- Tytuł:
- Phase Transition and Plasticity Enhancement of Ti-Cu-Based Bulk Metallic Glasses
- Autorzy:
-
Wang, L.
Wang, X.
Zhang, G.
Sun, X. - Powiązania:
- https://bibliotekanauki.pl/articles/356824.pdf
- Data publikacji:
- 2018
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
bulk metallic glasses
phase transition
annealing
stability
plasticity - Opis:
- In this paper, we report the complex crystallization kinetics of phase transition happening in Ti-Cu-based bulk metallic glasses (BMGs), which play significant roles in the glass formation with respect to their low reduced glass transition temperatures, Trg. The first exothermic event just occurs when annealing the BMG samples in the supercooled liquid region, leading to the Avrami exponent deviating from conventional modes affected by the residual amorphous phase. For Ti43Cu43Ni7Zr7 BMG, the plasticity can be improved by pre-annealing at a sub-Tg temperature of 623K (≈50K below Tg) for 0.5 hour, however, deteriorated by 1 hour annealing, which could be related to the change in stability of this BMG against crystallization with different pre-annealing times.
- Źródło:
-
Archives of Metallurgy and Materials; 2018, 63, 1; 387-391
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł