Details
| Original language | English |
|---|---|
| Pages (from-to) | 7962-7967 |
| Number of pages | 6 |
| Journal | Materials Science and Engineering A |
| Volume | 528 |
| Issue number | 27 |
| Publication status | Published - 22 Jul 2011 |
| Externally published | Yes |
Abstract
Cellular materials are promising candidates for load adapted light-weight structures. Direct manufacturing (DM) tools are effective methods to produce non-stochastic structures. Many DM studies currently focus on optimization of the geometric nature of the structures obtained. The literature available so far reports on the mechanical properties but local deformation mechanisms are not taken into account. In order to fill this gap, the current study addresses the deformation behavior of a lattice structure produced by selective laser melting (SLM) on the local scale by means of a comprehensive experimental in situ approach, including electron backscatter diffraction, scanning electron microscopy and digital image correlation. SLM-processed as well as heat treated lattice structures made from TiAl6V4 alloy were employed for mechanical testing. It is demonstrated that the current approach provides means to understand the microstructure-mechanical property-local deformation relationship to allow for optimization of load adapted lattice structures.
Keywords
- Digital image correlation, Direct manufacturing, Lattice structures, Microstructure, Selective laser melting
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Materials Science and Engineering A, Vol. 528, No. 27, 22.07.2011, p. 7962-7967.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - In situ characterization of the deformation and failure behavior of non-stochastic porous structures processed by selective laser melting
AU - Gorny, B.
AU - Niendorf, T.
AU - Lackmann, J.
AU - Thoene, M.
AU - Troester, T.
AU - Maier, H. J.
PY - 2011/7/22
Y1 - 2011/7/22
N2 - Cellular materials are promising candidates for load adapted light-weight structures. Direct manufacturing (DM) tools are effective methods to produce non-stochastic structures. Many DM studies currently focus on optimization of the geometric nature of the structures obtained. The literature available so far reports on the mechanical properties but local deformation mechanisms are not taken into account. In order to fill this gap, the current study addresses the deformation behavior of a lattice structure produced by selective laser melting (SLM) on the local scale by means of a comprehensive experimental in situ approach, including electron backscatter diffraction, scanning electron microscopy and digital image correlation. SLM-processed as well as heat treated lattice structures made from TiAl6V4 alloy were employed for mechanical testing. It is demonstrated that the current approach provides means to understand the microstructure-mechanical property-local deformation relationship to allow for optimization of load adapted lattice structures.
AB - Cellular materials are promising candidates for load adapted light-weight structures. Direct manufacturing (DM) tools are effective methods to produce non-stochastic structures. Many DM studies currently focus on optimization of the geometric nature of the structures obtained. The literature available so far reports on the mechanical properties but local deformation mechanisms are not taken into account. In order to fill this gap, the current study addresses the deformation behavior of a lattice structure produced by selective laser melting (SLM) on the local scale by means of a comprehensive experimental in situ approach, including electron backscatter diffraction, scanning electron microscopy and digital image correlation. SLM-processed as well as heat treated lattice structures made from TiAl6V4 alloy were employed for mechanical testing. It is demonstrated that the current approach provides means to understand the microstructure-mechanical property-local deformation relationship to allow for optimization of load adapted lattice structures.
KW - Digital image correlation
KW - Direct manufacturing
KW - Lattice structures
KW - Microstructure
KW - Selective laser melting
UR - http://www.scopus.com/inward/record.url?scp=84860391837&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2011.07.026
DO - 10.1016/j.msea.2011.07.026
M3 - Article
AN - SCOPUS:84860391837
VL - 528
SP - 7962
EP - 7967
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
SN - 0921-5093
IS - 27
ER -