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MING Zhu1,2, WANG Kehong1, WANG wei2, FAN Chenglei3, WANG Youqi2, FENG Shengqiang2. Effect of welding wire compositions on welding process stability and droplet transfer behavior of high nitrogen stainless steel GMAW[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(7): 24-28. DOI: 10.12073/j.hjxb.2018390168
Citation: MING Zhu1,2, WANG Kehong1, WANG wei2, FAN Chenglei3, WANG Youqi2, FENG Shengqiang2. Effect of welding wire compositions on welding process stability and droplet transfer behavior of high nitrogen stainless steel GMAW[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(7): 24-28. DOI: 10.12073/j.hjxb.2018390168
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Effect of welding wire compositions on welding process stability and droplet transfer behavior of high nitrogen stainless steel GMAW

  • School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;
    2. Ningbo Branch of China Academy of Ordnance Science, Ningbo 014034, China;
    3. State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China

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  • Received Date: January 20, 2018
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    • Abstract
  • In order to analyze the stability of the special welding wires for high nitrogen stainless steel, high-speed camera was used to track the droplet transfer morphology and analyzer of Hannover was used to evaluate the droplet transfer. The results show that although weld spatter produced along with the increase of nitrogen content, the stability of the droplet transfer and the signals of currents and voltages are improved. This is because to make deposited metal astenitized, the Ni content was reduced while the Mn content was increased with increasing nitrogen content, so that surface tension of the material was improved. And the adjustment of elements reduces the critical current of spray transfer so that the spray transfer is more likely to happen.
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    • References (7)
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