Journal ArticleDOI
Electron Beam Additive Manufacturing of Titanium Components: Properties and Performance
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TLDR
In this paper, the fatigue properties of Ti-6Al-4V specimens and components produced by Electron Beam additive manufacturing were evaluated and it was found that the fatigue performance of specimens produced by additive manufacturing is significantly lower than that of wrought material due to defects such as porosity and surface roughness.Abstract:
This research evaluates the fatigue properties of Ti-6Al-4V specimens and componentsproduced by Electron Beam additive manufacturing. It was found that the fatigue per-formance of specimens produced by additive manufacturing is significantly lower thanthat of wrought material due to defects such as porosity and surface roughness. However,evaluation of an actual component subjected to design fatigue loads did not result in pre-mature failure as anticipated by specimen testing. Metallography, residual stress, staticstrength and elongation, fracture toughness, crack growth, and the effect of post process-ing operations such as machining and peening on fatigue performance were alsoevaluated. [DOI: 10.1115/1.4025773]Keywords: additive manufacturing, electron beam, titanium, fatigue, fractureread more
Citations
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Journal ArticleDOI
Additive manufacturing of metallic components – Process, structure and properties
Tarasankar Debroy,Huiliang Wei,J.S. Zuback,T. Mukherjee,John W. Elmer,John O. Milewski,Allison M. Beese,Alexander E. Wilson-Heid,Amitava De,Wei Zhang +9 more
TL;DR: A review of the emerging research on additive manufacturing of metallic materials is provided in this article, which provides a comprehensive overview of the physical processes and the underlying science of metallurgical structure and properties of the deposited parts.
Journal ArticleDOI
Additive manufacturing of Ti6Al4V alloy: A review
Shunyu Liu,Yung C. Shin +1 more
TL;DR: In this paper, the recent progress on Ti6Al4V fabricated by three mostly developed additive manufacturing techniques-directed energy deposition (DED), selective laser melting (SLM) and electron beam melting (EBM)-is thoroughly investigated and compared.
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).
Journal ArticleDOI
Anisotropic tensile behavior of Ti-6Al-4V components fabricated with directed energy deposition additive manufacturing
TL;DR: In this article, the authors investigated the anisotropic mechanical properties of a Ti-6Al-4V three-dimensional cruciform component fabricated using a directed energy deposition additive manufacturing (AM) process.
Journal ArticleDOI
Anisotropy and heterogeneity of microstructure and mechanical properties in metal additive manufacturing: A critical review
TL;DR: A broad range of metal additive manufacturing (AM) technologies and reviews literatures on the anisotropy and heterogeneity of microstructure and mechanical properties for metal AM parts are presented in this paper.
References
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Journal ArticleDOI
Mechanical evaluation of porous titanium (Ti6Al4V) structures with electron beam melting (EBM).
TL;DR: It is found that the porous structures produced by the electron beam melting process present a promising rapid manufacturing process for the direct fabrication of customized titanium implants for enabling personalized medicine.
Journal ArticleDOI
Microstructures and mechanical properties of electron beam-rapid manufactured Ti–6Al–4V biomedical prototypes compared to wrought Ti–6Al–4V
Lawrence E Murr,E. V. Esquivel,Stella Quinones,Sara M. Gaytan,M.I. Lopez,E. Martinez,Francisco Medina,D.H. Hernandez,E. Martinez,J.L. Martinez,S.W. Stafford,D. Brown,T. Hoppe,W. Meyers,U. Lindhe,Ryan B. Wicker +15 more
TL;DR: In this paper, an exploratory characterization and comparison of electron-beam melted (EBM) or rapid manufacturing (RM) of Ti-6Al-4V components (from nominal 30mm diameter powder) with wrought products is presented.
Journal ArticleDOI
Residual Stress within Metallic Model Made by Selective Laser Melting Process
TL;DR: In this paper, the authors measured the distribution of residual stress within the model and proposed some methods for reducing the residual stress in order to improve the mechanical properties and dimensional accuracy of the steel model produced by the selective laser melting process.
Journal ArticleDOI
Wire based additive layer manufacturing: Comparison of microstructure and mechanical properties of Ti–6Al–4V components fabricated by laser-beam deposition and shaped metal deposition
TL;DR: In this paper, the microstructure and the mechanical properties of Ti-6Al-4V components, fabricated by two different wire-based additive layer manufacturing techniques, namely laser-beam deposition and shaped metal deposition, are presented.
Journal ArticleDOI
Characterization of titanium aluminide alloy components fabricated by additive manufacturing using electron beam melting
Lawrence E Murr,Sara M. Gaytan,A. Ceylan,E. Martinez,J.L. Martinez,D.H. Hernandez,B.I. Machado,D. A. Ramirez,Francisco Medina,S. Collins,Ryan B. Wicker +10 more
TL;DR: The residual microindentation (Vickers) hardness (HV) averaged 4.1 GPa, corresponding to a nominal yield strength of ∼1.4 GPa (∼HV/3), and a specific yield strength (specific yield strength) of 0.37 GPa cm3 g−1 (for a density of 3.76 g cm−3), in contrast to 0.27 GPa kg−1 for EBM-fabricated Ti−6Al−4V components.