Journal ArticleDOI
Microstructure and mechanical properties of Ti‐6Al‐4V produced by electron beam melting of pre‐alloyed powders
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TLDR
In this article, the microstructural and mechanical characterization of a biomedical Ti•6Al•4V alloy produced by electron beam melting, and the study of the stability of the as-built microstructure upon heat treatment are presented.Abstract:
Purpose – The purpose of this paper is the microstructural and mechanical characterization of a biomedical Ti‐6Al‐4V alloy produced by electron beam melting, and the study of the stability of the as‐built microstructure upon heat treatment.Design/methodology/approach – Ti‐6Al‐4V alloy produced by electron beam melting has been mechanically characterized through tensile and fatigue testing. Its microstructure has been investigated by optical observation after etching and by X‐ray diffractometry analysis. The stability of the microstructure of the as‐built material has been deepened carrying out suitable heat treatments, after an analysis by dilatometry test.Findings – The microstructure of a Ti‐6Al‐4V alloy produced by electron beam melting has a very fine and acicular morphology, because of the intrinsically high‐solidification rate of the process. This microstructure is very stable, and the traditional thermal treatments cannot modify it; the microstructure changes significantly only when an amount of st...read more
Citations
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Bioinspired structural materials
TL;DR: The common design motifs of a range of natural structural materials are reviewed, and the difficulties associated with the design and fabrication of synthetic structures that mimic the structural and mechanical characteristics of their natural counterparts are discussed.
Journal ArticleDOI
A Review of Additive Manufacturing
Kaufui V. Wong,Aldo Hernandez +1 more
TL;DR: Additive manufacturing processes take the information from a computer-aided design (CAD) file that is later converted to a stereolithography (STL) file as discussed by the authors.
Journal ArticleDOI
The metallurgy and processing science of metal additive manufacturing
TL;DR: In this article, a review of additive manufacturing (AM) techniques for producing metal parts are explored, with a focus on the science of metal AM: processing defects, heat transfer, solidification, solid-state precipitation, mechanical properties and post-processing metallurgy.
Journal ArticleDOI
Heat treatment of Ti6Al4V produced by Selective Laser Melting: Microstructure and mechanical properties
TL;DR: In this paper, the effect of several heat treatments on the microstructure and mechanical properties of Ti6Al4V processed by Selective Laser Melting (SLM) is studied.
Journal ArticleDOI
Metal Additive Manufacturing: A Review of Mechanical Properties
John J. Lewandowski,Mohsen Seifi +1 more
TL;DR: A review of published data on the mechanical properties of additively manufactured metallic materials can be found in this paper, where the additive manufacturing techniques utilized to generate samples covered in this review include powder bed fusion (eBM, SLM, DMLS) and directed energy deposition (eBF3).
References
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Journal ArticleDOI
Structural, mechanical and in vitro characterization of individually structured Ti-6Al-4V produced by direct laser forming.
Dirk A. Hollander,Matthias Walter,Tobias Wirtz,Richard Martin Sellei,Bernhard Schmidt-Rohlfing,Othmar Paar,Hans-Josef Erli +6 more
TL;DR: The DLF-Ti-6Al-4V approach proved to be efficient and could be further advanced in the field of hard tissue biomaterials and matched American Society of Testing and Materials (ASTM) specifications for the usage of this alloy as medical material.
Journal ArticleDOI
Microstructure and texture evolution during solidification processing of Ti–6Al–4V
P.A. Kobryn,S. L. Semiatin +1 more
TL;DR: In this article, an extensive research program was undertaken to establish the relationships between processing conditions and microstructural characteristics and to apply finite-element-method process-modeling techniques and phenomenological microstructure-evolution modeling techniques for the prediction of micro-structure during these processes.
Journal ArticleDOI
Characterization of H13 steel produced via electron beam melting
TL;DR: In this paper, the authors describe the electron beam melting (EBM) process and present results of microstructural analyses on H13 tool steel processed via EBM, which is a direct metal free-form fabrication technique in which a 4'kW electron beam is used to melt metal powder in a layerwise fashion.
Journal ArticleDOI
Porous Ti6Al4V scaffold directly fabricating by rapid prototyping: preparation and in vitro experiment.
TL;DR: The potential of this rapid prototyping 3DF system for fabricating 3D Ti6Al4V scaffolds with regular and reproducible architecture meeting the requirements of tissue engineering and orthopedic implants is demonstrated.