Journal ArticleDOI
The laser additive manufacture of Ti-6Al-4V
P. A. Kobryn,S. L. Semiatin +1 more
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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.Abstract:
Laser additive manufacturing (LAM) is a manufacturing technique with cost-reduction potential for titanium aerospace components. The mechanical properties of LAM Ti-6Al-4V have been investigated extensively, but little work on microstructure evolution has been performed to date. The results presented here provide a first look at the relationships between LAM processing parameters and microstructure in as-deposited Ti-6Al-4V.read more
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Microstructure and tensile properties of laser melting deposited Ti–5Al–5Mo–5V–1Cr–1Fe near β titanium alloy
TL;DR: In this article, a near β titanium alloy was fabricated by laser melting deposition (LMD), and the evolution of its macrostructure and microstructure during LMD process were systematically studied.
Journal ArticleDOI
Fatigue of additive manufactured Ti-6Al-4V, Part I: The effects of powder feedstock, manufacturing, and post-process conditions on the resulting microstructure and defects
Jonathan Pegues,Shuai Shao,Nima Shamsaei,Niloofar Sanaei,Ali Fatemi,Derek H. Warner,P. Li,Nam Phan +7 more
TL;DR: In this paper, the powder-process-structure relationships and how powder feedstock, manufacturing, and post-processing conditions can affect the microstructure and defect features that ultimately contribute to the fatigue performance of Ti-6Al-4V parts.
Journal ArticleDOI
Inducing Stable α + β Microstructures during Selective Laser Melting of Ti-6Al-4V Using Intensified Intrinsic Heat Treatments
Pere Barriobero-Vila,Pere Barriobero-Vila,Joachim Gussone,Jan Haubrich,Stefanie Sandlöbes,Julio Cesar da Silva,Peter Cloetens,Norbert Schell,Guillermo Requena,Guillermo Requena +9 more
TL;DR: In this work, an intensified intrinsic heat treatment is applied during selective laser melting of Ti-6Al-4V powder using a scanning strategy that combines porosity-optimized processing with a very tight hatch distance, reflecting a contribution towards simultaneous selective lasers melting-manufacturing and heat treatment for fabrication ofTi-6 alumnus parts.
Journal ArticleDOI
Effect of build direction on the fracture toughness and fatigue crack growth in selective laser melted Ti-6Al-4 V
Paul D. Edwards,Mamidala Ramulu +1 more
TL;DR: In this paper, the authors evaluated fracture toughness and fatigue crack growth characteristics in selective laser-melted titanium 6Al-4V materials as a follow-on to a previous study on high cycle fatigue.
Journal ArticleDOI
Towards understanding grain nucleation under additive manufacturing solidification conditions
Arvind Prasad,Lang Yuan,Peter D. Lee,Mitesh N. Patel,Dong Qiu,Mark Alan Easton,David H. StJohn +6 more
TL;DR: In this article, the effect of high thermal gradients and cooling rates on equiaxed grain nucleation and growth in conditions similar to those experienced during additive manufacturing (AM) processes was analyzed.
References
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Book
Fundamentals of Solidification
W. Kurz,D. J. Fisher +1 more
TL;DR: In this article, Atom Transfer at the Solid/Liquid Interface Morphological Instability of a Solid/ Liquid Interface Solidification Microstructure: Cells and Dendrites SolidificationMicrostructure, Eutectic and Peritectic Solute Redistribution Rapid Solidization Microstructures Summary Appendices Symbols Index
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Titanium: A Technical Guide
TL;DR: In this paper, the authors provide a summary of the most useful information required to understand titanium and its alloys and present a review of the significant features of the metallurgy and application of titanium and alloys.
Journal ArticleDOI
On the process of transition of the cubic-body-centered modification into the hexagonal-close-packed modification of zirconium
TL;DR: In this paper, the process of transition of the cubic-body-centred modification into the hexagonal-close-packed modification of zirconium can be described by means of a combination of shearing- and dilatation-processes parallel to definite crystallographic directions.
Journal ArticleDOI
The effect of laser power and traverse speed on microstructure, porosity, and build height in laser-deposited Ti-6Al-4V
Solid Freeform Fabrication Symposium (9th) Held at The University of Texas in Austin on August 11-13, 1998; 1998 Report and Proceedings
D. L. Bourell,J. J. Beaman +1 more
TL;DR: The Ninth Solid Freeform Fabrication Symposium (SFF) as mentioned in this paper was held at The University of Texas in Austin on August 11-13, 1998, attended by over 150 national and international researchers.