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陈思杰, 魏明强, 赵丕峰. 钎焊时间对SiCP/Al6063复合材料真空钎焊组织性能影响[J]. 焊接学报, 2015, 36(10): 87-90.
引用本文: 陈思杰, 魏明强, 赵丕峰. 钎焊时间对SiCP/Al6063复合材料真空钎焊组织性能影响[J]. 焊接学报, 2015, 36(10): 87-90.
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CHEN Sijie, WEI Mingqiang, ZHAO Pifeng. Study on microstructure and property of aluminum matrix composites SiCP/Al6063 vacuum brazing joint with different holding time[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(10): 87-90.
Citation: CHEN Sijie, WEI Mingqiang, ZHAO Pifeng. Study on microstructure and property of aluminum matrix composites SiCP/Al6063 vacuum brazing joint with different holding time[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(10): 87-90.
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钎焊时间对SiCP/Al6063复合材料真空钎焊组织性能影响

Study on microstructure and property of aluminum matrix composites SiCP/Al6063 vacuum brazing joint with different holding time

    摘要
  • 摘要: 采用Al5Si28Cu2.5Ti钎料,在真空钎焊炉中钎焊SiCP为55％的SiCP/Al6063铝基复合材料,钎焊温度580 ℃,研究了钎焊时间对接头组织性能的影响. 结果表明,钎焊时间20 min时钎缝存在大量的共晶组织,界面结合强度低,钎焊时间60 min时共晶组织消失,钎缝中有网状脆性相析出,碳化物有偏聚现象,界面有微裂纹,接头性能不好,钎焊时间40 min接头的组织性能最好,抗剪强度为96 MPa.

     

    Abstract: The SiCP/Al6063 composites containing 55% SiCP was joined by vacuum brazing process using Al5Si28Cu2.5Ti filler at 580 ℃. The influence of holding time on the joint microstructure and mechanical property was studied. The results show that the active titanium element improved the solder wettability of composite materials. The joint microstructure used holding time of 40min was the best with a shear strength of 96 MPa.

     

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