Journal
MATERIALS
Volume 12, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/ma12040587
Keywords
high-entropy alloys; physical vapour deposition (PVD); metallic glass
Categories
Funding
- Swedish Research Council [2018-04834]
- Vinnova [2018-04834] Funding Source: Vinnova
- Swedish Research Council [2018-04834] Funding Source: Swedish Research Council
Ask authors/readers for more resources
In this study, we show that the phase formation of HfNbTiVZr high-entropy thin films is strongly influenced by the substrate temperature. Films deposited at room temperature exhibit an amorphous microstructure and are 6.5 GPa hard. With increasing substrate temperature (room temperature to 275 degrees C), a transition from an amorphous to a single-phased body-centred cubic (bcc) solid solution occurs, resulting in a hardness increase to 7.9 GPa. A higher deposition temperature (450 degrees C) leads to the formation of C14 or C15 Laves phase precipitates in the bcc matrix and a further enhancement of mechanical properties with a peak hardness value of 9.2 GPa. These results also show that thin films follow different phase formation pathways compared to HfNbTiVZr bulk alloys.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available