Topic
Friction stir processing
About: Friction stir processing is a research topic. Over the lifetime, 2977 publications have been published within this topic receiving 62158 citations.
Papers published on a yearly basis
Papers
More filters
••
TL;DR: In this paper, Mg-base composites reinforced with 5 μm TiC particles are fabricated on the surface of a AZ31 Magnesium alloy sheet via friction stir processing (FSP).
21 citations
••
TL;DR: In this paper, a tool was manufactured from a tungsten alloy, which stabilizes the β phase and can locally suppress the β transus, and a post-processing α/β heat treatment was performed to demonstrate the microstructure effects of Tungsten dissolution.
Abstract: Significant tool wear manifested as submicron tungsten-rich particles was observed in the workpiece after friction stir processing (FSP) of investment cast Ti-6Al-4V on both the surface and in the bulk of the stir zone. The tool was manufactured from a tungsten alloy, which stabilizes the β phase and can locally suppress the β transus. A postprocessing α/β heat treatment was performed to demonstrate the microstructure effects of tungsten dissolution.
21 citations
••
TL;DR: In this paper, the influence of the number of FSP passes on electrochemical properties of the SZs in steels and the surface composites in 3.5% NaCl solution was analyzed via electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization tests.
21 citations
••
TL;DR: In this paper, the microstructure and texture characteristics of commercial pure Ti after friction stir processing (FSP) with a slow rotation speed were studied, and the results showed that the texture of SFZ in the pure Ti was affected by shear stress from the shoulder of stir tool and the c-axes of the grains in this zone were nearly parallel to the processing direction.
21 citations
••
TL;DR: The microstructural modification led to hardening and tensile strength improvement for the processed nanocomposite by ∼55% and 110%, respectively with respect to the annealed Al–Mg base alloy.
Abstract: Multipass friction-stir processing was employed to uniformly disperse multiwalled carbon nanotubes (MW-CNTs) within an Al-Mg alloy metal matrix. Decomposition of MW-CNTs occurs in situ as a result of solid-state chemical reactions, forming fullerene (C60) and aluminium carbide (Al4 C3 ) phases during reactive high temperature severe plastic processing. The effects of this decomposition on the microstructural features, dynamic restoration mechanisms and crystallographic microtextural developments are studied for the first time by using electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM) analysis. The formation of an equiaxed grain structure with an average size of ∼1.5 μm occurs within the stirred zone (SZ) under the influence of inclusions which hinder grain boundary migration via Zener-Smith pinning mechanisms during the discontinuous dynamic recrystallisation (DDRX). Formation of two strong Cubic and Brass microtextural components in the heat affected zone (HAZ) and thermomechanical affected zone (TMAZ) was noted as compared to the completely random and Cube components found in the base and SZ regions, respectively. The microstructural modification led to hardening and tensile strength improvement for the processed nanocomposite by ∼55% and 110%, respectively with respect to the annealed Al-Mg base alloy.
21 citations