| 本文已被：浏览次 下载次 |
码上扫一扫！ |
|
|
|
| Analysis on SiCp/2024 aluminum matrix composites surface reinforcements exposing and vacuum brazing |
|
FENG Tao1, WANG Yin zhen1, LOU Song nian2, ZHANG Meng meng1, LI Chun peng1
|
|
(1.College of Electromechanical Engineering in China University of Petroleum, Dongying 257061, China;2.School of Material Science and Engineering, Shanghai Jiaotong University, Shanghai 200030, China)
|
| Abstract: |
| Using the particle exposing and surface alloying technique of aluminum matrix composite, taking M6 and BAI88Si as the filler metal, the SiCp/2024Al aluminum matrix composite was brazed. The metallographic analysis, tensile test and X ray diffraction experiment were done. The test results indicate that the surface reinforcements are partly exposed by (NaOH+HNO3) solution. The brazing joint combination state could be improved by depositing Cu element with M6 filler metal. The brazing joint and the base metal combined well with no obvious boundary. The reinforced composite solder joints with SiC particle are formed. There is no SiC particle agglomerated in the brazing joint. The tensile strength of the welded joint can reach 202 MPa. There is no Al4C3 brittleness phase formed in the brazing joint. |
| Key words: SiCp/2024 aluminum matrix composites particle exposure surface alloying welding |
|
|