Abstract Scope |
The brittleness of bulk metallic glasses remains a significant obstacle to their widespread application [1,2]. A potential remedy is the use of nanolaminates, which combine amorphous and crystalline structures [3]. Alternatively, the heterogeneous nature of the thermal expansion coefficient in well-aged metallic glasses suggests that cyclic thermal treatment can induce internal stresses within the system, thus enhancing ductility [4]. I explore this issue in light of recent experiments and computer simulations [5].
References:
[1] Lindsay Greer, Science 267, 1947 (1995).
[2] M. Hassani et al., Phys. Rev. Lett. 123, 195502 (2019).
[3] Wei Guo et al., Phys. Rev. Lett. 113, 035501 (2014).
[4] Ketov et al. Nature 524, 200 (2015) and NGP Asia Materials 10, 137 (2018).
[5] M. Bruns, F. Varnik, Phys. Rev. Research 3, 013234 (2021) and J. Chem. Phys. 156, 234501 (2022) (2022). |