Process and Properties of Brazing High Volume SiCp/6063Al Composites with Glass

被引：0
|
作者：
Yu Kaikai [1 ]
Lin Tiesong [1 ]
He Peng [1 ]
Liu Guiming [1 ]
机构：
[1] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2018年 / 47卷
关键词：
SiCp/Al composite with high volume; composite glass solder; anodizing; brazing; shear strength;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A composite glass solder, composed of PbO-B2O3-ZnO system and PbTiO3 crystal was designed to braze 60vol% SiCp/6063Al composites in air. Anodic oxidation of the composites and hot press sintering of the composite glass solder to assist brazing can improve the strength of the joint. The effects of the temperature and holding time on the brazed joints were studied by DSC, XRD, SEM and EDS. The results show that the strength of the joint can be improved by the anodic oxidation of the composites, the increase of the brazing temperature and the prolongation of the holding time to a certain extent. When the composite glass welding piece is used to braze composites which has been anodically oxidized already, with the brazing temperature 450 degrees C and the holding time 30 min, the shear strength of the brazed joint is 33 MPa. During the brazing process, the oxide film of the composites is dissolved in the glass, and the Al element is diffused in a slight amount. At last, a weld similar to the base metal structure forms.
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页码：440 / 444
页数：5
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