Achieving gradient ultrafine-grained heterostructure by friction stir-assisted incremental sheet forming

Li, Meng; Wu, Renhao; An, Dayong

doi:10.1016/j.jmatprotec.2022.117654

Cited by 9 publications

(4 citation statements)

References 36 publications

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“…Nowadays, many attempts have been devoted to enhance strength, plasticity, corrosion, hardness and others simultaneously by developing specific heterostructure [61][62][63]. These modifications mainly include gradient [64], lamellar [65], layer [66], harmonic [67], nano-domain [68], nano-twinned grains [28], bio-grade [69], porous structure, and heterointegrated structure of different biomaterials/ECM, cell types, and bioactive factors. The commonality of these specific structure is that they all made of heterogeneous zones with disparate mechanical, physical and chemical characteristics.…”

Section: Structural Features Of Heterostructurementioning

confidence: 99%

“…In addition, materials with gradient structure exhibit superior synergies of mechanical and biological performances compared to homogeneous component or single structure, which demonstrate great potential in specific functional application (figure 2(c)). For instance, bioimplants can better serve mechanical and biological requirements by mimicking the gradient of the target tissue, thus promoting tissue regeneration or reconstruction [64]. Such a gradient bioscaffold should afford the biological platform and environment like that in vivo for the communications of homotypic and heterotypic human cells, as well as the integrations of cell-matrix, as shown in the figure 2(g).…”

Section: Structural Features Of Heterostructurementioning

confidence: 99%

Section: Additive Manufacturingmentioning

confidence: 99%

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Additive manufacturing of promising heterostructure for biomedical applications

Shuai

Xiong

et al. 2023

Int. J. Extrem. Manuf.

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As a new generation of materials/structures, heterostructure is characterized by heterogeneous zones with dramatically different mechanical, physical or chemical properties. This endows heterostructure with unique interfaces, robust architectures, and synergistic effects, making it a promising option as advanced biomaterials for the highly variable anatomy and complex functionalities of individual patients. However, the main challenges of developing heterostructure lie in the control of crystal/phase evolution and the distribution/fraction of components and structures. In recent years, additive manufacturing techniques have attracted increasing attention in developing heterostructure due to the unique flexibility in tailored structures and synthetic multimaterials. This review focuses on the additive manufacturing of heterostructure for biomedical applications. The structural features and functional mechanisms of heterostructure are summarized. The typical material systems of heterostructure, mainly including metals, polymers, ceramics, and their composites, are presented. And the resulting synergistic effects on multiple properties are also systematically discussed in terms of mechanical, biocompatible, biodegradable, antibacterial, biosensitive and magnetostrictive properties. Next, this work outlines the research progress of additive manufacturing employed in developing heterostructure from the aspects of advantages, processes, properties, and applications. This review also highlights the prospective utilization of heterostructure in biomedical fields, with particular attention to bioscaffolds, vasculatures, biosensors and biodetections. Finally, future research directions and breakthroughs of heterostructure are prospected with focus on their more prospective applications in infection prevention and drug delivery.

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Section: Structural Features Of Heterostructurementioning

confidence: 99%

Section: Structural Features Of Heterostructurementioning

confidence: 99%

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Additive manufacturing of promising heterostructure for biomedical applications

Shuai

Xiong

et al. 2023

Int. J. Extrem. Manuf.

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“…Praveen K. et al [18] used double-sided incremental forming to improve the forming accuracy by customizing the tool to apply specific support forces on the bottom surface. Li M. et al [19] used frictional warming of the tool head to promote sheet forming and improve the strength and ductility of the formed parts.…”

Section: Introductionmentioning

confidence: 99%

Hydrostatic support and ultrasound-assisted SPIF error and process parameter optimization study

Jing

Zheng²,

Yang³

et al. 2023

Preprint

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To solve the problems of overhanging back of the part and difficult forming and to improve the accuracy of single-point incrementally formed parts, considering many error influencing factors, this paper introduces hydrostatic support and ultrasonic vibration-assisted technology into single-point incremental forming and investigates the influence of process parameters on the geometric shape error of formed parts under the conditions of hydrostatic support and ultrasonic vibration, taking the conical table part as the object. A four-factor, three-level process experiment with static pressure, amplitude, frequency, and tool head diameter as variables was designed using Box-Behnken Design, modeled by the least squares method in the response surface method, and optimized by the satisfaction function. The results show that the static pressure support and ultrasonic vibration can effectively reduce the error of the part, and the error is minimized when the static pressure value is 0.058 MPa, the amplitude is 0.019 mm, the vibration frequency is 25 KHz, and the tool head diameter is 15.7 mm. The method and conclusions presented in this paper can provide a reference for the study of single-point increments of hydrostatic support-ultrasonic vibration.

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