Tailoring selective laser melting process parameters for NiTi implants
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Author (Corporation)
Publication date
12.2012
Typ of student thesis
Course of study
Type
01A - Journal article
Editors
Editor (Corporation)
Supervisor
Parent work
Journal of Materials Engineering and Performance
Special issue
DOI of the original publication
Link
Series
Series number
Volume
21
Issue / Number
12
Pages / Duration
2519 - 2524
Patent number
Publisher / Publishing institution
Springer
Place of publication / Event location
Edition
Version
Programming language
Assignee
Practice partner / Client
Abstract
Complex-shaped NiTi constructions become more and more essential for biomedical applications especially for dental or cranio-maxillofacial implants. The additive manufacturing method of selective laser melting allows realizing complex-shaped elements with predefined porosity and three-dimensional micro-architecture directly out of the design data. We demonstrate that the intentional modification of the applied energy during the SLM-process allows tailoring the transformation temperatures of NiTi entities within the entire construction. Differential scanning calorimetry, x-ray diffraction, and metallographic analysis were employed for the thermal and structural characterizations. In particular, the phase transformation temperatures, the related crystallographic phases, and the formed microstructures of SLM constructions were determined for a series of SLM-processing parameters. The SLM-NiTi exhibits pseudoelastic behavior. In this manner, the properties of NiTi implants can be tailored to build smart implants with pre-defined microarchitecture and advanced performance.
Keywords
Biomaterials, Graded properties, Mechanical testing, Metallography, NiTi, Pseudoelasticity, Selective laser melting
Subject (DDC)
Event
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ISBN
ISSN
1059-9495
1544-1024
1544-1024
Language
English
Created during FHNW affiliation
Yes
Strategic action fields FHNW
Publication status
Published
Review
Peer review of the complete publication
Open access category
Closed
License
Citation
Bormann, T., Schumacher, R., Müller, B., Mertmann, M., & de Wild, M. (2012). Tailoring selective laser melting process parameters for NiTi implants. Journal of Materials Engineering and Performance, 21(12), 2519–2524. https://doi.org/10.1007/s11665-012-0318-9