INTERFACE STRUCTURE AND STRENGTH OF FLUXLESS ULTRASONIC SOLDERED JOINTS OF MAGNESIUM ALLOY - 文章详情页

作者：

Li, H. (Li, H..) | Li, Z. -X. (Li, Z. -X..) | Gao, C. (Gao, C..) | Wang, J. -Y. (Wang, J. -Y..)

收录：

EI Scopus SCIE

摘要：

This　study　was　performed　to　investigate　the　ultrasonic　soldering　of　the　magnesium　alloy　AZ31B　in　air,　without　using　flux.　A　new　type　of　Mg-Al-Zn-RE　filler　metal　with　a　low　melting　point　was　developed,　which　enabled　AZ31B　to　be　soldered　below　400　degrees　C.　The　granular　compound　distributed　in　the　filler　metal　may　be　Nd11Al3　intermetallic　phase.　The　bonding　strength　of　the　lap-joint　was　measured　and　the　microstructure　of　the　joint　was　also　analysed.　When　the　ultrasonic　vibration　time　was　set　to　3　s,　the　maximum　bonding　strength　was　85　MPa.　The　microstructure　of　the　soldered　joint　consisted　mainly　of　alpha-Mg　solid　solution　and　Mg-Zn　eutectic　phases.　The　soldered　joint　also　exhibited　principally　intergranular　fracture　mode.　The　corrosion　behaviour　of　the　soldered　joint　was　also　studied　by　electrochemical　testing.

关键词：

Corrosion Filler materials Magnesium alloys Strength Ultrasonic soldering

作者机构：

[ 1 ] [Li, H.]Beijing Univ Technol, Sch Mat Sci & Engn, Beijing, Peoples R China
[ 2 ] [Li, Z. -X.]Beijing Univ Technol, Sch Mat Sci & Engn, Beijing, Peoples R China
[ 3 ] [Gao, C.]Beijing Univ Technol, Sch Mat Sci & Engn, Beijing, Peoples R China
[ 4 ] [Wang, J. -Y.]Beijing Univ Technol, Sch Mat Sci & Engn, Beijing, Peoples R China

通讯作者信息：

[Li, H.]Beijing Univ Technol, Sch Mat Sci & Engn, Beijing, Peoples R China

电子邮件地址：

hongli@bjut.edu.cn |
zhxlee@bjut.edu.cn |
chengao@emails.bjut.edu.cn |
wangjinye@emails.bjut.edu.cn

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