高级检索
陈茂爱, 武传松, 刘国栋. SiCp/LD2复合材料的激光焊焊缝组织及性能[J]. 焊接学报, 2006, (9): 51-54.
引用本文: 陈茂爱, 武传松, 刘国栋. SiCp/LD2复合材料的激光焊焊缝组织及性能[J]. 焊接学报, 2006, (9): 51-54.
shu
CHEN Mao-ai, WU Chuan-song, LIU Guo-dong. Microstructure and properties of weld of laser beam welded SiC particle reinforced LD2 Al alloy matrix composite[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (9): 51-54.
Citation: CHEN Mao-ai, WU Chuan-song, LIU Guo-dong. Microstructure and properties of weld of laser beam welded SiC particle reinforced LD2 Al alloy matrix composite[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (9): 51-54.
shu

SiCp/LD2复合材料的激光焊焊缝组织及性能

Microstructure and properties of weld of laser beam welded SiC particle reinforced LD2 Al alloy matrix composite

    摘要
  • 摘要: 利用连续CO2激光焊焊接了SiCp/LD2复合材料,利用光镜、X射线及电子探针分析了焊缝组织,结果表明,在所用的热输入范围内,焊缝中均发生了界面反应,生成了针状Al4C3。随着热输入的增大,针状Al4C3的尺寸增大,而焊缝中的气孔由圆形变为不规则状。通过在工件之间添加一嵌条进行对接焊,较好地控制了Al4C3的形成,得到了性能良好的接头。

     

    Abstract: Laser beam welding was conducted on SiC particle reinforced LD2 Al alloy matrix(SiCp/LD2)composite and the microstructure of weld was investigated by means of optical microscope, X-ray diffraction and electronic probe micro-analysis.The result showed that within the range of heat input, interface reaction took place in all the welds, and acicular Al4C3 was formed. Both the size and quantity of acicular Al4C3 increased with energy input, and the shape of gas pore changed from circular to angular. With a sheet inserted between the composite workpieces, formation of Al4C3 was effectively suppressed and joints with fairly high strength were obtained.

     

    • HTML全文
    • 参考文献(0)
    • 相关文章
    • 施引文献
  • 资源附件(0)

/

返回文章
返回