Comparison of microstructure and mechanical behavior of Ti-35Nb manufactured by laser powder bed fusion from elemental powder mixture and prealloyed powder

Wang, J.C.; Liu, Yujing; Liang, Shun-Xing; Zhang, Y.S.; Wang, Lei; Sercombe, T.B.; Zhang, L.C.

doi:10.1016/j.jmst.2021.07.021

Cited by 54 publications

(11 citation statements)

References 63 publications

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“…Most of the research on Bio-HEA biocompatibility currently focuses on evaluating the cytocompatibility of HEA alloys by the direct cell contact method ( Wang J. C. et al, 2022 ; Wei et al, 2022a ; Guo et al, 2022 ). The cytocompatibility of alloy materials includes cell adhesion ability and cytotoxicity ( Ma N. et al, 2020 ); cell adhesion is essential to maintain the stability of tissue structure and is a regulator of cell motility and function, with significant effects on cell proliferation and differentiation ( Yang et al, 2011 ).…”

Section: Biocompatibilitymentioning

confidence: 99%

Bio-high entropy alloys: Progress, challenges, and opportunities

Feng

Tang

Liu

et al. 2022

Front. Bioeng. Biotechnol.

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With the continuous progress and development in biomedicine, metallic biomedical materials have attracted significant attention from researchers. Due to the low compatibility of traditional metal implant materials with the human body, it is urgent to develop new biomaterials with excellent mechanical properties and appropriate biocompatibility to solve the adverse reactions caused by long-term implantation. High entropy alloys (HEAs) are nearly equimolar alloys of five or more elements, with huge compositional design space and excellent mechanical properties. In contrast, biological high-entropy alloys (Bio-HEAs) are expected to be a new bio-alloy for biomedicine due to their excellent biocompatibility and tunable mechanical properties. This review summarizes the composition system of Bio-HEAs in recent years, introduces their biocompatibility and mechanical properties of human bone adaptation, and finally puts forward the following suggestions for the development direction of Bio-HEAs: to improve the theory and simulation studies of Bio-HEAs composition design, to quantify the influence of composition, process, post-treatment on the performance of Bio-HEAs, to focus on the loss of Bio-HEAs under actual service conditions, and it is hoped that the clinical application of the new medical alloy Bio-HEAs can be realized as soon as possible.

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Section: Biocompatibilitymentioning

confidence: 99%

Bio-high entropy alloys: Progress, challenges, and opportunities

Feng

Tang

Liu

et al. 2022

Front. Bioeng. Biotechnol.

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“…Ti-Nb alloys are excellent candidates for biomedical applications owing to their superior biocompatibility. Mixing Ti-Nb and pre-alloyed Ti-Nb powder is widely used for LPBF [110][111][112]. Wang et al [113] studied Nb addition for suppressing the martensitic transformation of LPBF Ti-xNb (x = 0, 15, 25 and 45 at%) alloys.…”

Section: Isomorphous β-Ti Alloysmentioning

confidence: 99%

Recent innovations in laser additive manufacturing of titanium alloys

Su,

Jiang,

Teng

et al. 2024

Int. J. Extrem. Manuf.

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Titanium (Ti) alloys are widely used in frontier fields like aerospace and biomedical engineering. Laser additive manufacturing (LAM), as an innovative technology, is the key driver for the development of Ti alloys. Despite the significant advancements in LAM of Ti alloys, there remain challenges that need further research and development efforts. To recap the potential of LAM high-performance Ti alloy, this article systematically reviews LAM Ti alloys with up-to-date information on process, materials, and properties. Several feasible solutions to advance LAM Ti alloys were reviewed, including intelligent process parameters optimization, LAM process innovation with auxiliary fields and novel Ti alloys customization for LAM. The auxiliary energy fields (e.g., thermal, acoustic, mechanical deformation and magnetic fields) that can be applied during LAM Ti alloys affect the melt pool dynamics and solidification behaviour, altering microstructures and mechanical performances. Different kinds of novel Ti alloys customized for LAM, like peritectic α-Ti, eutectoid (α+β)-Ti, hybrid (α+β)-Ti, isomorphous β-Ti and eutectic β-Ti alloys are reviewed in detail. Furthermore, machine learning in accelerating the LAM process optimization and new materials development is also outlooked. The review summarizes the material properties and performance envelops and benchmarks the research achievements in LAM of Ti alloys. In addition, the perspectives and further trends in LAM of Ti alloys are also highlighted.

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“…6 The incorporation of Nb significantly reduces the elastic modulus, thereby improving shape memory recovery, augmenting corrosion resistance, and exhibiting superior biocompatibility. 7 For instance, the Ti−24Nb−4Zr−8Sn alloy (abbreviated as Ti2448) possesses a lower elastic modulus and superior fatigue resistance when compared to Ti−6Al−4V. 8 While β-type titanium alloys exhibit mechanical properties closer to those of human bone, the solidly manufactured implants still possess an elastic modulus higher than that of human bone.…”

Section: Introductionmentioning

confidence: 99%

“…Among these, the addition of niobium (Nb) has emerged as a widely favored enhancement . The incorporation of Nb significantly reduces the elastic modulus, thereby improving shape memory recovery, augmenting corrosion resistance, and exhibiting superior biocompatibility . For instance, the Ti–24Nb–4Zr–8Sn alloy (abbreviated as Ti2448) possesses a lower elastic modulus and superior fatigue resistance when compared to Ti–6Al–4V .…”

Section: Introductionmentioning

confidence: 99%

Bamboo-Inspired Porous Scaffolds for Advanced Orthopedic Implants: Design, Mechanical Properties, and Fluid Characteristics

Chen,

Liu,

et al. 2024

ACS Biomater. Sci. Eng.

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In orthopedic implant development, incorporating a porous structure into implants can reduce the elastic modulus to prevent stress shielding but may compromise yield strength, risking prosthesis fracture. Bamboo’s natural structure, with its exceptional strength-to-weight ratio, serves as inspiration. This study explores biomimicry using bamboo-inspired porous scaffolds (BISs) resembling cortical bone, assessing their mechanical properties and fluid characteristics. The BIS consists of two 2D units controlled by structural parameters α and β. The mechanical properties, failure mechanisms, energy absorption, and predictive performance are investigated. BIS exhibits mechanical properties equivalent to those of natural bone. Specifically, α at 4/3 and β at 2/3 yield superior mechanical properties, and the destruction mechanism occurs layer by layer. Besides, the Gibson–Ashby models with different parameters are established to predict mechanical properties. Fluid dynamics analysis reveals two high-flow channels in BISs, enhancing nutrient delivery through high-flow channels and promoting cell adhesion and proliferation in low-flow regions. For wall shear stress below 30 mPa (ideal for cell growth), α at 4/3 achieves the highest percentage (99.04%), and β at 2/3 achieves 98.46%. Permeability in all structural parameters surpasses that of human bone. Enhanced performance of orthopedic implants through a bionic approach that enables the creation of pore structures suitable for implants.

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Comparison of microstructure and mechanical behavior of Ti-35Nb manufactured by laser powder bed fusion from elemental powder mixture and prealloyed powder

Cited by 54 publications

References 63 publications

Bio-high entropy alloys: Progress, challenges, and opportunities

Bio-high entropy alloys: Progress, challenges, and opportunities

Recent innovations in laser additive manufacturing of titanium alloys

Bamboo-Inspired Porous Scaffolds for Advanced Orthopedic Implants: Design, Mechanical Properties, and Fluid Characteristics

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