Influence of Friction Stir Processing on Wear, Corrosion, and Fracture Toughness Behavior of 2507 Super Duplex Stainless Steel

Friction Stir Processing Influence on Microstructure, Mechanical, and Corrosion Behavior of Steels: A Review

“…It was revealed that the stir zone produced by two passes of FSW had higher fracture toughness values than that of the stir zone of single-pass weld samples, which in turn was superior to that of the BM. The influence of FSP on fracture toughness of 2507 SDSS [ 17 ] was evaluated using cubic boron nitride and 30% W-Re tool at 400 rpm and 100 mm/min speed. The fracture toughness was evaluated on compact tension specimen according to the J-integral approach of ASTM standard E1820-20.…”

“…The corrosion resistance of FSPed tool steel was found to be enhanced due to a high fraction of low-angle grain boundaries except for samples processed at 800 rpm due to less homogenous distribution of carbide particles. Another steel type 2507 SDSS was also analyzed for corrosion behavior [ 17 ] after FSP using PDP and linear polarization resistance (LPR) tests in 3.5 wt% NaCl medium. The results of these tests showed improvement in corrosion resistance of FSPed SDSS by about 86%, owing to the presence of an oxide layer containing Cr, which is formed by an increase in grain boundary density in the FSPed zone.…”

“…All these factors have an impact on the behavior of the material as they influence the grain structure [ 15 ]. By refining the grain microstructure, mechanical properties such as strength, hardness, fracture toughness, fatigue behavior, wear, and corrosion resistance can be altered [ 16 , 17 , 18 ]. In this article, a comprehensive review is undertaken to investigate the influence of FSP on the behavior of steels.…”

The mechanical properties of AA6082/AA1050 dissimilar joints subjected to multi-pass friction stir processing

“…FSP is known to be the best tool to yield refined grains and microstructural defects elimination and thereby enhancing tribological properties of a metal [2,3]. The earlier works have demonstrated that FSP has the capability of improving the mechanical properties of as-cast Al-based alloys due to significant grain size reduction [4][5][6][7][8]. It has been reported that FSP technique plays a significant role in creating microstructure that contains fine grains with large grain boundary disorientations and high angle grain boundaries and these features are influential on mechanical behavior of metals [9,10].…”