John Company

AAWSAP DIRD, Metallic Glasses for Aerospace Applications, December 2009

DOW-UAP-D117 · page 4 of 30

Page 4 of 30 of DOW-UAP-D117

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Current Challenges and Prospects for the Future ................................................. 20
Alloy Design ..................................................................................................... 20
Thermophysical Properties and Thermoplastic Processing ............................... 20
Composites and the Quest for Ductility .................................................... ........... 21
Summary and Recommendations ......................................................................... 22
Figures
1. Amorphous Versus Crystalline Structure ............................................................ 1
2. Critical Cooling Rate ........................................................................................... 2
3. Examples of Processing of Metallic Glasses ........................................................ 4
4. Shear Bands ....................................................................................................... 8
5. Fatigue Limit of Metallic-Glass-Matrix Composites ........................................... 10
6. Deformation Map for a Metallic Glasses............................................................ 11
7. Cast Metallic Glass Wedge ................................................................................ 13
8. Microstructure of In Situ Metallic Glass Matrix Composite................................ 15
9. Materials Property Charts................................................................................. 18
Tables
1. Selected Bulk Glass-Forming Alloys.................................................................... 3
2. Comparison of Strengths of Amorphous and Crystalline Aluminum Alloys ......... 7
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