Effect of hot isostatic pressing on microstructure and mechanical properties of Ti6Al4V-zirconia nanocomposites processed by laser-powder bed fusion

Hattal, Amine; Mukhtarova, Kamilla; Djemaï, Madjid; Chauveau, Thierry; Hocini, A.; Fouchet, Jean Jacques; Bacroix, Brigitte; Gubicza, Jenő; Dirras, G.

doi:10.1016/j.matdes.2022.110392

Cited by 15 publications

(7 citation statements)

References 44 publications

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“…In this study, we investigate the fundamental corrosion and impedance properties of three candidate titanium biomaterials: AM Ti6Al4V with 1% nano‐yttria stabilized zirconia (Ti‐6Al‐4V 1% nYSZ), admixed Ti‐29Nb‐21Zr (admix Ti‐29Nb‐21Zr), and pre‐alloyed Ti‐29Nb‐21Zr (Ti‐29Nb‐21Zr). While Hattal et al studied the microstructural and mechanical properties of Ti‐6Al‐4V 1% nYSZ, comparing as‐built and heat‐treated samples, the admixture's corrosion properties (along with the Ti‐29Nb‐21Zr biomaterials) remain unknown 45–47 . We aim to evaluate these new biomaterials in the context of high ROS solutions that may arise within modular junctions in vivo and compare them to conventional and additively manufactured Ti‐6Al‐4V.…”

Section: Introductionmentioning

confidence: 99%

“…While Hattal et al studied the microstructural and mechanical properties of Ti-6Al-4V 1% nYSZ, comparing as-built and heat-treated samples, the admixture's corrosion properties (along with the Ti-29Nb-21Zr biomaterials) remain unknown. [45][46][47] We aim to evaluate these new biomaterials in the context of high ROS solutions that may arise within modular junctions in vivo and compare them to conventional and additively manufactured Ti-6Al-4V. Using hydrogen peroxide-a chemical species generated by the immune system-as a proxy for all ROS, we determine the effect of a simulated inflammatory solution on open circuit potential (OCP) and anodic potentiodynamic polarization.…”

Section: Introductionmentioning

confidence: 99%

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Additively manufactured Ti‐29Nb‐21Zr shows improved oxide polarization resistance versus Ti‐6Al‐4V in inflammatory simulating solution

Kurtz

Wessinger

Mace

et al. 2023

J Biomedical Materials Res

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Retrieval studies in the past two decades show severe corrosion of titanium and its alloys in orthopedic implants. This damage is promoted by mechanically assisted crevice corrosion (MACC), particularly within modular titanium‐titanium junctions. During MACC, titanium interfaces may be subject to negative potentials and reactive oxygen species (ROS), generated from cathodic activation and/or inflammation. Additive manufacturing (AM) may be able to produce new, corrosion‐resistant titanium alloys and admixtures that are less susceptible to these adverse electrochemical events. In this study, we characterize the impedance and corrosion properties of three new AM titanium materials, including Ti‐6Al‐4V with added 1% nano‐yttria stabilized ZrO2, admixed Ti‐29Nb‐21Zr, and pre‐alloyed Ti‐29Nb‐21Zr. We aim to elucidate how these materials perform when subjected to high ROS solutions. We include conventionally and additively manufactured Ti‐6Al‐4V in our study as comparison groups. A 0.1 M H2O2 phosphate‐buffered saline (PBS) solution, simulating inflammatory conditions, significantly increased biomaterial OCP (−0.14 V vs. Ag/AgCl) compared to PBS only (−0.38 V, p = .000). During anodic polarization, Ti‐6Al‐4V passive current density more than doubled from 1.28 × 10−7 to 3.81 × 10−7 A/cm2 when exposed to 0.1 M H2O2. In contrast, Ti‐29Nb‐21Zr passive current density remained relatively unchanged, slightly increasing from 7.49 × 10−8 in PBS to 9.31 × 10−8 in 0.1 M H2O2. Ti‐29Nb‐21Zr oxide polarization resistance (Rp) was not affected by 0.1 M H2O2, maintaining a high value (1.09 × 106 vs. 1.89 × 106 Ω cm2), while Ti‐6Al‐4V in 0.1 M H2O2 solution had significantly diminished Rp (4.38 × 106 in PBS vs. 7.24 × 104 Ω cm2 in H2O2). These results indicate that Ti‐29Nb‐21Zr has improved corrosion resistance in ROS containing solutions when compared with Ti‐6Al‐4V based biomaterials.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Additively manufactured Ti‐29Nb‐21Zr shows improved oxide polarization resistance versus Ti‐6Al‐4V in inflammatory simulating solution

Kurtz

Wessinger

Mace

et al. 2023

J Biomedical Materials Res

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“…Metal material usually forms a strong texture during plastic deformation. Texture strengthening can improve the strength of magnesium, titanium alloys and copper alloy [30][31][32][33]. Therefore, increasing texture strength after forging may enhance the strength of the Zn-0.45Li alloy.…”

Section: Resultsmentioning

confidence: 99%

Strengthening Mechanism of Rotary-Forged Deformable Biodegradable Zn-0.45Li Alloys

et al. 2023

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The use of zinc (Zn) alloys as a biodegradable metal for medical purposes has been a popular research topic. This study investigated the strengthening mechanism of Zn alloys to enhance their mechanical properties. Three Zn-0.45Li (wt.%) alloys with different deformation amounts were prepared by rotary forging deformation. Their mechanical properties and microstructures were tested. A simultaneous increase in strength and ductility was observed in the Zn-0.45Li alloys. Grain refinement occurred when the rotary forging deformation reached 75.7%. The surface average grain size reached 1.19 ± 0.31 μm, and the grain size was uniformly distributed. Meanwhile, the maximum elongation of the deformed Zn-0.45Li was 139.2 ± 18.6%, and the ultimate tensile strength reached 426.1 ± 4.7 MPa. In situ tensile tests showed that the reinforced alloys still broke from the grain boundary. Continuous and discontinuous dynamic recrystallization during severe plastic deformation produced many recrystallized grains. During deformation, the dislocation density of the alloy first increased and then decreased, and the texture strength of the (0001) direction increased with deformation. Analysis of the mechanism of alloy strengthening showed that the strength and plasticity enhancement of Zn-Li alloys after macro deformation was a combination of dislocation strengthening, weave strengthening, and grain refinement rather than only fine-grain strengthening as observed in conventional macro-deformed Zn alloys.

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“…Moreover, the 3D-printed materials often contain defects such as lack-of-fusion, cracks, and pores which weaken the strength and may result in an incomplete dissolution of the foreign element in the prealloyed HEA. [26,31,32] Indeed, particles of pure Nb can be found in the as-processed combinatorial Nb x [CoCrFeMnNi] 1Àx MPEA sample due to the incomplete melting of Nb powder. [26] In addition, the fast cooling in the laser-assisted processing can yield large residual stresses and many lattice defects (e.g., dislocations and grain boundaries) in 3D-printed materials which may influence the observed phase composition.…”

Section: Processing Of Combinatorial Mpeasmentioning

confidence: 99%

Combinatorial Design of Novel Multiprincipal Element Alloys Using Experimental Techniques

Gubicza

2023

Adv Eng Mater

Self Cite

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Multiprincipal element alloys (MPEAs) including high‐entropy alloys are in the focus of materials science since many MPEA compositions exhibit outstanding mechanical and physical properties. These alloys contain 3–6 constituents with similar fractions; therefore, MPEAs correspond to the unexplored middle part of the phase diagrams. The phase composition and the performance of MPEAs are strongly influenced by their chemistry. Thus, it is very important to reveal the correlation between the composition, the structure, and the properties of MPEAs. On the other hand, this task is challenging due to the vast composition space of these alloys. The processing and characterization of combinatorial specimens can yield a fast mapping of compositional libraries of MPEAs. Herein, the experimental techniques developed for manufacturing and investigation of these alloys are overviewed and the results are critically discussed. Finally, further development directions in the field of combinatorial MPEAs are recommended in order to improve the study of the different alloy compositions.

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Effect of hot isostatic pressing on microstructure and mechanical properties of Ti6Al4V-zirconia nanocomposites processed by laser-powder bed fusion

Cited by 15 publications

References 44 publications

Additively manufactured Ti‐29Nb‐21Zr shows improved oxide polarization resistance versus Ti‐6Al‐4V in inflammatory simulating solution

Additively manufactured Ti‐29Nb‐21Zr shows improved oxide polarization resistance versus Ti‐6Al‐4V in inflammatory simulating solution

Strengthening Mechanism of Rotary-Forged Deformable Biodegradable Zn-0.45Li Alloys

Combinatorial Design of Novel Multiprincipal Element Alloys Using Experimental Techniques

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