Proceedings of the 2015 3rd International Conference on Machinery, Materials and Information Technology Applications

<Previous Article In Volume
Next Article In Volume>

Effect of the Substrate Distance on the Mechanical Properties of SnBi-?Al2O3 Joint Welded by Ultrasonic-assisted Brazing

Authors
Ning Zhang, Haobin Shao, Mingfan Zhu, Chunhong Zhang
Corresponding Author
Ning Zhang
Available Online November 2015.
DOI
10.2991/icmmita-15.2015.212How to use a DOI?
Keywords
SnBi-?Al2O3; substrate distance; ultrasonic-assisted brazing; mechanical properties
Abstract

New ultrasonic-assisted brazing technology was adopted to weld mini butt joint by SnBi composite solder with 1.5wt% Al2O3 content and 0.5mm, 0.8mm and 1mm three kinds of copper substrate distance. The mechanical properties of the mini butt joint were characterized by means of the micro hardness tester and home-made micro mechanical test system. The fracture morphology of the samples were respected by scanning electron microscope. The results showed that the ultrasonic-assisted brazing method could promote the expansion of liquid solder on the substrate, improve the wettability, and full of the weld. With the substrate spacing of 0.5mm, 0.8mm to 1mm gradually increased, the micro hardness, tensile strength and elongation increased along with it. A hard brittle IMC strip formed between the composite solder and the copper substrate, which made the boundary brazing seam hardness was more important than that of the middle. The fracture mechanism of SnBi-?Al2O3 micro soldering joint is cleavage fracture, which shows the characteristics of brittle fracture.

Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

<Previous Article In Volume
Next Article In Volume>
Volume Title
Proceedings of the 2015 3rd International Conference on Machinery, Materials and Information Technology Applications
Series
Advances in Computer Science Research
Publication Date
November 2015
ISBN
978-94-6252-120-9
ISSN
2352-538X
DOI
10.2991/icmmita-15.2015.212How to use a DOI?
Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

risenwbib
TY  - CONF
AU  - Ning Zhang
AU  - Haobin Shao
AU  - Mingfan Zhu
AU  - Chunhong Zhang
PY  - 2015/11
DA  - 2015/11
TI  - Effect of the Substrate Distance on the Mechanical Properties of SnBi-?Al2O3 Joint Welded by Ultrasonic-assisted Brazing
BT  - Proceedings of the 2015 3rd International Conference on Machinery, Materials and Information Technology Applications
PB  - Atlantis Press
SP  - 1154
EP  - 1158
SN  - 2352-538X
UR  - https://doi.org/10.2991/icmmita-15.2015.212
DO  - 10.2991/icmmita-15.2015.212
ID  - Zhang2015/11
ER  -