Recent advances in Ti-6Al-4V additively manufactured by selective laser melting for biomedical implants: Prospect development

Aufa, A.N.; Hassan, Mohamad Zaki; Ismail, Zarini

doi:10.1016/j.jallcom.2021.163072

Cited by 110 publications

(40 citation statements)

References 197 publications

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“…The good mechanical strength, low density, excellent corrosion resistance and biocompatibility of titanium alloys make them ideal candidates for aerospace [1,2], automotive [3,4] and biomedical applications [5,6]. Nevertheless, the poor tribological properties of these alloys are a major drawback to their application.…”

Section: Introductionmentioning

confidence: 99%

Tribological Properties of Ti6Al4V Titanium Textured Surfaces Created by Laser: Effect of Dimple Density

Gaikwad

Salguero

et al. 2022

Lubricants

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The loss of energy due to friction is one of the major problems industries are facing nowadays. Friction and wear between sliding components reduce the mechanical efficiency of machines and have a negative impact on the environment. In recent years, surface texturing has shown tremendous ability to reduce friction and wear. Micro-features generated on surfaces act as a secondary reservoir for lubricants and wear debris receptacles to further reduce abrasion. In addition, surface texturing boosts hydrodynamic pressure, which increases the elasto-hydrodynamic lubrication regime of the Stribeck curve, reducing friction and wear. Amongst all different techniques to texture surfaces, laser texturing is the most popular due to its advantages such as high accuracy, good consistency and celerity as compared to other techniques. This study investigated the effect of laser texturing on the tribological properties of Ti6Al4V in contact with a ceramic ball. The effect of varying the dimple density on friction and wear was studied using a ball-on-flat reciprocating tribometer under lubricated conditions. Results show that friction and wear were reduced for all the textured samples as compared to an untextured sample, with important friction and wear reductions for the samples with the highest dimple densities. For samples with intermediate dimple densities, the friction coefficient stayed low until the dimples wore out from the surface and then increased to a value similar to the friction coefficient of the untextured surface. The dimple wear-out time observed in these specimens was greatly influenced by the dimple density.

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Section: Introductionmentioning

confidence: 99%

Tribological Properties of Ti6Al4V Titanium Textured Surfaces Created by Laser: Effect of Dimple Density

Gaikwad

Salguero

et al. 2022

Lubricants

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show abstract

“…Currently, materials produced by selective laser melting (SLM) technologies are regarded as a new class of structural materials, while SLM is considered as an advantageous technology for designing complex-shaped metal products for prospective applications in mechanical engineering, biomedicine, the power industry, etc. [ 1 , 2 , 3 , 4 , 5 ]. Active research is underway into SLM materials and by now the effect of melting modes on the density, structure, and physical and mechanical properties of various SLM materials has been studied comprehensively [ 6 , 7 , 8 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

“…Active research is underway into SLM materials and by now the effect of melting modes on the density, structure, and physical and mechanical properties of various SLM materials has been studied comprehensively [ 6 , 7 , 8 , 9 , 10 ]. Their corrosion resistance [ 2 , 4 , 9 , 10 , 11 ], deformation behavior at elevated temperatures [ 5 , 8 , 12 , 13 , 14 ], resistance to fatigue failure [ 3 , 8 , 11 , 15 , 16 , 17 ], and other properties are being actively investigated.…”

Section: Introductionmentioning

confidence: 99%

Effect of Hydrogen on the Structure and Mechanical Properties of 316L Steel and Inconel 718 Alloy Processed by Selective Laser Melting

Maksimkin¹,

Yukhimchuk²,

Malkov³

et al. 2022

Materials

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The interaction of hydrogen with specimens of 316L steel and Inconel 718 alloy processed by selective laser melting (SLM) was studied. The effect of hydrogen on the mechanical properties of SLM materials, hydrogen permeability, and microstructure was investigated; besides, these values were compared with the properties of conventionally produced materials. It was shown that SLM can be successfully used to produce parts for operation in hydrogen environments at high pressure at room temperature.

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“…Meanwhile, after the heat treatment at 1050 °C, the microstructure is composed of thin films, where the alpha phase nucleates and diffuses across the grain boundaries of the beta phase (Fig. 1 ), forming intercalate thin plates of acicular alpha phase, and beta phase [ 22 , 23 , 26 , 27 ]. It is important to note that these Ti6Al4V alloys present different microstructural features, which were implanted at different times in Wistar rats (in vivo tests).…”

Section: Resultsmentioning

confidence: 99%

Implantation of heat treatment Ti6al4v alloys in femoral bone of Wistar rats

Chávez-Díaz

Henche

Yanchuck

et al. 2022

J Mater Sci: Mater Med

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Two heat treatments were carried out at below (Ti6Al4V800) and above (Ti6Al4V1050) the beta-phase transformation temperature (TTRANSUS = 980 °C), to study the effect of microstructural changes on osseointegration. The alloys were implanted in the femurs of hind legs of Wistar rats for 15, 30, and 60 days. Histology of the femur sections obtained for the first 15 days showed inflammatory tissue surrounding the implants and tissue contraction, which prevented osseointegration in early stages. After 30 days, trabecular bone, reduction of inflammatory tissue around the implants, and osseointegration were observed in Ti6Al4V as received and Ti6Al4V1050 alloys, while osseointegration was detected for the three alloys after 60 days. These results were supported through morphometric studies based on the analysis of Bone Implant Contact (BIC), where there was a larger bone contact after 60 days for the Ti6Al4V1050 alloy; indicating that microstructural features of the Ti6Al4V alloys influence their osseointegration, with the lamellar microstructure (Ti6Al4V1050), being the most responsive.

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Recent advances in Ti-6Al-4V additively manufactured by selective laser melting for biomedical implants: Prospect development

Cited by 110 publications

References 197 publications

Tribological Properties of Ti6Al4V Titanium Textured Surfaces Created by Laser: Effect of Dimple Density

Tribological Properties of Ti6Al4V Titanium Textured Surfaces Created by Laser: Effect of Dimple Density

Effect of Hydrogen on the Structure and Mechanical Properties of 316L Steel and Inconel 718 Alloy Processed by Selective Laser Melting

Implantation of heat treatment Ti6al4v alloys in femoral bone of Wistar rats

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