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: Friction stir processing (FSP) is a novel metal-working technique that provides microstructural modification and control in the near-surface layer of metal components as discussed by the authors, which resulted in the break-up of coarse dendrites and secondary phases, refinement of matrix grains, dissolution of precipitates and elimination of porosity, thereby improving the mechanical properties of the castings significantly.
234 citations
TL;DR: In this article, surfaces of A319 and A356 castings were treated by friction stir processing to reduce porosity and to create more uniform distributions of second-phase particles, which increased the ultimate tensile strengths, ductilities, and fatigue lives of both alloys.
230 citations
TL;DR: In this paper, the microstructural properties in terms of grain structure and second phase particles distribution, and also the mechanical properties of the processed zone were addressed with respect to the number of passes and traverse speeds.
229 citations
25 Oct 2003-Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
TL;DR: In this article, a novel technique for producing high-strain-rate superplastic (HSRS) microstructure via friction stir processing (FSP) in a commercial 2024 Al has been demonstrated.
Abstract: A novel technique for producing high-strain-rate-superplastic (HSRS) microstructure via friction stir processing (FSP) in a commercial 2024 Al has been demonstrated. A maximum ductility of ∼525% has been achieved at a strain rate of 10 −2 s −1 and 430 °C. Current results suggest that friction stir processing can be developed as a simple yet effective technique for producing microstructure amenable for superplasticity at high strain rates and/or lower temperatures and at lower flow stresses.
223 citations
TL;DR: In this paper, the fine-grained structure in friction-stir processed aluminum has been studied using a rotating-tool plunge and extract technique, and the initial sizes of newly recrystallized grains are on the order of 25-100 nm.
221 citations