Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Heat input effects on microstructure quenched and tempered steel ASTM A517 to stainless steel AISI 316L

  • Received : 2015.01.06
  • Accepted : 2015.02.10
  • Published : 2015.02.28
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Abstract

In this study, the effect of heat input on weld metal microstructure and the effects of dissimilar weld heat affected zone in quenched and tempered ASTM A517 on the stainless steel AISI 316L is investigated through the optimization of welding parameters. For this purpose, two welding techniques are used, tungsten-conventional gas and pulsed gas with weld wire ER 309MoL with Diameter 2.4 mm. Research showed that the grain size of the heat affected zone in pulsed welding is less compared with conventional welding; weld metal structure is fully austenitic, it has a finer structure in the pulsed method. Additionally, the growth of weld metal adjacent steel A517 is different from steel 316L. Further, investigation showed that the rate of dilution is less in the pulsed method and the impact energy is increased in each three regions of the weld metal and heat affected zones in the pulsed method; the fracture in the weld metal and heat affected zone of steel 316L is quite soft and it is semi-crispy in the heat affected zone of steel A517.

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References

  1. Tseng C, and Savage W., Weld.J., 50 (1971), 777
  2. Savge W, Lundin CD, and Hrubec RJ, Weld. J., 47 (1968), 420s
  3. Winsor FJ, in ASM Handbook, Vol.6: Welding, Brazing and Soldering, ASM International, Materials Park , OH, (1993), 662
  4. Norrish J., Advanced welding processes, Abington, Wood Head Publishing, (2006)
  5. Chadwick, GA, Metallography of Phase Transformations, Crane, Russak and Co., New York, (1972)
  6. Kou Sindo, Welding metallurgy, Second ed. Hoboken, New Jersey, John Wiley & Sons Inc., (2003)
  7. Shahhoseini H, Shamanian M, Kermanpour A., Charac -terization of microstructures and properties of Inconel 617/310 Stainless steel dissimilar welds, Mater Charact 62 (2011), 425-431 https://doi.org/10.1016/j.matchar.2011.02.003
  8. Iamboliev T., Interpretation of Phase Formation in Austenitic Stainless Steel Welds, Supplement to the Welding Society and the Welding Journal, December (2003)
  9. Chalmers B., Principle of Solidification, Wiley, New York, (1964), 117
  10. Rappa M, David SA, in Resent Trends in Welding Science and Technology Eds. S. A. David and J. M. Vitek, ASM International, Material Park, OH May (1989), 147
  11. Fleming MC, Solidification Processing, McGraw-Hill. New York, (1974)
  12. Sireesha M, Albert SK, Shankar V, Sundaresan S., A comparative evaluation of welding consumables for dissimilar welds between 316LN austenitic stainless steel and alloy 800, J. Nucl Master (2000), 279-76
  13. Dehmolaie R, Shamanian M, Kermanpour A., Microstructural characterization of dissimilar welds alloy 800 and HP heat -resistant steel, Mater Charact 59 (2008), 1447-54 https://doi.org/10.1016/j.matchar.2008.01.013
  14. Naffakh H., Dissimilar welding of AISI austenitic stainless steel to nickel -based alloy Inconel 657, Journal of Material Processing Thechnology 209 (2009), 3628-3639 https://doi.org/10.1016/j.jmatprotec.2008.08.019
  15. Depont JN, Banovic W, Marder AR., Microstructural evolution and weldability of dissimilar welds between a super austenitic stainless steel and nickel -based alloys, Weld. J., 82 (2003), 125-135