Laser Cladding of Ti Alloys for Biomedical Applications

2020 ◽  
pp. 265-292
Author(s):  
Monireh Ganjali ◽  
Mansoureh Ganjali ◽  
S. K. Sadrnezhaad ◽  
Yousef Pakzad
Keyword(s):  
Laser Cladding ◽  
Biomedical Applications ◽  
Ti Alloys

scholarly journals Surface microstructure of the oxide protective layers grown on vanadium-free Ti alloys for use in biomedical applications

2006 ◽  
Vol 600 (18) ◽  
pp. 3780-3784 ◽  
Author(s):  
Alejandro Gutiérrez ◽  
Carmen Munuera ◽  
María Francisca López ◽  
José Antonio Jiménez ◽  
Carmen Morant ◽  
...  
Keyword(s):  
Biomedical Applications ◽  
Surface Microstructure ◽  
Protective Layers ◽  
Ti Alloys

Eletrochemical Behavior of Hot Swaged and Aged Ti-12Mo-13Nb Alloy

2017 ◽  
Vol 899 ◽  
pp. 295-298
Author(s):  
Sinara Borborema Gabriel ◽  
Gabriel Feliciano Santos ◽  
Artur da Silva Siqueira de Novais ◽  
Raphaela Paciello de Souza Lamarca ◽  
Carlos Angelo Nunes ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Biomedical Applications ◽  
Orthopedic Implants ◽  
Nacl Solution ◽  
Good Corrosion Resistance ◽  
Ti Alloys ◽  
Transmission Electron ◽  
Low Modulus ◽  
Potential Alternative ◽  
Metastable Beta

Recent studies have focused on the development of metastable beta-type Ti alloys with non-toxic elements such as Nb, Ta, Mo and Zr for biomedical applications. These alloys present low modulus, good mechanical compatibility and good corrosion resistance. Moreover, the processing variables can be controlled to produce microstructures with specific properties. In this regard, the objective of this work was to analyze the electrochemical behavior of Ti-13Nb-12Mo alloy hot forged and aged at 500 °C/24 h. The microstructure was analyzed by transmission electron microscopy. The corrosion tests were carried out under a NaCl solution at a temperature of 25 °C. The results showed that under the conditions studied Ti-12Mo-13Nb alloy exhibited passivation, which is desirable for corrosion resistance. Therefore the alloy is a potential alternative for the of Ti-6Al-4V used in orthopedic implants.

scholarly journals Joint Effect of Steel Addition and Press-and-Sinter on the Properties of Low-Cost PM Ti Alloys

2018 ◽  
Vol 770 ◽  
pp. 248-254
Author(s):  
Leandro Bolzoni ◽  
Elisa Maria Ruiz-Navas ◽  
Elena Gordo
Keyword(s):  
Mechanical Properties ◽  
Chemical Composition ◽  
Biomedical Applications ◽  
Low Cost ◽  
Physical And Mechanical Properties ◽  
Steel Powder ◽  
Joint Effect ◽  
Ti Alloys ◽  
Commercial Steel ◽  
Processing Techniques

Cheap alloying elements and creative processing techniques are a way forward to open up more industrial opportunities for Ti in sectors where it is not extensively applied yet, rather than in aerospace and biomedical applications. This study focuses on understanding the joint effect of using a commercial steel powder to add Fe to pure Ti and its processing by press-and-sinter on the behaviour of low-cost PM Ti alloys. It is found that the calibrated addition of steel permits to develop new low-cost Fe-bearing Ti alloys that can satisfactorily be produced using the blending elemental PM approach. Densification of the samples and homogenization of the chemical composition are enhanced by the high diffusivity of Fe. The low-cost α+β alloys reach comparable physical and mechanical properties to those of wrought-equivalent PM Ti alloys, such as Ti-6Al-4V, and are therefore promising candidates for load-bearing lightweight products.

Laser cladding and laser-induced foaming of titanium for biomedical applications

2006 ◽  
Author(s):  
G. Hohenhoff ◽  
H. Haferkamp ◽  
A. Ostendorf ◽  
O. Meier ◽  
S. Czerner ◽  
...  
Keyword(s):  
Laser Cladding ◽  
Biomedical Applications

scholarly journals Improved Elasticity of New Ti-Alloys for Biomedical Applications

2015 ◽  
Vol 2 ◽  
pp. S979-S982 ◽  
Author(s):  
M. Abdel-Hady Gepreel
Keyword(s):  
Biomedical Applications ◽  
Ti Alloys

Fabrication of Bioactive HA/Ti Composite Coating by Laser Cladding

2007 ◽  
Vol 330-332 ◽  
pp. 569-572 ◽  
Author(s):  
Sen Yang ◽  
Hau Chung Man
Keyword(s):  
Composite Coating ◽  
Laser Cladding ◽  
Biomedical Applications ◽  
Bone Growth ◽  
Niti Alloy ◽  
Experimental Result ◽  
Chemical Compositions ◽  
X Ray ◽  
Metallurgical Bonding

To accelerate the bone growth around a metallic implant and to achieve the mechanical characteristics needed for biomedical applications, a HA/Ti composite coating was produced on NiTi alloy substrate by laser cladding. The chemical compositions, microstructures and surface morphology of the cladded layer were analyzed using energy dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), and X-ray diffractometry (XRD). The experimental results showed that an excellent metallurgical bonding between the coating and the substrate was obtained. Owing to decomposition of HA under irradiation of high power laser, the microstructures in bioceramics coating were mainly composed of CaO, CaTiO3, Ti4P3, and HA phases. In vitro experimental result showed that HA/Ti composite coating made the bioactivity of NiTi alloy improve remarkably, which would promote the bone growth and could restrain Ni ion releasing from NiTi alloy.

scholarly journals Investigations into Ti-Based Metallic Alloys for Biomedical Purposes

Metals ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1626
Author(s):  
Ildiko Peter
Keyword(s):  
Biomedical Applications ◽  
Toxic Elements ◽  
Research Paper ◽  
Metallic Alloys ◽  
Ti Alloys ◽  
Two Systems ◽  
Nb Content

In the present research paper, two systems based on Ti-Nb-Zr-Ta and Ti-Nb-Zr–Fe, containing non-toxic elements, are considered and investigated. The first aim of the paper is to enlarge up-to-date developed β-type Ti alloys, analyzing three different compositions, Ti-10Nb-10Zr-5Ta, Ti-20Nb-20Zr-4Ta and Ti-29.3Nb-13.6Zr-1.9Fe, in order to assess their further employment in biomedical applications. To achieve this, structural, microstructural, compositional and mechanical investigations were performed as part of this study. Based on the results obtained, the alloy with the highest Nb content seems to be the most appropriate candidate for advanced biomedical applications and, in particular, for bone substitution.

scholarly journals Biocompatible Titanium Alloys used in Medical Applications

2019 ◽  
Vol 70 (4) ◽  
pp. 1302-1306 ◽  
Author(s):  
Madalina Simona Baltatu ◽  
Catalin Andrei Tugui ◽  
Manuela Cristina Perju ◽  
Marcelin Benchea ◽  
Mihaela Claudia Spataru ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Biomedical Applications ◽  
Elasticity Modulus ◽  
Medical Applications ◽  
Global Level ◽  
Medical Field ◽  
High Corrosion Resistance ◽  
Metallic Biomaterials ◽  
Ti Alloys

At global level, there is a continuing concern for the research and development of alloys for medical and biomedical applications. Metallic biomaterials are used in various applications of the most important medical fields like orthopedic, dental and cardiovascular. The main metallic biomaterials used in human body are stainless steels, Co-based alloys and Ti-based alloys. Titanium and its alloys are of greater interest in medical applications because they exhibit characteristics required for implant materials, namely, good mechanical properties (less elasticity modulus than stainless steel or CoCr alloys, fatigue strength, high corrosion resistance), high biocompatibility. The aim of this review is to describe and compare the main characteristics (mechanical properties, corrosion resistance and biocompatibility) for latest research of nontoxic Ti alloys biomaterials used for medical field.

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