Properties of solid core and porous surface Ti–6Al–4V implants manufactured by powder metallurgy

Dewidar, Montasser; Lim, Jae Kyoo

doi:10.1016/j.jallcom.2006.12.143

Cited by 63 publications

(43 citation statements)

References 11 publications

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“…Although incre→sed porosity →nd pore size f→cilit→te bone ingrowth, it deterior→tes the structur→l integrity of the sc→ffold, le→ding to → very low mech→nic→l strength. The compromise in mech→nic→l properties of the sc→ffold with incre→sing porosity sets →n upper limit on the porosity →nd pore size (Dewid→r & Lim, 2008). Thus, → tr→de-off must be m→int→ined between the biomech→nic→l properties →nd porosity of the m→teri→l needed for www.intechopen.com orthopedic surgery (Ry→n et →l., 2006;Gutierres et →l., 2008).…”

Section: Mechanical Properties Of Porous Metal Scaffoldsmentioning

confidence: 99%

Biomimetic Porous Titanium Scaffolds for Orthopedic and Dental Applications

Nouri¹,

Hodgson²,

Wen³

2010

Biomimetics Learning From Nature

111

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Section: Mechanical Properties Of Porous Metal Scaffoldsmentioning

confidence: 99%

Biomimetic Porous Titanium Scaffolds for Orthopedic and Dental Applications

Nouri¹,

Hodgson²,

Wen³

2010

Biomimetics Learning From Nature

111

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“…It avoids the remelting of the material and subsequent heat treatments performed in the fusion process [8]. Nowadays porous titanium has become a popular surgical implant material since it increases the roughness and the porosity of the material, thus increasing the integration of the material device to the bone [9][10][11]. As the roughness increases the osseointegration is greater, but the active surface is also higher promoting the corrosion and the formation of oxides on the titanium surface [12].…”

Section: Introductionmentioning

confidence: 99%

Tribocorrosion behavior of beta titanium biomedical alloys in phosphate buffer saline solution

Pina

Dalmau

Devesa

et al. 2015

Journal of the Mechanical Behavior of Biomedical Materials

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ElsevierGuiñon Pina, V.; Dalmau, A.; Amigó Borrás, V. (2015). AbstractThe tribo-electrochemical behavior of different  titanium alloys for biomedical applications sintered by powder metallurgy has been investigated. Different mechanical, electrochemical and optical techniques were used to study the influence of the chemical composition, Sn content, and the electrochemical conditions on the tribocorrosion behavior of those alloys Ti30NbxSn alloys (where "x" is the weight percentage of Sn content, 2% and 4%).Sn content increases the active and passive dissolution rate of the titanium alloys, thus increasing the mechanically activated corrosion under tribocorrosion conditions. It also increases the mechanical wear of the alloy. Prevailing electrochemical conditions between -1 and 2 V influences the wear accelerated corrosion by increasing it with the applied potential and slightly increases the mechanical wear of Ti30Nb4Sn.Wear accelerated corrosion can be predicted by existing models as a function of electrochemical and mechanical parameters of the titanium alloys.

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“…porous surface structures). 4 However, there is still a desire to further enhance the lifespan and performance of implants such that the device meets or exceeds the performance of the natural biological structure. One of the approaches to achieve this goal is to develop functionally graded implants composed of a Ti-6Al-4V (Ti-6-4) core and a hydroxyapatite (HA) rich surface.…”

Section: Introductionmentioning

confidence: 99%

Enhancement in Ti–6Al–4V sintering via nanostructured powder and spark plasma sintering

et al. 2014

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Studies are performed to enhance low temperature sintering of Ti-6Al-4V. High energy ball milling is found to be effective in lowering the sintering temperature through the mechanisms of particle size reduction and nanograin formation. The former reduces the diffusion distance for densification, whereas the latter introduces an additional densification mechanism allowing mass transport from the interior of the particle to the neck zone. Together, these two effects can reduce the onset temperature for densification by about 300uC. Spark plasma sintering can further improve low temperature sintering when compared with radiant heat sintering and microwave sintering. The enhanced densification is discussed on the basis of the applied pressure (50 MPa) and the intrinsic joule effect that leads to increase in the local temperature at the contact point between particles.

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Properties of solid core and porous surface Ti–6Al–4V implants manufactured by powder metallurgy

Cited by 63 publications

References 11 publications

Biomimetic Porous Titanium Scaffolds for Orthopedic and Dental Applications

Biomimetic Porous Titanium Scaffolds for Orthopedic and Dental Applications

Tribocorrosion behavior of beta titanium biomedical alloys in phosphate buffer saline solution

Enhancement in Ti–6Al–4V sintering via nanostructured powder and spark plasma sintering

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