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
Ductility of a Ti‐6Al‐4V alloy produced by selective laser melting of prealloyed powders
Luca Facchini,Emanuele Magalini,Pierfrancesco Robotti,Alberto Molinari,Simon Höges,Konrad Wissenbach +5 more
TL;DR: In this article, the change in the mechanical properties (and in particular in ductility), with the microstructure, of a biomedical Ti•6Al•4V alloy produced by different variants of selective laser melting (SLM) has been mechanically characterized through tensile testing.
Journal ArticleDOI
Microstructural evolution in laser-deposited multilayer Ti-6Al-4V builds: Part I. Microstructural characterization
S. M. Kelly,Stephen L. Kampe +1 more
TL;DR: In this article, the macro and microstructure of laser-deposited Ti-6Al-4V has been investigated to determine the evolution of unique microstructural features in mutilayer builds.
Journal ArticleDOI
The effect of laser power and traverse speed on microstructure, porosity, and build height in laser-deposited Ti-6Al-4V
Journal ArticleDOI
The laser additive manufacture of Ti-6Al-4V
P. A. Kobryn,S. L. Semiatin +1 more
TL;DR: In this paper, the relationship between LAM processing parameters and microstructure in as-deposited Ti-6Al-4V was investigated, and the results presented in this paper provide a first look at the relationships between the two parameters.
Journal ArticleDOI
Additive manufactured Ti-6Al-4V using welding wire: comparison of laser and arc beam deposition and evaluation with respect to aerospace material specifications
TL;DR: In this article, the results of two different wire-based additive-layer manufacturing systems are compared: in one system Ti-6Al4V is deposited by a Nd:YAG laser beam, in the other by an arc beam (tungsten inert gas process).