1. 10-25 Recap Matthew Humbert Page 1

2. Fractology ASM Handbooks –11 – Failure Analysis and Prevention –12 –Fractogrophy –19 – Fatigue and Fracture Page 2

3. Material Limits Page 3

4. 4 th Gen Turbine Blades Operating at 1590 ºC Reducing and Oxidizing Environment PtAl TBC Convective cooling Page 4 J Gurrappa, I Gurrappa, I. Platinum Aluminide Coatings for Oxidation Resistance of Titanium Alloys PLATINUM METALS REVIEW

5. Bulk HT Processing Skull melting Plasma processing –Sintering –Melting Reactive Flame Spraying Reactive Sintering Page 5 Everything reacts with everything Anything is possible

6. Environmental Damage Hydrogen embrittlement Stainless steel sensitization Blue embrittlement –Temper embrittlement – 425C –Hot-shorting Liquid metal embrittlement Nitrogen, oxygen, and carbon embrittlement in specific materials Page 6

7. Baffle Bolt Page 7

8. Ductile to Brittle Transition Page 8 1018 mild steel

9. Giga-tonnes of Nano-Structure To make big things we need to weld –Progress with BMG’s Welding – Melting and solidifying Control microstructure during solidification –Keep enthalpy high while making entropy small Complex alloys with many components. Page 9 Y. Kawamura, Liquid phase and supercooled liquid phase welding of bulk metallic glasses, Materials Science and Engineering: A, Volumes 375–377, 15 July 2004, Pages 112-119

10. Questions Page 10