Mechanism of Mg–Al Ultrasonic-Assisted Transient Liquid Phase Bonding

LI Zhuolin; FU Junhong; WANG Jian; WEI Shoujing; SONG Xiaoguo; BIAN Hong

doi:10.16080/j.issn1671-833x.2022.21.104

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Mechanism of Mg–Al Ultrasonic-Assisted Transient Liquid Phase Bonding

更新时间：2025-10-30

- Mechanism of Mg–Al Ultrasonic-Assisted Transient Liquid Phase Bonding
- Aeronautical Manufacturing Technology Vol. 65, Issue 21, Pages: 104-111(2022)
- 作者机构：
  
  1. 哈尔滨工业大学先进焊接与连接国家重点实验室,哈尔滨,150001
  2. 哈尔滨工业大学（威海）山东省特种焊接技术重点实验室,威海,264209
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2022.21.104
  CLC：
- Published：2022
- 稿件说明：
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李卓霖，符军红，王健，卫首敬，宋晓国，卞红. 镁– 铝超声辅助瞬态液相扩散连接机理研究[J]. 航空制造技术, 2022, 65(21): 104-111.

LI Zhuolin, FU Junhong, WANG Jian, WEI Shoujing, SONG Xiaoguo, BIAN Hong. Mechanism of Mg–Al Ultrasonic-Assisted Transient Liquid Phase Bonding[J]. Aeronautical Manufacturing Technology, 2022, 65(21): 104-111.
李卓霖，符军红，王健，卫首敬，宋晓国，卞红. 镁– 铝超声辅助瞬态液相扩散连接机理研究[J]. 航空制造技术, 2022, 65(21): 104-111. DOI： 10.16080/j.issn1671-833x.2022.21.104.

LI Zhuolin, FU Junhong, WANG Jian, WEI Shoujing, SONG Xiaoguo, BIAN Hong. Mechanism of Mg–Al Ultrasonic-Assisted Transient Liquid Phase Bonding[J]. Aeronautical Manufacturing Technology, 2022, 65(21): 104-111. DOI： 10.16080/j.issn1671-833x.2022.21.104.

摘要

镁– 铝复合散热结构件在航空工业领域具有较好的应用前景。针对镁– 铝异种材料连接中极易产生脆性Al

、Al

金属间化合物的关键问题，本试验采用超声辅助瞬态液相连接工艺（Ultrasonic-assisted transientliquid phase bonding，U-TLP Bonding），以纯Zn 作为中间层，在350 ℃下实现了Mg/Zn/Al 接头的可靠连接；研究了超声作用时间对接头微观组织演变和力学性能的影响，在最优工艺参数下，接头中主要为Mg+MgZn 共析组织，接头平均抗剪强度达到50.2 MPa。

Abstract

The Mg–Al composite heat dissipation structure has a good application prospect in the aviation industry. In view of the key problem that brittle Al

compounds are easily generated in the connection of Mg–Al dissimilar materials

this experiment adopts the ultrasonic-assisted transient liquid phase bonding (U-TLP Bonding)

and uses pure Zn as the interlayer

the reliable connection of Mg/Zn/Al joint is realized at 350 ℃ . The effect of ultrasonic time on the microstructure evolution and mechanical properties of the joint is studied. Under the optimal process parameters

the joint is mainly composed of Mg+MgZn eutectoid structure

and the average shear strength of the joint reaches 50.2 MPa.

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