Stochastic metallic-glass cellular structures exhibiting benchmark strength.
By identifying the key characteristic "structural scales" that dictate the resistance of a porous metallic glass against buckling and fracture, stochastic highly porous metallic-glass structures are designed capable of yielding plastically and inheriting the high plastic yield strength of the amorphous metal. The strengths attainable by the present foams appear to equal or exceed those by highly engineered metal foams such as Ti-6Al-4V or ferrous-metal foams at comparable levels of porosity, placing the present metallic-glass foams among the strongest foams known to date.
Demetriou
Marios D
MD
Keck Laboratory, California Institute of Technology, Pasadena, California 91125, USA. marios@caltech.edu
Veazey
Chris
C
Harmon
John S
JS
Schramm
Joseph P
JP
Johnson
William L
WL