Dynamic strength behavior of a Zr-based bulk metallic glass under shock loading

Abstract

Dynamic strength behavior of Zr51Ti5Ni10Cu25Al9 bulk metallic glass (BMG) up to 66 GPa was investigated in a series of plate impact shock-release and shock-reload experiments. Particle velocity profiles measured at the sample/LiF window interface were used to estimate the shear stress, shear modulus, and yield stress in shocked BMG. Beyond confirming the previously reported strain-softening of shear stress during the shock loading process for BMGs, it is also shown that the softened Zr-BMG still has a high shear modulus and can support large yield stress when released or reloaded from the shocked state, and both the shear modulus and the yield stress appear as strain-hardening behaviors. The work provides a much clearer picture of the strength behavior of BMGs under shock loading, which is useful to comprehensively understand the plastic deformation mechanisms of BMGs.

Aeolian Geomorphology Resources and Projects Development Suggestion in the Badain Jaran Desert

“…Badain Jaran Desert is located in the midwest of Alxa Plateau, which intensely distribute in the east of Gurinai lake which locates in the east coast of Ruoshui, west of Zongnaishan and Yabulaishan, south of Guaizi lake and north of Beidashan [3]. The desert is the site of the highest megadune in China, even all over the world and also is the only desert that distributes dense megadune groups in the world.…”

Influence of Zr50Cu50 thin film metallic glass as buffer layer on the structural and optoelectrical properties of AZO films*

“…After decades of development, plenty of MGs have been presented such as Zr-based, Cu-based, Ni-based, Mg-based, etc. [23][24][25] The Zr 50 Cu 50 binary alloy is a promising material with simple composition, strong undercooling ability, high thermal stability, and unique solidification characteristics. In this work, AZO films each with Zr 50 Cu 50 TFMG as buffer are prepared on the glass substrates by PLD.…”