Improved mechanical properties of the new Ti-15Ta-xZr alloys fabricated by selective laser melting for biomedical application

Lu, Yan; Yuan, Youwei; Ouyang, Linjun; Li, Hong; Mirzasadeghi, Alireza; Li, Li

doi:10.1016/j.jallcom.2016.07.002

Cited by 69 publications

(36 citation statements)

References 33 publications

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“…At present, design methods for implant part are mostly based on CT (computed tomography) scan, reverse reconstruction, or forward modeling in design software. Implant parts prepared by traditional design and manufacturing methods generally have problems of high stiffness and heavy selfweight, and stress shielding effect would occur between the parts and the host bone after implantation, which may cause loosening of the implant and lead to reducing implant life directly [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Design and Performance Evaluation of Porous Titanium Alloy Structures for Bone Implantation

Shi

Liang

Jiang³

et al. 2019

Mathematical Problems in Engineering

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Implant parts prepared by traditional design and manufacturing methods generally have problems of high stiffness and heavy self-weight, which may cause stress shielding effect between the implanted part and the host bone, and eventually cause loosening of the implanted part. Based on the implicit surface function equations, several porous implant models with controlled pore structure were designed. By adjusting the parameters, the apparent elastic modulus of the porous implant model can be regulated. The biomechanical simulation experiment was performed using CAE software to simulate the stress and elastic modulus of the designed models. The experimental results show that the apparent elastic modulus of the porous structure scaffold is close to that of the bone tissue, which can effectively reduce the stress shielding effect. In addition, the osseointegration status between the implant and the host bone was analyzed by implant experiment. The pushout test results show that the designed porous structures have a good osseointegration effect.

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Section: Introductionmentioning

confidence: 99%

Design and Performance Evaluation of Porous Titanium Alloy Structures for Bone Implantation

Shi

Liang

Jiang³

et al. 2019

Mathematical Problems in Engineering

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“…Until now, a variety of elements, machine parts, and goods have been manufactured from titanium and its alloys, especially for medicine. The obtained so far alloys are shown in Table 1 [2][3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Determinants of the surface quality, density and dimensional correctness in selective laser melting of the Ti-13Zr-13Nb alloy

Seramak

Zasińska

Mesnard

et al. 2018

Matériaux & Techniques

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Selective laser melting is widely used for custom-designed elements. Successful manufacturing depends on laser treatment parameters and material features. This research aimed to determine the effects of laser power, scan time and hatch distance on surface quality, relative density and dimensional precision for cuboids made of the Ti-13Zr-13Nb alloy. The influence of energy density, energy flux and pre-heating was seen to be decisive to different degrees for the quality of the final specimen. The results obtained were used to produce prosthetic crowns and bridges. The thermal stresses that appeared resulted in a deflection of the bridges and consequently in a change in design approach.

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“…Zhou et al [6] obtained a novel titanium alloy (Ti-5.5Al-3.4Sn-3.0Zr-0.7Mo-0.3Si-0.4Nb-0.35Ta) with T. Seramak, K. Zasińska, A. Zieliński, J. Andryskowski, A. Andryskowska-Ignaczak, M. Motyl: 55 Prosthetic elements made of the Ti-13Zr-13Nb alloy by selective laser melting a relative density of 99.34% under the condition of 140 W laser power and 400 mm/s scanning speed. Fischer [7] manufactured the Ti-Nb alloy by SLM on powder bed of a mixture of Ti and Nb elemental powders (with 26 at% Nb). Yan et al [8] developed new biocompatible Ti-15Ta-xZr (1.5, 5.5, 10.5 and 15.5 wt% of Zr) alloys fabricated by selective laser melting.…”

Section: Introductionmentioning

confidence: 99%

Prosthetic Elements Made of the Ti-13Zr-13Nb Alloy by Selective Laser Melting

Seramak

Zasińska

Zieliński

et al. 2017

Advances in Materials Science

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The fabrication of the prosthetic foundations and bridges from the Ti-13Zr-13Nb alloy is described. The process was started from CAD/CAM design of 3D models of the foundations based on scanning of patient`s mouth. Next, 3D models were transformed into *.stl files for the manufacturing stage and then the manufacturing process by means of the selective laser melting with the SLM Realizer 100 equipment was made. The intrinsic structure of the obtained parts was investigated with X-ray microtomography. The observed imperfections in the foundation's internal structure can be eliminated by a proper setting of the laser melting process. The thermal stresses, which resulted of the temperature change during melting and caused the bending of titanium made bridges, were eliminated at a design stage.

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Improved mechanical properties of the new Ti-15Ta-xZr alloys fabricated by selective laser melting for biomedical application

Cited by 69 publications

References 33 publications

Design and Performance Evaluation of Porous Titanium Alloy Structures for Bone Implantation

Design and Performance Evaluation of Porous Titanium Alloy Structures for Bone Implantation

Determinants of the surface quality, density and dimensional correctness in selective laser melting of the Ti-13Zr-13Nb alloy

Prosthetic Elements Made of the Ti-13Zr-13Nb Alloy by Selective Laser Melting

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