Defense Intelligence Reference Document Metallic Glasses For Aerospace Applications

“metallic”29 pages

• p. 1 …Defense Intelligence Reference Document Acquisition Threat Support Metallic Glasses: Status and Prospects for Aerospace Applications UNCLASSIFIED…
• p. 2 UNCLASSIFIEDh'FOA OFFili6ilil1k WEE o•lb>f Metallic Glasses: Status and Prospects for Aerospace Applications Prepared…
• p. 3 …12 Metallic Glass Matrix Composites ......................................................................... 13 Processing and Structure of Composites ..... ~ .................................................... 13 Ex Situ Composites ............................................................................................ 14…
• p. 4 …Examples of Processing of Metallic Glasses ........................................................ 4 4. Shear Bands ....................................................................................................... 8 5. Fatigue Limit of Metallic…
• p. 5 UNCLASSIFIED/.'FOR Qffili&l.t.k Uli& e•lk>J Metallic Glasses: Status and Prospects for…
• p. 6 …in all these areas, and that metallic glasses and metallic glass matrix composites will see increasing…
• p. 7 UNCLASSIFIED,'} I Clll err1e1111t YSI 8Pllsit.f Metallic Glasses STRUCTURE The atomic-scale structure of most…
• p. 8 …Metallic crystals nucleate and grow quickly, making production of a metallic glass more challenging. 2 UNCLASSIFIED…
• p. 9 UNCLASSIFIED//F8R IFFH!JIAL U91!! 8Ht¥ One way to quantify the ability of a metallic alloy…
• p. 10 …GFFl61ilill WSE eP•tY Casting and Molding Like other alloys, metallic glasses can be cast into…
• p. 11 …The use of fasteners and adhesives is much the same for metallic glasses as for any…
• p. 12 …In this section, we review the mechanical behavior of metallic glasses, with particular attention to properties…
• p. 13 …In any loading geometry where the metallic glass experiences significant tensile loading, fracture occurs on a…
• p. 14 …Produced by bending of a zirconium-based metallic glass. 14 Fracture Toughness Fracture toughness is a…
• p. 15 UNCLASSIFIED,} FOR OFFICIAL tl91! 9HI!'{ Even some metallic glasses with reasonable toughness may be embrittled by…
• p. 16 …Fatigue Limit of Metallic Glasses and Metallic-Glass-Matrix Composites. Fatigue life data for single-phase…
• p. 17 …Deformation Map for Metallic Glasses. As a function of temperature (normalized to the glass transltlon temperature…
• p. 18 …Magnetic, Electrical, Optical, Thermal, and Acoustic Although most of the current interest in metallic glasses centers…
• p. 19 …Wedge of a zirconium-based bulk metallic glass produced by casting. Note the sntny metallic luster…
• p. 20 …One of the most promising recent advances in the metallic glass field is the development of…
• p. 21 …The size of the plastic zone varies from ~ 1 μm for "intrinsically brittle" metallic glasses to…
• p. 22 …For instance, monolithic titanium-based metallic glasses (like all metallic glasses) have essentially zero tensile ductility…
• p. 23 …Figure 9 illustrates the mechanical properties of metallic glasses and metallic glass matrh< composites compared with…
• p. 24 …bath normalized to density) of metallic glasses (yellow) and dendrltic metallic glass matrix composites (red) compared…
• p. 25 …A final possibility is that metallic glasses might be combined with polymer composites into metal-fiber…
• p. 26 …Attempts to make aluminum-based metallic glass components by consolidating amorphous powders have met with limited…
• p. 27 …This ease of processing could offset the higher raw materials costs for metallic glasses, making them…
• p. 28 …Summary and Recommendations Metallic glasses combine some of the advantageous mechanical properties of metals- strength, stiffness…
• p. 29 …Liu, Chapter 4 in Bulk Metallic Glasses, .M. Miller and P. K. Liaw, eds. (Springer, 2009…