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.
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TL;DR: In this paper, a large-area bulk ultrafine grained (UFG) pure Cu was successfully prepared by multiple-pass overlapping friction stir processing (FSP) under additional rapid cooling.
52 citations
TL;DR: In this article, the effect of different shoulder diameters to pin diameter (D/d ) ratio on the tensile properties and hardness of the friction stir processed material were evaluated and correlated with the macro and microstructure signatures.
52 citations
TL;DR: In this paper, a computation-efficient process model is developed using ABAQUS/Explicit based on coupled Eulerian-Lagrangian (CEL) formulation to simulate FSP of aluminum alloy 5083.
Abstract: Friction stir processing (FSP) is a friction stir-based material processing method for enhancement of material microstructural and surface properties. As FSP is a multi-physics problem coupled with severe plastic deformation, material flow, heat flow, and microstructure evolution, modeling of the FSP process can be very complicated and challenging. Few research work has been reported on modeling and simulations of FSP for material modification. In this study, a computation-efficient process model is developed using ABAQUS/Explicit based on coupled Eulerian-Lagrangian (CEL) formulation to simulate FSP of aluminum alloy 5083. The three-dimensional (3D) finite element model simulates the entire process of FSP including tool plunging, dwelling, and stirring phases. Simulations are performed to evaluate the effects of tool-rotational speed and tool pin profile during the FSP process. The computational efficiency of the developed model is also evaluated in comparison with other existing models for friction stir–welding processes. FSP experiment is performed with measurements of process force and temperature for model validation. This study shows that the CEL model can be a powerful numerical tool to simulate the complex process mechanics and optimize the FSP process parameters for industrial applications.
52 citations
TL;DR: Friction stir processing (FSP) is appliedin mixing elemental thin sheets of Mg, Al, and Zn in various portions, resulting in hardintermetallic alloys with Vickers hardness in excess of 350 as mentioned in this paper.
52 citations
TL;DR: In this paper, the material flow behavior during friction stir channeling (FSC) is studied and the magnitude and direction of the net forces acting on the tool are analyzed to understand material flow behaviour and the occurrence of channels in the nugget.
52 citations