Abstract
By replacing Be with Cu in ternary Ti-Zr-Be alloys, new centimeter-sized quaternary Ti-based bulk metallic glasses (BMGs) have been successfully synthesized in Ti<inf>41</inf>Zr<inf>25</inf>Be<inf>34-x</inf>Cu<inf>x</inf> (x = 2, 4, 6 and 8 at. %) and Ti<inf>45</inf>Zr<inf>20</inf>Be<inf>35-x</inf>Cu<inf>x</inf> (x = 2, 4, 6, 8 and 10 at. %) alloys. With the Cu addition, the glass-forming ability (GFA), the supercooled liquid range and the yield strength of the ternary Ti-Zr-Be glassy alloys are obviously improved. Among all the developed glassy alloys in the present study, the Ti<inf>41</inf>Zr<inf>25</inf>Be<inf>28</inf>Cu<inf>6</inf> BMG has a critical diameter of 15 mm, which is the largest size in the quaternary Ti-based BMGs. The experimental results show that Cu is an effective element for improving the GFA of the Ti-Zr-Be glassy alloys.
| Original language | English |
|---|---|
| Pages (from-to) | 533-538 |
| Number of pages | 6 |
| Journal | Journal of Alloys and Compounds |
| Volume | 647 |
| DOIs | |
| Publication status | Published - 2015 Jul 1 |
Keywords
- Bulk metallic glasses
- Glass-forming ability
- Mechanical properties
- Thermal stability
- Ti-based alloys
ASJC Scopus subject areas
- Mechanical Engineering
- Mechanics of Materials
- Materials Chemistry
- Metals and Alloys