Combinatorial synthesis of alloy libraries with a progressive composition gradient using laser engineered net shaping (LENS): Hydrogen storage alloys

Polański, Marek; Kwiatkowska, Monika; Kunce, Izabela; Bystrzycki, J.

doi:10.1016/j.ijhydene.2013.05.024

Cited by 37 publications

(17 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another key difference of DLD is the potential for using multiple powders within the same build. This allows for the production of bespoke alloys and compositionally graded parts, along with the usual range of complex and customized parts [107,108] .…”

Section: Dldmentioning

confidence: 99%

“…The primary components of DLD systems ( Figure 10) include the following; a laser system, powder delivery systems (single or multiple powder hoppers), the controlled environment glove box, and the motion control system (i.e. a Computerized Numerical Control (CNC) system) [107,109,110] . As with the previously discussed techniques, DLD production of parts begins with a design in STL format, which is sliced into 2D layers.…”

Section: Dldmentioning

confidence: 99%

See 1 more Smart Citation

Additive Manufacturing of Titanium Alloys for Orthopedic Applications: A Materials Science Viewpoint

et al. 2018

View full text Add to dashboard Cite

Titanium‐based orthopedic implants are increasingly being fabricated using additive manufacturing (AM) processes such as selective laser melting (SLM), direct laser deposition (DLD), and electron beam melting (EBM). These techniques have the potential to not only produce implants with properties comparable to conventionally manufactured implants, but also improve on standard implant models. These models can be customized for individual patients using medical data, and design features, such as latticing, hierarchical scaffolds, or features to complement patient anatomy, can be added using AM to produce highly functional patient‐anatomy‐specific implants. Alloying prospects made possible through AM allow for the production of Ti‐based parts with compositions designed to reduce modulus and stress shielding while improving bone fixation and formation. The design‐to‐process lead time can be drastically shortened using AM and associated post‐processing, making possible the production of tailored implants for individual patients. This review examines the process and product characteristics of the three major metallic AM techniques and assesses the potential for these in the increased global uptake of AM in orthopedic implant fabrication.

show abstract

Section: Dldmentioning

confidence: 99%

Section: Dldmentioning

confidence: 99%

Additive Manufacturing of Titanium Alloys for Orthopedic Applications: A Materials Science Viewpoint

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Taking advantage of this idea in conjunction with the LENS™ technique, we executed high throughput (HT) processing to produce samples for this study. Previously, this technique has been used to study composition-microstructure relationships and composition-property correlations for hydrogen storage, oxidation resistance, and magnetic properties [17][18][19][20][21]. Use of elemental powder blends [22,23] avoids prealloyed powders.…”

Section: High Throughput Assays High Throughput Sample Prototypingmentioning

confidence: 99%

High Throughput Assays for Additively Manufactured Ti-Ni Alloys Based on Compositional Gradients and Spherical Indentation

Gong

Mohan

Mendoza

et al. 2017

Integr Mater Manuf Innov

View full text Add to dashboard Cite

Recent advances in additive manufacturing (AM) reveal an exciting opportunity to build materials with novel internal structures combined with intricate part geometries that cannot be achieved by traditional manufacturing approaches. The large space of potential material chemistries combined with non-equilibrium microstructures obtained in AM presents a significant challenge for a systematic exploration and optimization of the final properties exhibited by AM parts when using the existing knowledge databases established for conventionally processed materials. In this paper, we demonstrate novel high throughput assays that can be used to prototype a large library of material chemistries (and possibly different process histories) in small quantities, and subsequently apply spherical indentation stress-strain protocols to screen them for their mechanical performance. The potential of these new assays is demonstrated on a class of Ti-Ni alloys, whose Ni composition ranges between 0 and 11%wt.

show abstract

“…In LENS technology, both the degree of penetration and development of the outer surface of the element are associated with the laser operating parameters and granulometric properties of the powder used [8,23]. BSE and EDS analysis showed that the chemical composition of the base material corresponded to that of the powder used with little spontaneous oxidation of the outer surface (Figure 3b).…”

Section: Resultsmentioning

confidence: 99%

“…When executed, the device moves upward by a distance equal to its thickness so that the process of depositing another layer can begin, generating a three–dimensional layered element (Figure 1). Depending on the purpose, elementary metal powders or alloys are processed, which allow shaping the element structure and its composition gradient [7,8]. Laser engineered net shaping can also be used, not only for structural materials manufacturing, but also for fabrication of functional alloys or alloy libraries directly from elemental powders [9].…”

Section: Introductionmentioning

confidence: 99%

High-Temperature Oxidation of Fe3Al Intermetallic Alloy Prepared by Additive Manufacturing LENS

Łyszkowski

2015

Materials

View full text Add to dashboard Cite

The isothermal oxidation of Fe-28Al-5Cr (at%) intermetallic alloy microalloyed with Zr and B (<0.08 at%) in air atmosphere, in the temperature range of 1000 to 1200 °C, was studied. The investigation was carried out on the thin-walled (<1 mm) elements prepared by Laser Engineered Net Shaping (LENS) from alloy powder of a given composition. Characterization of the specimens, after the oxidation, was conducted using X-ray diffraction (XRD) and scanning electron microscopy (SEM, with back-scatter detector (BSE) and energy-dispersive X-ray spectroscopy (EDS) attachments). The investigation has shown, that the oxidized samples were covered with a thin, homogeneous α-Al2O3 oxide layers. The intensity of their growth indicates that the material lost its resistance to oxidation at 1200 °C. Structural analysis of the thin-walled components’ has not shown intensification of the oxidation process at the joints of additive layers.

show abstract

Combinatorial synthesis of alloy libraries with a progressive composition gradient using laser engineered net shaping (LENS): Hydrogen storage alloys

Cited by 37 publications

References 29 publications

Additive Manufacturing of Titanium Alloys for Orthopedic Applications: A Materials Science Viewpoint

Additive Manufacturing of Titanium Alloys for Orthopedic Applications: A Materials Science Viewpoint

High Throughput Assays for Additively Manufactured Ti-Ni Alloys Based on Compositional Gradients and Spherical Indentation

High-Temperature Oxidation of Fe3Al Intermetallic Alloy Prepared by Additive Manufacturing LENS

Contact Info

Product

Resources

About