Microstructure, defects and mechanical behavior of beta-type titanium porous structures manufactured by electron beam melting and selective laser melting

Liu, Yujing; Li, S. J.; Wang, H. L.; Hou, Wentao; Hao, Yulin; Yang, Rui; Sercombe, T.B.; Zhang, Lai-Chang

doi:10.1016/j.actamat.2016.04.029

Cited by 448 publications

(130 citation statements)

References 58 publications

(84 reference statements)

Supporting

Mentioning

127

Contrasting

Unclassified

Order By: Relevance

“…The process of annealing or aging implemented after fabrication led to a different microstructure, where the mechanical properties are sensitive to the microstructure [85]. It was observed that the annealed sample consisted of single β phase and exhibited large plasticity, low Young's modulus and good fatigue properties.…”

Section: Role Of Post-fabrication Heat Treatmentmentioning

confidence: 97%

“…1 is an SLM system, also referred as selective laser sintering (SLS) (Fig. 1), which is a conventional particle-bonding system, using a laser beam (e.g., CO 2 laser) in lieu of electron beam [61].…”

Section: Electron Beam Meltingmentioning

confidence: 99%

“…It was observed that the annealed sample consisted of single β phase and exhibited large plasticity, low Young's modulus and good fatigue properties. On aging, precipitation of α phase occurred that increased the hardness, strength and Young's modulus and at low stress, cyclic ratcheting was the primary factor that led to fatigue failure [85].…”

Section: Role Of Post-fabrication Heat Treatmentmentioning

confidence: 99%

“…1) to process 3D porous scaffolds has an electron column, where a focused electron beam is produced and scans a uniformly raked layer of powder, which is gravity fed from the feed stock [1,61]. The AR-CAM A1 system, using a DC current of~10 mA and anode potential of 60 kV drives a tungsten filament in a 3 kW electron gun.…”

Section: Electron Beam Meltingmentioning

confidence: 99%

See 3 more Smart Citations

Advancements in three-dimensional titanium alloy mesh scaffolds fabricated by electron beam melting for biomedical devices: mechanical and biological aspects

Nune

Misra

2017

Sci. China Mater.

View full text Add to dashboard Cite

We elucidate here the process-structure-property relationships in three-dimensional (3D) implantable titanium alloy biomaterials processed by electron beam melting (EBM) that is based on the principle of additive manufacturing. The conventional methods for processing of biomedical devices including freeze casting and sintering are limited because of the difficulties in adaptation at the host site and difference in the micro/macrostructure, mechanical, and physical properties with the host tissue. In this regard, EBM has a unique advantage of processing patient-specific complex designs, which can be either obtained from the computed tomography (CT) scan of the defect site or through a computeraided design (CAD) program. This review introduces and summarizes the evolution and underlying reasons that have motivated 3D printing of scaffolds for tissue regeneration. The overview comprises of two parts for obtaining ultimate functionalities. The first part focuses on obtaining the ultimate functionalities in terms of mechanical properties of 3D titanium alloy scaffolds fabricated by EBM with different characteristics based on design, unit cell, processing parameters, scan speed, porosity, and heat treatment. The second part focuses on the advancement of enhancing biological responses of these 3D scaffolds and the influence of surface modification on cell-material interactions. The overview concludes with a discussion on the clinical trials of these 3D porous scaffolds illustrating their potential in meeting the current needs of the biomedical industry.

show abstract

Section: Role Of Post-fabrication Heat Treatmentmentioning

confidence: 97%

Section: Electron Beam Meltingmentioning

confidence: 99%

Section: Role Of Post-fabrication Heat Treatmentmentioning

confidence: 99%

Section: Electron Beam Meltingmentioning

confidence: 99%

See 2 more Smart Citations

Advancements in three-dimensional titanium alloy mesh scaffolds fabricated by electron beam melting for biomedical devices: mechanical and biological aspects

Nune

Misra

2017

Sci. China Mater.

View full text Add to dashboard Cite

show abstract

“…So, in principle, thermo-mechanical processing routes determine the types of texture components together with the microstructures. Although a series of systematical studies have been performed on the texture of titanium alloys in the process of deformation and post-deformation heat treatment [19][20][21][22][23][24][25], limited literature is available on texture evolution of VT3-1 titanium alloys fabricated by multi-pass warm drawing and subsequent isothermal annealing. To achieve the desired mechanical properties of bar materials, a comprehensive understanding of the relationship between microstructure, texture, and mechanical properties during drawing and subsequent heat treatment is needed.…”

Section: Introductionmentioning

confidence: 99%

Microstructure, Texture Evolution and Mechanical Properties of VT3-1 Titanium Alloy Processed by Multi-Pass Drawing and Subsequent Isothermal Annealing

Lei

Dong

Zhang

et al. 2017

Metals

View full text Add to dashboard Cite

Microstructure, texture evolution, and mechanical properties of Ti-6Al-1.5Cr-2.5Mo-0.5Fe-0.3Si (VT3-1) titanium alloy processed by multi-pass drawing and subsequent isothermal annealing were systematically investigated. A fiber-like microstructure is formed after warm drawing at 760 • C with 60% area reduction. After isothermal annealing, the samples deformed to different amounts of area reduction show a similar volume fraction (80%) of α phase, while the sample deformed to 60% exhibits a homogeneous microstructure with a larger grain size (5.8 µm). The major texture component of α phase developed during warm drawing is centered at a position of {φ 1 = 10 • , φ = 65 • , φ 2 = 0 • }. The textures for annealed samples are almost along the orientation of original deformation textures and show significant increases in orientation density and volume fraction compared with their deformed states. In addition, for the drawn samples, the ultimate tensile strength increases but the ductility decreases with increasing drawing deformation. A negative slope of yield strength of annealed samples versus grain size (d −1/2 ) is found due to the difference between texture softening for as-rolled + annealed state and texture hardening for drawn + annealed state. The mechanical properties of annealed samples are found to be strongly dependent on grain size and texture, resulting in the balance of the strength and ductility.

show abstract

Electron Beam Melting

2023

Metal Powder–Based Additive Manufacturing

View full text Add to dashboard Cite

Microstructure, defects and mechanical behavior of beta-type titanium porous structures manufactured by electron beam melting and selective laser melting

Cited by 448 publications

References 58 publications

Advancements in three-dimensional titanium alloy mesh scaffolds fabricated by electron beam melting for biomedical devices: mechanical and biological aspects

Advancements in three-dimensional titanium alloy mesh scaffolds fabricated by electron beam melting for biomedical devices: mechanical and biological aspects

Microstructure, Texture Evolution and Mechanical Properties of VT3-1 Titanium Alloy Processed by Multi-Pass Drawing and Subsequent Isothermal Annealing

Electron Beam Melting

Contact Info

Product

Resources

About