Magnesium stents manufacturing: Experimental application of a novel hybrid thin-walled investment casting approach

Lopes, V.; Puga, Hélder; Gomes, I. V.; Peixinho, Nuno; Teixeira, José Carlos; Barbosa, J.

doi:10.1016/j.jmatprotec.2021.117339

Cited by 14 publications

(2 citation statements)

References 20 publications

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“…Among magnesium-based materials, magnesium nanocomposites have emerged as highly promising materials. Numerous studies have demonstrated that incorporating nanoparticles into magnesium and its alloys can significantly enhance its thermal properties, static and dynamic responses, and machining and wear properties [2,8,[11][12][13][14][15][16][17][18]. The literature review indicates that no prior work has so far been conducted to explore the effects of cryogenic treatment on the response of magnesium nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Shallow (−20 °C) and Deep Cryogenic Treatment (−196 °C) to Enhance the Properties of a Mg/2wt.%CeO2 Nanocomposite

Gupta,

Parande,

Gupta

2024

Technologies

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Magnesium and its composites have been used in various applications owing to their high specific strength properties and low density. However, the application is limited to room-temperature conditions owing to the lack of research available on the ability of magnesium alloys to perform in sub-zero conditions. The present study attempted, for the first time, the effects of two cryogenic temperatures (−20 °C/253 K and −196 °C/77 K) on the physical, thermal, and mechanical properties of a Mg/2wt.%CeO2 nanocomposite. The materials were synthesized using the disintegrated melt deposition method followed by hot extrusion. The results revealed that the shallow cryogenically treated (refrigerated at −20 °C) samples display a reduction in porosity, lower ignition resistance, similar microhardness, compressive yield, and ultimate strength and failure strain when compared to deep cryogenically treated samples in liquid nitrogen at −196 °C. Although deep cryogenically treated samples showed an overall edge, the extent of the increase in properties may not be justified, as samples exposed at −20 °C display very similar mechanical properties, thus reducing the overall cost of the cryogenic process. The results were compared with the data available in the open literature, and the mechanisms behind the improvement of the properties were evaluated.

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Section: Introductionmentioning

confidence: 99%

Comparison of Shallow (−20 °C) and Deep Cryogenic Treatment (−196 °C) to Enhance the Properties of a Mg/2wt.%CeO2 Nanocomposite

Gupta,

Parande,

Gupta

2024

Technologies

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“…Magnesium alloys are widely used in many industries, such as the automotive, space, health, or energy fields (Lopes et al, 2022;Persaud-Sharma & McGoron, 2012;Prasad et al, 2017;Tan & Ramakrishna, 2021). Increasingly, emerging Mg alloys are attracting attention due to their mixture of remarkable properties, such as high specific strength or biotolerance (Mizelli-Ojdanic et al, 2021;Ojdanic et al, 2020;Wang et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Texture evolution in Mg during rolling with a change of deformation path - a modeling approach

Sułkowski¹

2022

cmms

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The weakening of strong textures in Mg alloys is a crucial factor in obtaining good quality final products that are less anisotropic. Considerable attention has been focused on experiments to find the optimal chemical composition of alloys or processing conditions. However, to reduce time-consuming experiments, texture simulations can help in specifying future research directions. In the present work, the texture evolution in rolled Mg and its alloys was studied using the viscoplastic self-consistent model. The texture simulations presented in the study cover unidirectional rolling, reverse rolling, and cross rolling of Mg and its alloys to check if the change in deformation path has an impact on the activation of non-basal slip systems. The results obtained in the study may help to design the best processing technology and reduce the mechanical anisotropy of magnesium alloys. Slip systems such as basal, prismatic, and pyramidal were taken into consideration. To reflect the effect of alloying elements on hardening, different values for critical resolved shear stress were considered. Pole figures and slip system activity were investigated to understand the texture evolution during rolling as the deformation path changes. It was found that cross rolling may be the most effective processing technology to reduce strong textures during the rolling of Mg alloys. To activate non-basal systems, critical resolved shear stresses and the Schmid factor must be modified. The former can be changed by increasing the processing temperature, proper alloying elements, or change in the strain rate sensitivity; the latter by changing the deformation path.

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Improvement of Joint Strength of TC4/AZ91D Bimetal in Solid-liquid Compound Casting Process Using Cu-Ni Composite Interlayer

Wen,

Zheng,

Liu

2024

Met. Mater. Int.

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Magnesium stents manufacturing: Experimental application of a novel hybrid thin-walled investment casting approach

Cited by 14 publications

References 20 publications

Comparison of Shallow (−20 °C) and Deep Cryogenic Treatment (−196 °C) to Enhance the Properties of a Mg/2wt.%CeO2 Nanocomposite

Comparison of Shallow (−20 °C) and Deep Cryogenic Treatment (−196 °C) to Enhance the Properties of a Mg/2wt.%CeO2 Nanocomposite

Texture evolution in Mg during rolling with a change of deformation path - a modeling approach

Improvement of Joint Strength of TC4/AZ91D Bimetal in Solid-liquid Compound Casting Process Using Cu-Ni Composite Interlayer

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