Development of a new integrated severe plastic deformation method

Khandani, S. T.; Faraji, Ghader; Torabi, Hamidreza

doi:10.1080/02670836.2019.1710926

Cited by 3 publications

(2 citation statements)

References 31 publications

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“…The strengthening effect is attributed to the dispersion of Mg-1Zn intermetallic phases and Zn particles in the alloy. 40 Moreover, studies have indicated that Mg-1Zn alloys with less than 4% Zn exhibit no formation of micropores or excessive eutectic phase, resulting in improved mechanical characteristics compared to pure Mg. 41,42 Previous findings have demonstrated that the bimodal structure of the alloy significantly influences its mechanical properties, particularly elongation to failure. The bimodal grain distribution in Mg-1Zr, Mg-1Zn and Mg-1HA alloys plays a crucial role in achieving higher elongation to failure than pure Mg and other alloys.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Processing of different Mg-based multiphase alloys via a combined severe plastic deformation

Torabi,

Hosseini,

Siahsarani

et al. 2024

Materials Science and Technology

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In this study, cyclic extrusion compression angular pressing-forward extrusion was employed to develop binary magnesium-based multiphase alloys, and subsequently analysed the microstructural, mechanical and corrosional properties of the resulting samples. The findings demonstrate that the inclusion of alloying elements in the multiphase alloys significantly enhances their microstructural, mechanical and corrosional properties. Compared to pure Mg samples fabricated using the same method, the multiphase alloys produced by this technique exhibit finer grain structures. Mechanical analysis indicates that these multiphase alloys possess higher yield and ultimate strength compared to pure magnesium. Corrosion testing reveals that all produced alloys outperform pure magnesium in various aspects. Particularly, Mg–1Zn and Mg–1Mn alloys exhibit exceptional corrosion resistance in immersion, mass loss and polarisation tests.

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Section: Mechanical Propertiesmentioning

confidence: 99%

Processing of different Mg-based multiphase alloys via a combined severe plastic deformation

Torabi,

Hosseini,

Siahsarani

et al. 2024

Materials Science and Technology

Self Cite

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“…Several investigations were made on materials undergoing CGP (Nazari & Honarpisheh, 2019;Khodabakhshi et al, 2010;Kumar & Vedrtnam, 2021). Post-deformation annealing and cryo-rolling of Al-Mg alloys undergoing the CGP process enhanced the strength, ductility, and fracture toughness (Tanuja et al, 2022;Khandani et al, 2020). To determine the optimal die geometry (like the angle of the groove, the width of the groove, and the friction coefficient), a modified Taguchi technique with the data from the elastoplastic finite element analysis was used (Anantha et al, 2023a;Anantha et al, 2023b;Sahiti et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Optimal Constrained Groove Pressing Process Parameters Applying Modified Taguchi Technique and Multi-Objective Optimization

Anantha,

Koneru,

Pyatla

et al. 2024

JST

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Most engineering problems are complicated, and developing mathematical models for such problems requires understanding the phenomena through experiments. It is well known that as processing parameters with assigned levels increase, so does the number of experiments. By minimizing the number of experiments, Taguchi’s method of experimental design will help to furnish the idea of full factorial experimental design. Taguchi’s method is more appropriate for single-objective optimization problems and needs modifications while dealing with multi-objective optimization problems. Aluminum alloys are in great demand in today’s automotive and aerospace sectors due to their low density, good corrosion resistance, and excellent machinability. The material is subjected to a constrained groove pressing (CGP) process to obtain microstructural grain refinement with enhanced mechanical behavior. This paper considers AA6061 material having major alloys such as silicon and magnesium. For this work, 3 CGP process parameters (viz., displacement rate, plate thickness and number of passes) are assigned 3 levels to each parameter, acquired the test data, viz., grain size (gs), micro hardness (hs), and tensile strength (ult) based on L9 orthogonal array of Taguchi. Using a modified version of Taguchi’s methodology, it is possible to estimate the range of grain size (gs), micro hardness (hs), and tensile strength (σult) for effective combinations of the CGP processing parameters and validate the results with existing test data. A more dependable and simpler multi-objective optimization procedure is used to choose the optimal CGP processing parameters.

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A comprehensive review on equal channel angular pressing of bulk metal and sheet metal process methodology and its varied applications

Sadasivan¹,

Balasubramanian²,

Rameshbapu³

2020

Journal of Manufacturing Processes

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Development of a new integrated severe plastic deformation method

Cited by 3 publications

References 31 publications

Processing of different Mg-based multiphase alloys via a combined severe plastic deformation

Processing of different Mg-based multiphase alloys via a combined severe plastic deformation

Optimal Constrained Groove Pressing Process Parameters Applying Modified Taguchi Technique and Multi-Objective Optimization

A comprehensive review on equal channel angular pressing of bulk metal and sheet metal process methodology and its varied applications

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