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Mechanical properties of porous structures produced by selective laser melting of a Ti6Al4V alloy powder
Department of Industrial Engineering, University of Trento, Italy.
Jönköping University, School of Engineering. Department of Industrial Engineering, University of Trento, Italy.
Jönköping University, School of Engineering. Department of Industrial Engineering, University of Trento, Italy.
Department of Industrial Engineering, University of Trento, Italy.
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2018 (English)In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, ISSN 0532-8799, Vol. 65, no 8, p. 481-485Article in journal (Refereed) Published
Abstract [en]

The compression Young's modulus and strength of lattice structures with porosity between 47.8% and 82.6% produced by Selective Laser Melting (SLM) of a Ti6Al4V powder were investigated. The Young's modulus and yield strength range from 1 GPa to 20 GPa and from 10 MPa to 250 MPa, respectively. On increasing porosity, both stiffness and strength decrease. When porosity increases above 60-65%, the strength shows an accentuated decrease compared to the stiffness decrease. The absence of struts parallel to the loading direction in the lattice structure allows to achieve higher yield strength than other structures having the same Young's modulus. 

Place, publisher, year, edition, pages
Japanese Society of Powder and Powder Metallurgy , 2018. Vol. 65, no 8, p. 481-485
Keywords [en]
Mechanical properties, Porous structures, SLM, Ti6Al4V, 3D printers, Elastic moduli, Melting, Porosity, Stiffness, Ternary alloys, Titanium alloys, Yield stress, Lattice structures, Loading direction, Selective laser melting, Ti-6al-4v, Ti-6Al-4V alloy, Aluminum alloys
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:hj:diva-41493DOI: 10.2497/jjspm.65.481Scopus ID: 2-s2.0-85052564232OAI: oai:DiVA.org:hj-41493DiVA, id: diva2:1249262
Available from: 2018-09-18 Created: 2018-09-18 Last updated: 2019-03-26Bibliographically approved

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