• Ajay Agrawal

In the last two decades, significant progress has been made in friction stir welding (FSW) of steels in every aspect of tool fabrication, microstructure control, and property evaluation. FSW of steels has reached a new level of technical maturity thanks to the development of reliable welding tools and precise control systems. Many engineering steels can create high-quality, lengthy welds. FSW has distinct benefits over conventional fusion welding, resulting in joints with superior characteristics. FSW is able to fabricate steel joints with excellent toughness and strength thanks to active control of the welding temperature and/or cooling rate. For example, unfavorable phase transformations in advanced steels can be avoided, and favorable phase fractions in the weld zone can be maintained, avoiding the typical property degradations associated with fusion welding. If phase changes do occur during the FSW of thick steels, microstructure and characteristics can be optimized by adjusting the heat input and post-weld cooling rate. This paper elaborates the applicability of the FSW tools and its applicability in various manufacturing process to solve the existing problems.

Carbon Steels, FSW, High Strength Low Alloy Steels, Oxide dispersion strengthened (ODS) steels, Stainless Steels

"Friction Stir Welding of Steels: A Review Paper", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 10, page no.667-672, October-2018, Available :http://www.jetir.org/papers/JETIRFH06112.pdf

"Friction Stir Welding of Steels: A Review Paper", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 10, page no. pp667-672, October-2018, Available at : http://www.jetir.org/papers/JETIRFH06112.pdf