The Strengthening Effect of Phase Boundaries in a Severely Plastically Deformed Ti-Al Composite Wire

Marr T, Freudenberger J, Maier V, Höppel HW, Göken M, Schultz L (2014)

Publication Status: Published

Publication Type: Journal article

Publication year: 2014

Journal

Metals MDPI

Publisher: MDPI AG

Book Volume: 4

Pages Range: 37-54

Journal Issue: 1

DOI: 10.3390/met4010037

Abstract

An accumulative swaging and bundling technique is used to prepare composite wires made of Ti and an Al alloy. These wires show reasonable higher yield stresses than expected from the pure material flow curves. The additional strengthening in the composite is analyzed using nanoindentation measurements, tensile testings and investigations of the microstructure. In addition, these properties are analyzed in relation to the fracture surface of the mechanically tested wires. Additional strengthening due to the presence of phase boundaries could be verified. Indications for residual stresses are found that cause a global hardness gradient from the center to the wire rim. Finally, the yield stress of the wires are calculated based on local hardness measurements.

Authors with CRIS profile

Verena Maier Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften) Heinz Werner Höppel Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften) Mathias Göken Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Related research project(s)

Layered Lightweight Composites and Graded Materials (EXC315 EAM (E3)) Exzellenz-Cluster Engineering of Advanced Materials Nov. 1, 2012 - Oct. 31, 2017

Involved external institutions

Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden e.V. (IFW) / Leibniz Institute for Solid State and Materials Research Dresden DE Germany (DE)

How to cite

APA:

Marr, T., Freudenberger, J., Maier, V., Höppel, H.W., Göken, M., & Schultz, L. (2014). The Strengthening Effect of Phase Boundaries in a Severely Plastically Deformed Ti-Al Composite Wire. Metals, 4(1), 37-54. https://dx.doi.org/10.3390/met4010037

MLA:

Marr, Tom, et al. "The Strengthening Effect of Phase Boundaries in a Severely Plastically Deformed Ti-Al Composite Wire." Metals 4.1 (2014): 37-54.

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