Reinforcement of nanoglasses by interface strengthening. (December 2017)

• Record Type: Journal Article
• Authors: Kalcher, Constanze; Adjaoud, Omar; Rohrer, Jochen; Stukowski, Alexander; Albe, Karsten
• Is Part Of: Scripta materialia. Number 141(2017)
• Page Start: 115
• Page End: 119
• Publication Date: 2017-12
• Subjects: Metallic glass -- Grain interfaces -- Tension test -- Molecular dynamics -- Nanoglass; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2017.08.004
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Nanoglasses consist of glassy grains connected by an amorphous interface. While internal interfaces in nanoglasses help to prevent brittle failure, they are usually not beneficial to the glasses overall strength. In this molecular dynamics study, we manipulate the glass–glass interfaces of a Cu–Zr nanoglass, such that they are replaced by stronger crystalline interphases. Analogous to grain boundary strengthening in crystalline materials, we show that it is possible to reinforce the nanoglass without compromising its ductility. Graphical Abstract: