Microstructural Evolution and Functional Properties of Fe-Mn-Al-Ni Shape Memory Alloy Processed by Selective Laser Melting
| Autor: | Horst Biermann, Johannes Günther, Thomas Niendorf, M. Vollmer, Philipp Krooß, Florian Brenne, Dieter Schwarze |
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| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Microstructural evolution Structural material Materials science Metallurgy Metals and Alloys 02 engineering and technology Shape-memory alloy 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure 01 natural sciences Grain growth Mechanics of Materials 0103 physical sciences Metallic materials Thermal Selective laser melting 0210 nano-technology |
| Zdroj: | Metallurgical and Materials Transactions A. 47:2569-2573 |
| ISSN: | 1543-1940 1073-5623 |
| DOI: | 10.1007/s11661-016-3412-z |
| Popis: | In the current study, a Fe-Mn-Al-Ni shape memory alloy is processed by additive manufacturing for the first time. Microstructural evolution upon processing is strongly affected by thermal gradients and solidification velocity and, thus, by processing parameters and the actual specimen geometry. By single-step solutionizing heat treatment pronounced grain growth is initiated leading to microstructures showing good reversibility. The compressive stress–strain response revealed maximum reversible pseudo-elastic strain of about 7.5 pct. Critical steps toward further optimization of additively manufactured Fe-Mn-Al-Ni shape memory alloys are discussed. |
| Databáze: | OpenAIRE |
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