Fabrication and Numerical Analysis of Friction Stir Back Extruded Lightweight Magnesium Alloy Heat Pipes

Ramesh, Srivasupradha; Lakshminarayanan, A.K.; Raghavan, Yogesha; Harathi, Yashaswin

doi:10.4028/www.scientific.net/msf.979.129

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…Their results showed that the yield strength of the base material is 211 MPa, while that of the sample produced by the FSE is 152 MPa, which means a 28% reduction in the yield strength. Ramesh et al [16] produced heat tubes made of Ze41 magnesium alloy using FSE. Ze41 magnesium alloy was tested as a suitable material for making heat tubes because, in addition to being lightweight, magnesium tubes also have high thermal conductivity.…”

Section: Introductionmentioning

confidence: 99%

Production of LM28 Tubes by Mechanical Alloying and Using Friction Stir Extrusion

et al. 2023

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Friction Stir Extrusion (FSE), the focus of this research, is a process that has tremendous potential for shaping and improving the mechanical properties of the final product as well as the mechanical alloying. In this study, a cylindrical sample of LM13 aluminum, to which silicon powder is added, is extruded by the penetration of a tool and takes the shape of a tube. The microstructure of the aluminum tube produced is studied using a light microscope. Various tests, including compression and wear tests, are performed to evaluate the wear and mechanical properties of the tubes produced. Additionally, the process is simulated using the finite element method (FEM), and the strain and temperature distributions in the tubes are examined to understand the impact of tool advancing speed better. The strain and temperature are highest on the inner surface, where the tubes meet the tool. Moreover, as the advancing speed increases from 25 to 40 mm/min, the maximum temperature in the tubes increases from 350 to 400 °C. The surface quality of the samples is directly related to the advancing speed, so the surface quality improves as the advancing speed increases. The results obtained from the compression and wear tests show that the compression strength has increased by about 17%, and the wear resistance has improved by about 20%.

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Section: Introductionmentioning

confidence: 99%

Production of LM28 Tubes by Mechanical Alloying and Using Friction Stir Extrusion

et al. 2023

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Unraveling the role of micro-arc oxidation process factors on the corrosion resistance of magnesium alloy microtubes

Lakshminarayanan¹,

Vishwa²,

Selvam³

2023

Materials Today: Proceedings

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Influence of Microstructure on the Mechanical and Corrosion Response of a Friction Stir-Extruded WE43 Magnesium Rod

Al-Buainain

Shunmugasamy

Usman

et al. 2023

Metals

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Friction stir extrusion (FSE) was used with WE43 Mg to create a rod with a hybrid microstructure. The rod’s electrochemical corrosion response was characterized in Hank’s balanced salt solution at 37 ± 1 °C. The rod showed refined grains near the edge, while coarse grains were observed at the rod center. A larger fraction of precipitates was observed near the edge possibly hindering grain growth. The refined grains and the presence of a larger fraction of precipitates in the edge regions resulted in higher hardness owing to a confluence of precipitate hardening and solid–solution strengthening. Texture analysis of the rod cross-section exhibited a basal texture, perpendicular to the extrusion direction and populating the rod’s outer surface. In compression, the rod showed a near-base material yield strength (225.6 MPa) and a good combination of compressive strength (357.5 MPa) and ductility (~17.7%). The rod’s electrochemical corrosion response was sensitive to variations in the grain size, texture, and precipitate distribution between the rod core and edge regions. Removal of the edge region resulted in the formation of a more stable and protective film with an increase in the immersion period. The results from the study establish the ability of the FSE process to tailor the rod microstructure thereby influencing the mechanical properties and corrosion rate of Mg alloy.

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Fabrication and Numerical Analysis of Friction Stir Back Extruded Lightweight Magnesium Alloy Heat Pipes

Cited by 3 publications

References 6 publications

Production of LM28 Tubes by Mechanical Alloying and Using Friction Stir Extrusion

Production of LM28 Tubes by Mechanical Alloying and Using Friction Stir Extrusion

Unraveling the role of micro-arc oxidation process factors on the corrosion resistance of magnesium alloy microtubes

Influence of Microstructure on the Mechanical and Corrosion Response of a Friction Stir-Extruded WE43 Magnesium Rod

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