Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7971591 | Materials Science and Engineering: A | 2018 | 6 Pages |
Abstract
A composite consisting of Ti-6Al-2Sn-4Zr-2Mo as matrix and Ti-42.3Al-3.8Nb-1Mo-0.1B (at%; known as γ-TiAl-TNM) as reinforcement was developed to increase the working temperature for titanium based alloys. The volume fraction (10â¯wt%, 15â¯wt%) and the particle size (< 20â¯Âµm, 20-45â¯Âµm) of the TiAl-TNM, and the sintering temperature (1100â¯Â°C, 1150â¯Â°C) were varied. It was shown, that the working temperature of Ti-6Al-2Sn-4Zr-2Mo can be increased to 650â¯Â°C by the addition of 10â¯wt% TiAl-TNM due to an elongation >â¯2% at room temperature and an increase in yield strength of 100â¯MPa in the temperature range of room temperature to 650â¯Â°C compared to Ti-6Al-2Sn-4Zr-2Mo. Furthermore, the dissolving of TiAl-TNM, which takes place already at 650â¯Â°C, does not lead to a decline in yield strength and tensile strength.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
S. Decker, J. Lindemann, L. Krüger,