Korrelation mikrostruktureller und mechanischer Eigenschaften von Ti-Fe-Legierungen

• Main Author: Schlieter, Antje
• Other Authors: Technische Universität Dresden, Fakultät Maschinenwesen
• Format: Doctoral Thesis
• Language: deu
• Published: Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden 2012
• Subjects: Ti-Fe-Legierung; ultrafeinkörnig; Druckfestigkeit; Nanostrukturierte Materialien; rasche Erstarrung; eutektische System; Mikrostruktur; Kalttiegelanlage; compressive strengh; Ti-Fe-alloy; rapid solidification; cold crucible; bridgeman; eutectic alloy; microstructural characterisation; non equilibrium; ddc:620; rvk:ZM 4300
• Online Access: http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-91907; http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-91907; http://www.qucosa.de/fileadmin/data/qucosa/documents/9190/Diss_Schlieter_Endversion_mitU.pdf

The effect of solidification conditions on microstructural and mechanical properties of eutectic TiFe alloy cast under different conditions was examined. Samples exhibit different ultrafine eutectic structures (β-Ti(Fe) solid solution + TiFe). Different cooling conditions lead to the evolution of ultrafine eutectic oval-shaped colonies or elongated lamellar colonies with preferred orientation. Isotropic as well as anisotropic mechanical properties were obtained. Alloys exhibit compressive strengths between 2200 and 2700 MPa and plastic strains between 7 and 19 pct. in compression.