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脉冲TIG焊接工艺参数对Inconel601H镍基合金焊缝晶粒大小的影响

王涛, 郑振太, 董天顺, 张立胜

王涛, 郑振太, 董天顺, 张立胜. 脉冲TIG焊接工艺参数对Inconel601H镍基合金焊缝晶粒大小的影响[J]. 焊接学报, 2015, 36(4): 109-112.
引用本文: 王涛, 郑振太, 董天顺, 张立胜. 脉冲TIG焊接工艺参数对Inconel601H镍基合金焊缝晶粒大小的影响[J]. 焊接学报, 2015, 36(4): 109-112.
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WANG Tao, ZHENG Zhentai, DONG Tianshun, ZHANG Lisheng. Effect of welding parameters on grain size in Inconel601H nickel-based alloy weld by P-TIG welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(4): 109-112.
Citation: WANG Tao, ZHENG Zhentai, DONG Tianshun, ZHANG Lisheng. Effect of welding parameters on grain size in Inconel601H nickel-based alloy weld by P-TIG welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(4): 109-112.
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脉冲TIG焊接工艺参数对Inconel601H镍基合金焊缝晶粒大小的影响

  • 河北工业大学材料科学与工程学院, 天津 300132

Effect of welding parameters on grain size in Inconel601H nickel-based alloy weld by P-TIG welding

  • School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300132, China

摘要

    摘要
  • 摘要: 为了控制镍基合金焊缝晶粒粗大倾向,研究工艺参数对焊缝晶粒大小的影响,采用脉冲TIG焊对Inconel601H镍基合金进行焊接,焊后借助光学显微镜对焊缝横截面金相组织进行观察并计算晶粒尺寸.结果表明,在Inconel601H镍基合金的脉冲TIG焊中,焊接工艺参数对焊缝晶粒大小的影响方式不同.并且在参数的一定范围内,随着峰值电流、脉冲频率及占空比的提高,晶粒细化效果明显;但随着基值电流提高,晶粒趋于长大.因此,采用适当的焊接工艺参数可以有助于改善镍基合金焊缝晶粒粗大问题.
    Abstract: In order to control the grain size in nickel-based alloy weld, the effect of welding parameters on the grain size in the weld was studied. Pulse tungsten inert gas (P-TIG) welding of Inconel601H nickel-based alloy was carried out. With optical microscope, the microstructure of the weld was observed and the grain size was calculated. The results show that the effect of welding parameters on grain size of the weld was different during P-TIG of Inconel601H nickel-based alloy. With increase of peak welding current, pulse frequency and pulse duty in a certain range, the grain refinement was obvious. However, the grain tended to grow with the increase of base welding current. Therefore, the grain coarsening in nickel-based alloy weld can be improved using proper welding parameters.
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  • 收稿日期:  2013-09-23

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