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Microstructural Aspects of 304 Stainless Steel Weld Joints with the Simultaneous Application of Electromagnetic Vibration

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Abstract

In this research, the microstructural aspects of different zones of ASTM 304 stainless steel weld joints via and without application of electromagnetic vibration under the voltage range of 0–30 V were studied. The microstructural investigations were carried out by optical microscopy and scanning electron microscopy. The results showed that by increasing electromagnetic vibration, the number and length of columnar dendrites are decreased and that the microstructure shifts from columnar to equiaxed dendrites. By applying electromagnetic vibration, the average length of dendrites was decreased from 570.80 to 58.40 μm for ER309L and from 637.84 to 58.5 μm for ER310 weld metals. The width of the formed unmixed zone near the fusion line was decreased, and in some zones it disappeared. In addition, the weld metal dilution was reduced to 24.2 and 13% for ER309L and ER310, respectively. The ferrite amount of weld metal for ER309L increased, while that for ER310 was partially decreased.

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Authors and Affiliations

  1. Material Science and Engineering Department, Faculty of Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran

    Mohammad Amin Ghadam Dezfuli, Reza Dehmolaei & Seyed Reza Alavi Zaree

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  1. Mohammad Amin Ghadam Dezfuli
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  2. Reza Dehmolaei
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  3. Seyed Reza Alavi Zaree
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Correspondence to Reza Dehmolaei.

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Ghadam Dezfuli, M.A., Dehmolaei, R. & Alavi Zaree, S.R. Microstructural Aspects of 304 Stainless Steel Weld Joints with the Simultaneous Application of Electromagnetic Vibration. Metallogr. Microstruct. Anal. 8, 226–232 (2019). https://doi.org/10.1007/s13632-019-00521-8

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