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
TLDR
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.About:
This article is published in Acta Materialia.The article was published on 2010-03-01. It has received 414 citations till now. The article focuses on the topics: Titanium aluminide & Intermetallic.read more
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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
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.
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Additive manufacturing of metals
TL;DR: In this paper, the authors describe the complex relationship between additive manufacturing processes, microstructure and resulting properties for metals, and typical microstructures for additively manufactured steel, aluminium and titanium are presented.
Journal ArticleDOI
Additive manufacturing: technology, applications and research needs
Nannan Guo,Ming-Chuan Leu +1 more
TL;DR: Additive manufacturing (AM) technology has been researched and developed for more than 20 years as mentioned in this paper, and significant progress has been made in the development and commercialization of new and innovative AM processes, as well as numerous practical applications in aerospace, automotive, biomedical, energy and other fields.
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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.
References
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Gamma titanium aluminides
TL;DR: The first International Symposium on Gamma Titanium Aluminides (ISGTA) was held in conjunction with the TMS '95 Annual Meeting, 13-16 February 1995, Las Vegas, under the sponsorship of the Structural Materials Division--Titanium Committee as discussed by the authors, which covered almost the entire aspects of the current gamma technology such as fundamentals, alloy development and design, process development, microstructure and property evaluation, and applications.
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High-resolution electron microscope study of lamellar boundaries in Ti-rich TiAl polysynthetically twinned crystals
TL;DR: In this paper, the lamellar structure of Ti-rich TiAl has been investigated on an atomistic scale by high-resolution electron microscopy (HERM) images taken at TiAl [1 1 0] /Ti3Al[11 2 0] interfaces.