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韩永全, 李建国, 姚青虎. 稀土对高效铁粉焊条焊缝组织及性能的影响[J]. 焊接学报, 2006, (8): 88-90.
引用本文: 韩永全, 李建国, 姚青虎. 稀土对高效铁粉焊条焊缝组织及性能的影响[J]. 焊接学报, 2006, (8): 88-90.
shu
Han Yongquan, Li Jianguo, Yao Qinghu. Effect of rare-earth on microstrcture and performance of Fe powder covered electrode welded joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (8): 88-90.
Citation: Han Yongquan, Li Jianguo, Yao Qinghu. Effect of rare-earth on microstrcture and performance of Fe powder covered electrode welded joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (8): 88-90.
shu

稀土对高效铁粉焊条焊缝组织及性能的影响

Effect of rare-earth on microstrcture and performance of Fe powder covered electrode welded joint

    摘要
  • 摘要: 通过对普通铁粉焊条药皮成分进行调整,并加入稀土添加剂研制出了一种新型含稀土高效铁粉焊条。对试件冲击断口的扫描电镜分析,采用IA3001型图像分析仪对焊缝金属夹杂物分析,以及通过低温冲击试验,证实了适量的稀土可起到细化晶粒,净化焊缝的作用。所研制的稀土高效铁粉焊条工艺性能良好,焊缝金属低温韧性好,可用于重要结构的焊接。

     

    Abstract: A new type of high efficiency Fe powder covered electrode contented rare-earth was researched. By analysis of fracture surface and metallic impurity in weld metal and impact charpy test in low temperature, it was confirmed that proper rare-earth can fined the crystalline grain and purified the weld metal. The covered electrode can be used to weld the important structure and has good technological properties.

     

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