https://cyberleninka.org/article/n/403409.pdf

A review of numerical analysis of friction stir welding

Friction stir based welding and processing technologies - processes, parameters, microstructures and applications: A review

Investigating effects of process parameters on microstructural and mechanical properties of Al5052/SiC metal matrix composite fabricated via friction stir processing

https://fac.ksu.edu.sa/sites/default/files/paper_jmpt.pdf

The influence of multi-pass friction stir processing on the microstructural and mechanical properties of Aluminum Alloy 6082

Composite manufacturing is one of the most imperative advances in the history of materials. Nanoparticles have been attracting increasing attention in the composite community because of their capability of improving the mechanical and physical properties of traditional fiber-reinforced composites. Friction stir processing (FSP) has successfully evolved as an alternative technique of fabricating metal matrix composites. The FSP technology has recently shown a significant presence in generation of ex situ and in situ nanocomposites. This review article essentially describes the current status of the FSP technology in the field of composite fabrication with the main impetus on aluminum and magnesium alloys.

Composite fabrication using friction stir processing—a review

Equal channel angle pressing (ECAP) of commercial purity aluminum (1050) was conducted using two processing routes, namely routes BC and C. The variation of hardness and yield strength with number of pressings was documented up to eight passes. Compression tests were used to evaluate post ECAP deformation response. Electron back scattered diffraction (EBSD) was used to obtain statistical information on the microstructure developed (cell size and misorientation angle) during ECAP and after combining ECAP with simple compression. The present results showed that first ECAP pass has resulted in enhancement of mechanical properties more than three times over the annealed condition. Further ECAP processing has resulted in slight improvement. The true stress–strain curve for ECAPed specimens tested under compression showed short transient region of large strain hardening rate followed by perfectly plastic behavior and strain softening. This behavior was discussed in details based on the microstructure study. © 2006 Elsevier B.V. All rights reserved.

Enhancement of mechanical properties and grain size refinement of commercial purity aluminum 1050 processed by ECAP

Friction stir processing: An effective technique to refine grain structure and enhance ductility

Microstructure and mechanical properties of friction stir welded 6082 AA in as welded and post weld heat treated conditions

Light composite materials based on Magnesium matrix reinforced with carbon or ceramic nanofibers were fabricated by powder metallurgy rout using high frequency induction heat sintering (HFIHS) technique. A comprehensive comparative study has been investigated on using ceramic nanofibers and carbon nanofibers as a fibers reinforced Magnesium metal matrix in order to evaluate the overall improvements in mechanical properties. Electrospinning technique followed by calcination process were used efficaciously to synthesize and fabricate the Titanium Oxide (TiO2) fibers and carbon fibers. Mg/nanofibers mixtures were prepared via powder metallurgy route using mechanical alloying technique by adding 1, 3, 5 and 10 wt% calcined nanofibers to Mg matrix. In inert atmosphere and room temperature, mixtures were initially processed using high energy ball milling for 15 + 15 min. The final bulk cylindrical samples were obtained by performing consolidation or sintering process using high frequency induction heat sintering furnace (HFIHS). Characterization of the sintered composites have been investigated using field emission scanning electron microscopes (FESEM), energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). While, hardness test and compression test were performed in order to evaluate the mechanical properties of the fabricated composites. The obtained result shows that, the ultimate compressive strength increased to 281 MPa at 5 wt% TiO2, which represent about 12.4% more than the pure Mg. Hardness improved up to 64.4% in case of using the ceramic nanofibers as reinforcement. While using CNFs as reinforcement to the Mg matrix, slightly deteriorates the mechanical properties.

Magdy M. El-Rayes

Papers

The influence of multi-pass friction stir processing on the microstructural and mechanical properties of Aluminum Alloy 6082

Enhancement of mechanical properties and grain size refinement of commercial purity aluminum 1050 processed by ECAP

Friction stir processing: An effective technique to refine grain structure and enhance ductility

Microstructure and mechanical properties of friction stir welded 6082 AA in as welded and post weld heat treated conditions

Ceramic nanofibers versus carbon nanofibers as a reinforcement for magnesium metal matrix to improve the mechanical properties