New La-based glass-crystal ex situ composites with enhanced toughness

作者：Madge Shantanu V^*; Sharma Parmanand; Louzguine Luzgin Dmitri V; Greer A Lindsay; Inoue Akihisa

来源：Scripta Materialia, 2010, 62(4): 210-213.

DOI：10.1016/j.scriptamat.2009.10.029

• Bulk metallic glasses
• Toughness
• Composites
• Plasticity
• La-based glasses

Ex situ composites have been synthesized by reinforcing the brittle La(55)Al(25)Cu(10)Ni(10) bulk metallic glass with varying volume fractions of spherical Ti particles. Ti is effective in significantly enhancing toughness, and optimum properties are obtained with just 20 vol.% Ti, where the compressive failure strain reaches 15% while maintaining a high strength (700 MPa). The combination of properties achieved appears to be the best among all known La-based glassy composites, which is explained in terms of the toughness of the reinforcement used.

• 出版日期2010-2