Synthesis of porous Ti–50Ta alloy by powder metallurgy

Dercz, Grzegorz; Matuła, Izabela; Zubko, Maciej; Kazek-Kęsik, Alicja; Maszybrocka, Joanna; Simka, Wojciech; Dercz, J.; Świec, Paweł; Jendrzejewska, Izabela

doi:10.1016/j.matchar.2018.05.033

Cited by 45 publications

(20 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Powder metallurgy (PM) uses the powder of pure metals, blends, or alloys as raw materials, and it produces metallic parts by forming and/or sintering [125][126][127][128][129][130]. Before the process of PM, the powder would be compressed in a mold, which aims to attain the required shapes and dimensions of the model [23,125,[131][132][133]. Afterward, the sintering process is conducted under a protective atmosphere in a high-temperature stove or a vacuum stove.…”

Section: Powder Metallurgymentioning

confidence: 99%

“…Afterward, the sintering process is conducted under a protective atmosphere in a high-temperature stove or a vacuum stove. PM allows the fabrication of amorphous materials, solid solutions as well as intermetallic phases from components with different melting points [131,[134][135][136]. In addition, PM technology has high design freedom and could fabricate metallic parts with porous structures on a large scale [10].…”

Section: Powder Metallurgymentioning

confidence: 99%

See 1 more Smart Citation

Recent Development in Beta Titanium Alloys for Biomedical Applications

Chen

Cui

Zhang

2020

Metals

203

View full text Add to dashboard Cite

β-type titanium (Ti) alloys have attracted a lot of attention as novel biomedical materials in the past decades due to their low elastic moduli and good biocompatibility. This article provides a broad and extensive review of β-type Ti alloys in terms of alloy design, preparation methods, mechanical properties, corrosion behavior, and biocompatibility. After briefly introducing the development of Ti and Ti alloys for biomedical applications, this article reviews the design of β-type Ti alloys from the perspective of the molybdenum equivalency (Moeq) method and DV-Xα molecular orbital method. Based on these methods, a considerable number of β-type Ti alloys are developed. Although β-type Ti alloys have lower elastic moduli compared with other types of Ti alloys, they still possess higher elastic moduli than human bones. Therefore, porous β-type Ti alloys with declined elastic modulus have been developed by some preparation methods, such as powder metallurgy, additive manufacture and so on. As reviewed, β-type Ti alloys have comparable or even better mechanical properties, corrosion behavior, and biocompatibility compared with other types of Ti alloys. Hence, β-type Ti alloys are the more suitable materials used as implant materials. However, there are still some problems with β-type Ti alloys, such as biological inertness. As such, summarizing the findings from the current literature, suggestions forβ-type Ti alloys with bioactive coatings are proposed for the future development.

show abstract

Section: Powder Metallurgymentioning

confidence: 99%

Section: Powder Metallurgymentioning

confidence: 99%

Recent Development in Beta Titanium Alloys for Biomedical Applications

Chen

Cui

Zhang

2020

Metals

203

View full text Add to dashboard Cite

show abstract

“…Also, aluminum (Al) ions are neurotoxic and inhibit bone mineralization [ 2 , 4 , 5 , 6 , 7 , 8 ]. Thereby, scientists focus on the study of Al- and V-free titanium alloys [ 9 , 10 , 11 , 12 , 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

“…The major problem of using metals for implants that their Young’s modulus is too large in comparison to the properties of human bones. The Young’s modulus of α (pure Ti) and α + β (Ti–6Al–4V) titanium alloys, respectively, 105 GPa and 110 GPa, are about three times higher than that of bone (30 GPa) [ 11 , 12 ]. This mismatch induces stress between the implant material and natural bone, which can cause damage to the tissues and premature failure of the implants [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Porosity Evolution of the Ti–35Zr Biomedical Alloy Produced by Elemental Powder Metallurgy

et al. 2020

Self Cite

View full text Add to dashboard Cite

In the present study, the structure and porosity of binary Ti–35Zr (wt.%) alloy were investigated, allowing to consider powder metallurgy as a production method for new metallic materials for potential medical applications. The porous Ti–Zr alloys were obtained by milling, cold isostatic pressing and sintering. The pressure during cold isostatic pressing was a changing parameter and was respectively 250, 500, 750 and 1000 MPa. The X-ray diffraction study revealed only the α phase, which corresponds to the Ti–Zr phase diagram. The microstructure of the Ti–35Zr was observed by optical microscopy and scanning electron microscopy. These observations revealed that the volume fraction of the pores decreased from over 20% to about 7% with increasing pressure during the cold isostatic pressing. The microhardness measurements showed changes from 137 HV0.5 to 225 HV0.5.

show abstract

“…In this sense, PM is a powerful tool for the manufacture of Ti-based alloys for biomedical applications. Dercz [30] reported the formation of α phase and β phase in a Ti-50Ta alloy milled for 72 h. The sintered Ti-50Ta alloy showed better corrosion resistance than pure Ti [1]. García-Garrido et al [31,32] reported that the (β + γ)-TiNbTa alloy was manufactured by mechanical alloying (MA) synthesis, carried out at low energy, followed by a field-assisted consolidation technique, that is, pulsed electric current sintering (PECS).…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic Analysis of the Formation of FCC and BCC Solid Solutions of Ti-Based Ternary Alloys by Mechanical Alloying

Aguilar

Martínez

Tello

et al. 2020

Metals

View full text Add to dashboard Cite

A thermodynamic analysis of the synthesis of face-centred cubic (fcc) and body-centred cubic (bcc) solid solutions of Ti-based alloys produced by mechanical alloying was performed. Four Ti-based alloys were analysed: (i) Ti-13Ta-3Sn (at.%), (ii) Ti-30Nb-13Ta (at.%), (iii) Ti-20Nb-30Ta (wt. %) and (iv) Ti-33Nb-4Mn (at.%). The milled powders were characterized by X-ray diffraction, and the crystallite size and microstrain were determined using the Rietveld and Williamson-Hall methods. The Gibbs free energy of mixing for the formation of a solid solution of the three ternary systems (Ti-Ta-Sn, Ti-Nb-Ta and Ti-Nb-Mn) was calculated using an extended Miedema's model, applying the Materials Analysis Applying Thermodynamics (MAAT) software. The values of the activity of each component were determined by MAAT. It was found that increasing the density of crystalline defects, such as dislocations and crystallite boundaries, changed the solubility limit in these ternary systems. Therefore, at longer milling times, the Gibbs free energy increases, so there is a driving force to form solid solutions from elemental powders. Finally, there is agreement between experimental and thermodynamic data confirming the formation of solid solutions.Author Contributions: Conceptualization, C.A. and C.M.; methodology, C.A. and F.S.M.; software, C.A.; validation, I.A.; formal Analysis, C.A., C.M. and S.P.; investigation, C.A., F.S.M. and K.T.; writing-original draft preparation, C.A., S.P. and A.D.; writing-review and editing, S.P., A.D., K.T. and I.A.; visualisation, C.A. and I.A.; project administration, C.A.; funding acquisition, C.A. and K.T. All authors have read and agreed to the published version of the manuscript. Funding:The authors would like to acknowledge the financial support received from the FONDECYT project n 1190797 and FONDEQUIP/EQM project n 140095. Conflicts of Interest:The authors declare no conflict of interest.

show abstract

Synthesis of porous Ti–50Ta alloy by powder metallurgy

Cited by 45 publications

References 60 publications

Recent Development in Beta Titanium Alloys for Biomedical Applications

Recent Development in Beta Titanium Alloys for Biomedical Applications

Microstructure and Porosity Evolution of the Ti–35Zr Biomedical Alloy Produced by Elemental Powder Metallurgy

Thermodynamic Analysis of the Formation of FCC and BCC Solid Solutions of Ti-Based Ternary Alloys by Mechanical Alloying

Contact Info

Product

Resources

About