}

Fu, Yu ^{[1
]}

Li, Yue ^{[1
]}

Han, Jian ^{[1
]}

Shao, Yingfeng ^{[3
]}

Yan, Jiuchun ^{[4
]}

机构：

[1] Tianjin Univ Technol, Sch Mat Sci & Engn, Tianjin 300384, Peoples R China

[2] Tianjin Met Mat High Efficient & Near Net Shaping, Tianjin 300384, Peoples R China

[3] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China

[4] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China

来源：

METALS AND MATERIALS INTERNATIONAL | 2021年 / 27卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Ultrasound; Aluminum alloy; Intermetallic compound; Solid phase bonding; Microstructure; Mechanical properties; IN-SITU TEM; ZN-AL ALLOY; MECHANICAL-PROPERTIES; JOINTS; MICROSTRUCTURE; DEFORMATION; FILLER; INTERFACE; DISLOCATION; DIFFUSION;

D O I：

10.1007/s12540-020-00891-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper introduced a method of rapid solid-phase bonding Al block with Ag as the intermediate layer by longitudinal ultrasonic vibration under eutectic temperature in the atmospheric environment. This method is suitable for the application of structural lightweight design. It was observed that Al and Ag diffuse with each other in the weld seam to form an intermetallic compound Ag2Al with close hexagonal structure. The effects of different reaction temperatures and ultrasonic vibration times on the microstructure and mechanical properties of intermetallic compound Ag2Al were discussed. The influence of the effect of ultrasonic softening waves on surface oxide film rupture and element diffusion was explored. With the increase of ultrasonic vibration time, the intermetallic compounds grew along with the interface and the thickness increased. When the welding temperature was 500 degrees C and the ultrasonic vibration was 20 s, the highest average strength of the welded joint reaches 46.68 MPa.

引用

页码：2059 / 2066

页数：8

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