高级检索
张丽霞, 孟德强, 郑文龙, 冯吉才. 5005铝合金与1Cr18Ni9Ti的真空钎焊分析[J]. 焊接学报, 2017, 38(1): 107-111.
引用本文: 张丽霞, 孟德强, 郑文龙, 冯吉才. 5005铝合金与1Cr18Ni9Ti的真空钎焊分析[J]. 焊接学报, 2017, 38(1): 107-111.
ZHANG Lixia, MENG Deqiang, ZHENG Wenlong, FENG Jicai. Vacuum brazing 5005 aluminum alloy to 1Cr18Ni9Ti stainless steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(1): 107-111.
Citation: ZHANG Lixia, MENG Deqiang, ZHENG Wenlong, FENG Jicai. Vacuum brazing 5005 aluminum alloy to 1Cr18Ni9Ti stainless steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(1): 107-111.

5005铝合金与1Cr18Ni9Ti的真空钎焊分析

Vacuum brazing 5005 aluminum alloy to 1Cr18Ni9Ti stainless steel

  • 摘要: 采用Al-Si-Mg钎料成功实现了5005铝合金与1Cr18Ni9Ti不锈钢的真空钎焊,借助扫描电镜、能谱分析仪和X射线衍射仪对焊后接头界面组织进行分析,同时对接头抗剪强度进行测试.结果表明,焊后接头界面结构从1Cr18Ni9Ti不锈钢侧到5005铝合金侧的界面组织依次为FeAl,FeAl3,FemAln+αAl.随着钎焊温度的升高或保温时间的延长,接头抗剪强度均呈现先升高后降低的变化趋势.当钎焊温度为580℃,保温时间为15 min时,接头抗剪强度达到最大值49 MPa.接头断裂形式受钎焊温度的影响,当钎焊温度较低时,接头断裂于铝合金侧氧化膜层及FemAln+αAl反应层;温度升高至580℃时,接头断裂于FemAln+αAl反应层中,接头抗剪强度最高.

     

    Abstract: Vacuum brazing of 5005 aluminum alloy and 1Cr18Ni9Ti stainless steel was carried out with Al-Si-Mg filler foil. The interfacial microstructure and mechanical properties of the brazed joints were investigated by scanning electron microscope, energy dispersion spectrometer, x-ray diffractometer and tensile test, respectively. The experimental result showed that the typical interface structure of the joints was 1Cr18Ni9Ti stainless steel/FeAl/FeAl3/FemAln+αAl/5005 aluminum alloy. With brazing temperature and holding time,inereased the shear strength of the joints increased firstly and then decreased. Besides, mechanical property tests showed thatwhen the brazing temperature was 580℃ and the holding time was15 min, the maximum shear strength of joints was 49 MPa. Moreover, the fracture form of the joints was mainly affected by the brazing temperature. When the brazing temperature was low, the joints fractured in the oxide layer and FemAln+αAl layer. When the temperature was high, the joints fractured in FemAln+αAl layer completely.

     

/

返回文章
返回