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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.


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Journal ArticleDOI
TL;DR: A novel pathway to control cavitation erosion-corrosion by tailoring the surface properties using submerged friction stir processing (FSP), a severe plastic deformation process that could be potentially transformative in designing robust materials for hydro-dynamic applications.

37 citations

Journal ArticleDOI
TL;DR: In this paper, the effect of friction stir processing (FSP) on the spatial homogeneity of SiC particles in discontinuously reinforced aluminum (DRA) metal matrix composites is investigated.
Abstract: The effect of friction stir processing (FSP) on the spatial homogeneity of SiC particles in discontinuously reinforced aluminum (DRA) metal matrix composites is investigated. DRA composites were produced with microstructures having controlled degrees of clustering, by carefully varying the particle size ratios (PSR) of the powders used in their fabrication. In this contribution, the spatial heterogeneity of these DRA microstructures is characterized by careful measurement of statistical two-point correlation functions and also via the multi-scalar analysis of area fractions (MSAAF) technique, at length scales up to 1 mm, by the use of high-resolution, large-area image montaging. These complimentary techniques yield similar results for the spatial heterogeneity of the DRA materials, both before and after FSP. The microstructural data suggest that significant microstructural modifications are imparted by FSP, including reductions in the measured spatial heterogeneity and microstructural anisotropy, as well as re-orientation of the reinforcement particles due to the stirring action. These microstructural modifications have a strong influence on the experimentally-measured tensile strengths and ductilities of the DRA composites. A general relationship exists between the measured tensile ductility and the microstructural parameters of homogeneous length scale ( L H ) and cluster size ( d clus ), independent of the DRA processing history.

37 citations

Journal ArticleDOI
TL;DR: In this article, a nanograin layer was formed on the surface of pure copper via friction stir processing (FSP), and the results showed that the micro-hardness of the nanostructured layer was about three times that of the base material.
Abstract: In the present work, a nanostructured layer was formed on the surface of pure copper via friction stir processing (FSP). The surface nanostructuring can be of significant importance in terms of surface-dependent properties such as fatigue, wear, coating, and even corrosion. During FSP, the applied rotating and traverse speeds were 1600 rpm and 50 mm/min, respectively. The results show that a nanograin layer of about 90 µm thick, having the grain size of 50–200 nm, was formed on the surface of pure copper. The nanostructured layer was then characterized using atomic force microscopy (AFM), field emission scanning electron microscopy (FESEM), as well as scanning electron microscopy (SEM). The microhardness of nanograin layer (175 Hv) was about three times that of the base material (60 Hv).

37 citations

Journal ArticleDOI
TL;DR: In this paper, the performance of the SPS-sintered materials was studied as a function of the reinforcement size and relative percentage of the materials' relative percentage in the starting materials.

37 citations

Journal ArticleDOI
TL;DR: In this paper, different pin eccentricities were applied to the friction stir processing of Al-5052 alloy and the results showed that pin eccentricity enhances material flow and refines grains of the stir zone.
Abstract: Stir tools with different pin eccentricities were applied to the friction stir processing of Al-5052 alloy. Results show that pin eccentricity enhances material flow and refines grains of stir zone. The stir zone produced by a stir tool with 0.4 mm pin eccentricity performs the highest hardness and yield strength, attributing to the enhanced grain-boundary strengthening.

37 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023236
2022443
2021356
2020322
2019349
2018261