A study on microstructure of porous TiNbZr alloy produced as biomaterial

Kaya, Mehmet; Yakuphanoğlu, F.

doi:10.1002/mawe.201800235

Cited by 8 publications

(5 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In contrast to anatomical bone, titanium-based orthopedic implants present higher stiffness and strength, contributing to stress-shielding phenomena that compromise bone integrity. Thus, Young's modulus could be further reduced until it is more like human bone [8][9][10][11]. Additive manufacturing (AM) also known as 3D-printing is a manufacturing process in which each part is formed layer by layer in a controlled manner using computer-aided software.…”

Section: Introductionmentioning

confidence: 99%

Effects of selective laser melting process parameters on 3D-printing of Ti6Al4V/ST316L composite material and their optimization using response surface methodology

Ismaeel,

Al-Dergazly,

AbdulKareem

et al. 2024

Heritage and Sustainable Development

View full text Add to dashboard Cite

The mechanical properties of Ti6Al4V and ST316L bone implants make them superior to natural bone, which results in fewer contact points with the bone. Different manufacturing processes, such as selective laser melting (SLM), may result in different mechanical properties between Ti-6Al-4V and ST316L implants. Sustainable development for the composite implants was optimized (SLM) in this study to minimize their compressive strength and Young's modulus. A three-dimensional printing process using SLM was optimized based on laser power, hatch distance, laser velocity, and ST316L weight percentage. Composite implants made from titanium alloys and steel alloys were evaluated using response surface methodology (RSM). ST316L composition has been found to influence the mechanical properties of composites in a significant manner, based on the results of parameter optimization. Using Ti6Al4V/ST316L as a biomaterial in knee joint prostheses is possible.

show abstract

Section: Introductionmentioning

confidence: 99%

Effects of selective laser melting process parameters on 3D-printing of Ti6Al4V/ST316L composite material and their optimization using response surface methodology

Ismaeel,

Al-Dergazly,

AbdulKareem

et al. 2024

Heritage and Sustainable Development

View full text Add to dashboard Cite

show abstract

“…Introduction of porosity may help in reducing its Young’s modulus. 49 Different methods have been previously used for the development of titanium foams, which include melt infiltration, 50 , 51 space holders, 52 − 56 replication, 57 , 58 bubble generation, 59 − 62 freeze casting, 63 − 65 and rapid prototyping. 66 − 71 A method that provides accurate control of the volume fraction of pores, pore morphology, pore size, and pore interconnectivity needs to be developed.…”

Section: Introductionmentioning

confidence: 99%

“…Titanium and its alloys show a high degree of biocompatibility, , high tensile strength (pure titanium: 550 MPa), and a relatively lower range of Young’s modulus (pure titanium: 110 GPa), ,,,− which is still too high when compared with that of the cortical bone. ,,,− Titanium can be an ideal candidate for implant applications provided its Young’s modulus could be brought further closer to that of the human bone. Introduction of porosity may help in reducing its Young’s modulus . Different methods have been previously used for the development of titanium foams, which include melt infiltration, , space holders, − replication, , bubble generation, − freeze casting, − and rapid prototyping. − A method that provides accurate control of the volume fraction of pores, pore morphology, pore size, and pore interconnectivity needs to be developed.…”

Section: Introductionmentioning

confidence: 99%

Novel Method for the Production of Titanium Foams to Reduce Stress Shielding in Implants

et al. 2023

View full text Add to dashboard Cite

Titanium foams have potential applications in orthopedic and dental implants because of their low elastic modulus and good bone in-growth properties. In the present study, a novel method for the preparation of three-dimensional interconnected microporous titanium foams has been developed. This method is based on the insertion of a filler metal into the titanium metal by arc melting, followed by its removal by an electrochemical dealloying process for the development of foams. Complete removal of the filler metal by the electrochemical dealloying process was confirmed by an X-ray diffractometry (XRD) analysis, whereas scanning electron microscopy (SEM) analysis of the developed foams showed the development of interconnected porosity. Ti foams with different levels of porosities were successfully developed by varying the amount of the filler metal. Mechanical and thermal characterizations of the developed foams were carried out using compression testing and laser flash apparatus, respectively. The yield strength and elastic modulus of the developed foams were found to decrease by increasing the volume fraction of pores. The elastic modulus of the developed titanium foams (15.5–36 GPa) was found to be closer to that of human bones, whereas their yield strength (147–170 MPa) remained higher than that of human bones. It is therefore believed that the developed Ti foams can help in reducing the problem of stress shielding observed in orthopedic implants. The thermal diffusivity of the developed foams (4.3–0.69 mm2/s) was found to be very close to that of human dentine.

show abstract

“…Generally, most crystal materials are characterized by a high degree of heterogeneity in the form of nonuniform distributions of polycrystalline microstructure, such as grains, texture, phase and so on, which have significantly effects on the deformation response and final service properties of metals [1][2][3][4][5]. In order to investigate the effects, a number of studies have been done to understand the reliance of deformation response on the microstructural attributes experimentally and theoretically [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Modeling and analysis of grain morphology effects on deformation response based on crystal plasticity finite element method

Zhao

et al. 2022

Materialwissenschaft Werkst

View full text Add to dashboard Cite

In order to investigate the grain morphology effects on deformation response at macro‐ and micro‐scale in polycrystalline metal, a method considering grain size and shape effects is proposed based on the classical crystal plasticity finite element method in this paper. A grain morphology controlled polycrystalline geometry model consisting of grain shape models and grain size transition models is developed based on Voronoi diagram. Grain size effect is introduced into the classical crystal plasticity constitutive model quantitatively on the basis of Hall‐Petch type relationship. With the aid of the method, grain aggregate finite element meshes with different mean grain sizes are established to simulate the deformation response of polycrystalline pure copper. The predicted values of flow stresses show good agreement with experimental ones. Finally, a set of grain aggregate finite element meshes with same mean grain size but different grain distributions are developed to simulate the uniaxial tension processes of polycrystalline pure copper. The results shown that the effects of grain morphology on the macro‐scale deformation response are insignificant under a large number of grains with random morphology and orientation. When the grain distributions changes regularly along the x direction, the maximum decrease of flow stress data is 10 MPa.

show abstract

A study on microstructure of porous TiNbZr alloy produced as biomaterial

Cited by 8 publications

References 14 publications

Effects of selective laser melting process parameters on 3D-printing of Ti6Al4V/ST316L composite material and their optimization using response surface methodology

Effects of selective laser melting process parameters on 3D-printing of Ti6Al4V/ST316L composite material and their optimization using response surface methodology

Novel Method for the Production of Titanium Foams to Reduce Stress Shielding in Implants

Modeling and analysis of grain morphology effects on deformation response based on crystal plasticity finite element method

Contact Info

Product

Resources

About