Compressive and Corrosion Properties of Lotus-Type Porous Mg-Mn Alloys Fabricated by Unidirectional Solidification

Zhou, Changyu; Liu, Yuan; Zhang, Huawei; Chen, Xiang; Li, Yanxiang

doi:10.1007/s11661-020-05732-1

Cited by 11 publications

(7 citation statements)

References 42 publications

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“…This means that the pore width can be controlled by changing the target value and optimizing simulation parameters, but realized pore width deviates significantly from the target value. As can be seen in Tables V-VII, the initial hydrogen concentration c 0 for the target values 4.0, 3.0, 2.5 and 2.0 mm is − 12.00, 12.00, 12.00 and 11.95 mol m , 3 respectively. This means that c 0 should be decreased to obtain narrow width pore with good shape.…”

Section: Resultsmentioning

confidence: 82%

“…This means that c 0 should be decreased to obtain narrow width pore with good shape. The surface of pore for the target value 2.5 mm with = − c 12.00 mol m 0 3 shows ripples as can be seen Fig. 12, while that for the target value 2.0 mm with = − c 11.95 mol m 0 3 is smooth as shown in Fig.…”

Section: Resultsmentioning

confidence: 82%

“…The interfacial energies were and Sieverts' coefficient of the liquid phase S l was − 0.69 mol m . 3 In order to simulate the unidirectional solidification process, a temperature gradient of − 9.7 K mm 1 was set, where the temperature at 10 mm from the solid-liquid interface to the liquid phase side was 903 K in the initial state and moved at a speed V as shown in Fig. 1.…”

Section: Sample A1 100%mentioning

confidence: 99%

“…Lotus-type Mg-Mn alloys have also been found to have reduced corrosion current and improve corrosion protection. 3 An attempt has also been made to apply through-hole rotor magnesium to hydrogen storage, where through holes are utilized to let hydrogen permeate the entire metal. 4 As for lotus-type semiconductors, lotus silicon has been produced 5 and it has been doped with B for application as a thermo-electric material.…”

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confidence: 99%

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Optimization of Pore Formation Process of Lotus Aluminum by Phase Field Simulation

et al. 2023

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We have used multi-phase field simulation to mimic the actual process of lotus aluminum production, i.e., unidirectional solidification of aluminum in a hydrogen atmosphere. We used PD control and PID control, conventional methods of feedback control, to control the pore width precisely in the simulation. The pore width was shown to decrease slowly in PID control due to the slow feedback of I-control, and PD control was shown to produce stable long pores, although the pore width became larger than the target pore width. The initial hydrogen concentration in the liquid, which was controlled by atmospheric hydrogen pressure, had a significant effect on the pore growth; the higher the hydrogen concentration, the thicker the pore width and vice versa. It was also clarified that the pore width and the elongation length of the pore took various values depending on the combination of PD parameters even if the same target value was set.

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Section: Resultsmentioning

confidence: 82%

Section: Resultsmentioning

confidence: 82%

Section: Sample A1 100%mentioning

confidence: 99%

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confidence: 99%

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Optimization of Pore Formation Process of Lotus Aluminum by Phase Field Simulation

et al. 2023

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“…The infiltration casting method is routinely used to fabricate porous Mg-based and Zn-based structures [25,[54][55][56]. Foaming with blowing agents and the Gasar process are very common manufacturing techniques for porous Mg and Mg alloys [5,29,30,51,57]. Also, spark plasma sintering was successfully used to produce Mg porous materials via the space holder method using sodium chloride particles and crystalline carbamide powder [58] and Zn porous materials using a low compacting pressure [59].…”

Section: Fabrication Methods Of Metallic Foams For Biomedical Applica...mentioning

confidence: 99%

Surface Modifications of Biodegradable Metallic Foams for Medical Applications

et al. 2020

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Significant progress was achieved presently in the development of metallic foam-like materials improved by biocompatible coatings. Material properties of the iron, magnesium, zinc, and their alloys are promising for their uses in medical applications, especially for orthopedic and bone tissue purposes. Current processing technologies and a variety of modifications of the surface and composition facilitate the design of adjusted medical devices with desirable mechanical, morphological, and functional properties. This article reviews the recent progress in the design of advanced degradable metallic biomaterials perfected by different coatings: polymer, inorganic ceramic, and metallic. Appropriate coating of metallic foams could improve the biocompatibility, osteogenesis, and bone tissue-bonding properties. In this paper, a comprehensive review of different coating types used for the enhancement of one or several properties of biodegradable porous implants is given. An outline of the conventional preparation methods of metallic foams and a brief overview of different alloys for medical applications are also provided. In addition, current challenges and future research directions of processing and surface modifications of biodegradable metallic foams for medical applications are suggested.

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Novel trends and recent progress on preparation methods of biodegradable metallic foams for biomedicine: a review

et al. 2021

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Compressive and Corrosion Properties of Lotus-Type Porous Mg-Mn Alloys Fabricated by Unidirectional Solidification

Cited by 11 publications

References 42 publications

Optimization of Pore Formation Process of Lotus Aluminum by Phase Field Simulation

Optimization of Pore Formation Process of Lotus Aluminum by Phase Field Simulation

Surface Modifications of Biodegradable Metallic Foams for Medical Applications

Novel trends and recent progress on preparation methods of biodegradable metallic foams for biomedicine: a review

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