Metallic Glass

A metallic glass, also known as an amorphous metal or glassy metal, is a metallic material that lacks a crystalline structure. Bulk metals typically have a highly-ordered crystalline structure, whereas a metallic glass is amorphous in nature, much like a glass. Various methods are used to fix the metal's structure in an amorphous state, and the result is a material which possesses a number of novel properties with promising future applications.

Shear and fatigue

http://www.sciencedaily.com/releases/2009/03/090324091211.htm http://blogs.physicstoday.org/update/2009/03/confining-cracks-in-metallic-g.html http://www.msnbc.msn.com/id/29738048/