Mechanical performance of PEEK-Ti6Al4V interpenetrating phase composites fabricated by powder bed fusion and vacuum infiltration targeting large and load-bearing implants

Chen, Xu; Wu, Yanru; Liu, Huilong; Wang, Yaning; Zhao, Guanjia; Zhang, Qingxian; Wang, Fu; Liu, Yaxiong

doi:10.1016/j.matdes.2022.110531

Cited by 22 publications

(3 citation statements)

References 54 publications

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“…stress-strain compressive curves are plotted in Figure 13. All samples exhibited an el linear rising stage, a long period of inclined plastic yielding stage, and a dramatic d ping stage, in accordance with the compressive stress-strain curve of a typical porous tallic material [28,39,40]. This indicates that the pores in the structure can absorb pa the loading energy before being completely fractured.…”

Section: Compressive Performance Of Particle-stacking Microporous 316lsupporting

confidence: 75%

Fabrication of Particle-Stacking Microporous Metal Using Laser Powder Bed Fusion

Qiu,

Xu,

Chen

et al. 2024

Coatings

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Laser powder bed fusion can fabricate porous structures through lattices, but the preparation of micropores (<50 μm) with a specific pore distribution remains a challenge. Microporous 316L was fabricated by controlling the melting and solidification behavior of the particles using laser energy. The laser energy density was not a determining factor for the porosity and micropore formation, except for the single-factor condition. The high-speed scanning mode required a higher laser power to disorder the pore distribution, whereas low-speed scanning with a low laser impact on the stacking particles formed organized pores. The hatch distance significantly affected the pore distribution and pore size. The pore distribution in the XY plane was organized and homogenous, with channeled pores mainly interconnected along the laser scanning tracks, whereas in the Z direction, it showed a relatively disordered distribution, mainly linked along the layered direction. The microporous 316L displayed a mean pore size and median pore size of 10–50 μm with a high-percentage size distribution in 1–10 μm, a controllable porosity of 17.06%–45.33% and a good yield strength of 79.44–318.42 MPa, superior to the lattice porous 316L with 250.00 MPa at similar porosity.

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Section: Compressive Performance Of Particle-stacking Microporous 316lsupporting

confidence: 75%

Fabrication of Particle-Stacking Microporous Metal Using Laser Powder Bed Fusion

Qiu,

Xu,

Chen

et al. 2024

Coatings

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“…Chen et al (2022) have postprocessed the AM (PBF) load-bearing implant of PEEK-Ti6Al4V composite using the vacuum infiltration technique. The results showed the significant improvement of comprehensive mechanical properties, i.e.…”

Section: Techniques For Improving the Surface Quality Of Additively M...mentioning

confidence: 99%

A comprehensive review on surface quality improvement methods for additively manufactured parts

Hashmi

Mali

Meena

2022

RPJ

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Purpose The purpose of this paper is to study the functionality of additively manufactured (AM) parts, mainly depending on their dimensional accuracy and surface finish. However, the products manufactured using AM usually suffer from defects like roughness or uneven surfaces. This paper discusses the various surface quality improvement techniques, including how to reduce surface defects, surface roughness and dimensional accuracy of AM parts. Design/methodology/approach There are many different types of popular AM methods. Unfortunately, these AM methods are susceptible to different kinds of surface defects in the product. As a result, pre- and postprocessing efforts and control of various AM process parameters are needed to improve the surface quality and reduce surface roughness. Findings In this paper, the various surface quality improvement methods are categorized based on the type of materials, working principles of AM and types of finishing processes. They have been divided into chemical, thermal, mechanical and hybrid-based categories. Research limitations/implications The review has evaluated the possibility of various surface finishing methods for enhancing the surface quality of AM parts. It has also discussed the research perspective of these methods for surface finishing of AM parts at micro- to nanolevel surface roughness and better dimensional accuracy. Originality/value This paper represents a comprehensive review of surface quality improvement methods for both metals and polymer-based AM parts. Graphical abstract of surface quality improvement methods

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“…Combining two types of material is an effective method to complement the deficiencies of each other, which has begun to receive attentions. Chen et al [25] prepared a PEEK-Ti6Al4V interpenetrating phase composites using powder bed fusion and vacuum infiltration process. It was found that the composites exhibited higher compressive and fatigue strengths.…”

Section: Introductionmentioning

confidence: 99%

Design of 3D printed metal frame nested porous polyimide composites

Li,

Zhao,

et al. 2024

Surf. Topogr.: Metrol. Prop.

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Porous polyimide (PPI) can store oil, but the mechanical properties are also weakened by the pores. To solve this problem, a 3D printed metal frame-PPI nested composite (MFP) was proposed. The composite material has a binary pore structure (ordered submillimeter-level metal frame macropores and disordered micron-level PPI micropores). PPI material is filled in the metal frame, and the oil could be filled into the micropores, improving the mechanical and tribological performances. The preparation method was optimized and the mechanical, oil content, tribological properties of MFP were investigated. The experimental results showed that MFP enhance its ability to resist external deformation and has excellent mechanical properties and tribological properties. As the density of PPI filled in the metal frame increases, PPI is tightly bonded to the metal. Under the PPI filling density of 1.1 g/cm3 and sintering temperature of 330°C, MFP could be well formed, and the friction coefficient is the lowest (0.035). MFP exhibits excellent mechanical and tribological performances.

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Mechanical performance of PEEK-Ti6Al4V interpenetrating phase composites fabricated by powder bed fusion and vacuum infiltration targeting large and load-bearing implants

Cited by 22 publications

References 54 publications

Fabrication of Particle-Stacking Microporous Metal Using Laser Powder Bed Fusion

Fabrication of Particle-Stacking Microporous Metal Using Laser Powder Bed Fusion

A comprehensive review on surface quality improvement methods for additively manufactured parts

Design of 3D printed metal frame nested porous polyimide composites

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