Metallurgical and mechanical properties of Ti–24Nb–4Zr–8Sn alloy fabricated by metal injection molding

Kafkas, Fırat; Ebel, Thomas

doi:10.1016/j.jallcom.2014.07.168

Cited by 55 publications

(17 citation statements)

References 30 publications

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“…In addition to the MIM-processed Ti-Nb binary alloys, carbide particles were also observed in an MIM-processed and HIPed Ti-24Nb-4Sn-8Zr (Ti-2448) alloy containing a super-low level of carbon (0.009 wt.%) [28]. Similar to the as-HIPed…”

Section: Carbon In Ti-nb Alloysmentioning

confidence: 89%

Trace Carbon in Biomedical Beta-Titanium Alloys: Recent Progress

Zhao

Ebel

Yan

et al. 2015

JOM

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Owing to their relatively low Young's modulus, high strength, good resistance to corrosion and excellent biocompatibility, β-titanium (Ti) alloys have shown great potential for biomedical applications. In β-Ti alloys, carbon can exist in the form of titanium carbide (TiC x) as well as interstitial atoms. The TiC binary phase diagram predicts a minimum carbon solubility value of 0.08 wt.% in β-Ti, which has been used as the carbon limit for a variety of β-Ti alloys. However, noticeable grain boundary TiC x particles have been observed in β-Ti alloys at impurity levels of carbon well 2 below the predicted 0.08 wt.%. This review focuses its attention on the trace carbon (≤ 0.08 wt.%) in biomedical β-Ti alloys containing niobium (Nb) and molybdenum (Mo), and discusses the nature and precipitation mechanism of the TiC x particles in these alloys.

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Section: Carbon In Ti-nb Alloysmentioning

confidence: 89%

Trace Carbon in Biomedical Beta-Titanium Alloys: Recent Progress

Zhao

Ebel

Yan

et al. 2015

JOM

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“…These characteristic values (Figure 11) could be compared with the one in literature, especially those when Ti-2448 is processed by powder metallurgy. Kafkas et al found UTS values of 650 to 720 MPa for Ti-2448 processed with Metal Injection Molding with coarse grain sizes and carbides precipitates [33]. When Ti-2448 is sintered using elemental powders by Li et al, UTS reaches 750 to 900 MPa according to the microstructure features [32].…”

Section: Mechanical Properties Of the As-sintered Ti-2448 Samplesmentioning

confidence: 99%

“…On the one hand, sintering of Ti-2448 has been made from elemental powder particles by Li et al [32] but the sintered material could not achieve full density. Metal Injection Molding of pre-alloyed Ti-2448 particles was achieved by Kafkas et al [33]. The results are promising despite the precipitation of Ti x C carbides along the grain boundaries.…”

Section: Introductionmentioning

confidence: 99%

Powder Metallurgy Processing and Mechanical Properties of Controlled Ti-24Nb-4Zr-8Sn Heterogeneous Microstructures

Fer

Tingaud

Hocini

et al. 2020

Metals

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This paper gives some insights into the fabrication process of a heterogeneous structured β-metastable type Ti-24Nb-4Zr-8Sn alloy, and the associated mechanical properties optimization of this biocompatible and low elastic modulus material. The powder metallurgy processing route includes both low energy mechanical ball milling (BM) of spherical and pre-alloyed powder particles and their densification by Spark Plasma Sintering (SPS). It results in a heterogeneous microstructure which is composed of a homogeneous 3D network of β coarse grain regions called “core” and α/β dual phase ultra-fine grain regions called “shell.” However, it is possible to significantly modify the microstructural features of the alloy—including α phase and shell volume fractions—by playing with the main fabrication parameters. A focus on the role of the ball milling time is first presented and discussed. Then, the mechanical behavior via shear tests performed on selected microstructures is described and discussed in relation to the microstructure and the probable underlying deformation mechanism(s).

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“…And that can easily lead to bone resorption around the implant, loosening, rupturing of the implant, eventually resulting in failure of implantation (Miyazaki et al, 2006;Ho et al, 2009;Chaves et al, 2015;Nazari et al, 2015). Toxic elements (Ni, V, and Al) will lead to rickets or Alzheimer's disease, etc., so these harmful elements should be avoided in biomedical materials (Liqiang et al, 2009;Kafkas and Ebel, 2014). Besides low elastic modulus, the implant material is expected to have excellent elasticity, so the implant can better prop up others (Wang et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Effect of Various Annealing Temperature on Microstructure and Properties of Metastable β-Type Ti-35Nb-2Ta-3Zr Alloy for Biomedical Applications

Zhang

Liu

et al. 2020

Front. Mater.

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Microstructure and properties of a metastable β-type Ti-35Nb-2Ta-3Zr alloy after cold rolling plus annealing at various temperatures were investigated systematically. The X-ray diffraction results show that the sample annealed at 923 K is mainly composed of the β phase (92.3%). However, the samples annealed at 723, 823, and 1023 K contain a large amount of α phase of 39.6, 36.5, and 39.4%, respectively. The elastic modulus of the sample annealed at 923 K is about 50.1 GPa. However, these of the samples annealed at 723, 823, and 1023 K are 73.7, 56.1, and 70.2 GPa. Furthermore, the sample annealed at 923 K presents the best elasticity and the highest recovery strain (∼66.87%). The corrosion rate of the sample annealed at 923 K (∼2.403 µm•a −1) is the lowest among all the samples, which may be attributed to its minimum content of α phase.

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Metallurgical and mechanical properties of Ti–24Nb–4Zr–8Sn alloy fabricated by metal injection molding

Cited by 55 publications

References 30 publications

Trace Carbon in Biomedical Beta-Titanium Alloys: Recent Progress

Trace Carbon in Biomedical Beta-Titanium Alloys: Recent Progress

Powder Metallurgy Processing and Mechanical Properties of Controlled Ti-24Nb-4Zr-8Sn Heterogeneous Microstructures

Effect of Various Annealing Temperature on Microstructure and Properties of Metastable β-Type Ti-35Nb-2Ta-3Zr Alloy for Biomedical Applications

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