2. Queen’s University Belfast Crest; Coat of Arms; Emblem

3. Queen’s University Belfast Lanyon Building

4. A model approach to metals Wei SHA Professor of Materials Science http://space.qub.ac.uk:8077/cber/Sha

5. Metals The most important materials

6. Other materials Not for the same jobs

7. Microstructure BigSmall

8. Microstructure Heat treatment: hardness and precipitation Maraging steels: Modelling of microstructure, properties and applications. Sha, Guo

9. Microstructure Heat treatment: hardness and precipitation Maraging steels: Modelling of microstructure, properties and applications. Sha, Guo

10. Low nickel maraging steel Fe-12.94Ni-1.61Al-1.01Mo-0.23Nb-0.046C Sha, Li, Wilson, Materials Science and Technology, 27, 2011, 983

11. Gasar Gas-reinforced metals Drenchev, Sobczak, Malinov, Sha, Materials Science and Technology, 22, 2006, 1135

12. Computer software systems Predicting microstructures Predicting properties Predicting the effect of metal processing

14. Modelling methodologies 1)The Johnson-Mehl-Avrami method and its adaption to continuous cooling and heating 2)Finite element method 3)Phase field method 4)Atomistic simulation 5)Neural network method 6)Surface engineering products Titanium alloys: Modelling of microstructure, properties and applications. Sha, Malinov

15. Neural network NaturalArtificial Input Layer Hidden Layer Output Layer Neuron Neural Network The human brain contains 10 10 – 10 11 neurons Sha, Malinov, ASM Handbook, 22A, 2009, 553

16. Class test Pass the 9 dots with 3 changes of direction Outside the box.

17. Titanium alloy Phase transformation Titanium alloys: Modelling of microstructure, properties and applications. Sha, Malinov

18. Furnace Time-temperature path In-situ monitoring The Model Example of simulation and monitoring Nucleation and growth of the  phase in Ti6242 Titanium alloys: Modelling of microstructure, properties and applications. Sha, Malinov

19. Titanium aluminide Transmission electron microscopy and analysis Titanium alloys: Modelling of microstructure, properties and applications. Sha, Malinov

20. Titanium aluminide Phase field computer simulation Titanium alloys: Modelling of microstructure, properties and applications. Sha, Malinov

21. Nickel-phosphorus deposits As-deposited 400  C 800  C Chemical vessels and valves Coaxial electrical connectors Waveguide components (guide electromagnetic or sound) Worm feed shafts Airframes Textile machinery Electroless copper and nickel-phosphorus plating. Sha, Wu, Keong

22. Electroless copper Printed circuit boards (PCB) Electroless copper and nickel-phosphorus plating. Sha, Wu, Keong

23. Industrial applications Optimization of the alloy composition Optimisation Criteria Trained Neural Network Solution Loops for Heat Treatment Loops for Temperature Loops for Alloy Composition Find Alloy composition with max strength at 420°C Fix Heat treatment = Annealing T = 420°C Sn, Cr, Fe, Si, Nb, Mn = 0; O = 0.12 Vary Al, Mo, Zr, V Solution Al = 5.8; Mo = 7.3; Zr = 5.2; V = 0 Tensile strength (420°C) = 932 MPa; Yield strength = 665 MPa; Elongation = 10%; Modulus of elasticity = 94 GPa; Fatigue strength = 448 MPa; Fracture toughness = 101 MPa m 1/2 Sha, Malinov, ASM Handbook, 22A, 2009, 553

24. Industrial applications Centrifugal casting process of composite International Conference on Composites and Nanocomposites, 2011, India

25. 10 s radius r vol. fraction 5 s radius r vol. fraction 15 s radius r vol. fraction 0 s radius r vol. fraction 25 s, completed radius r vol. fraction 20 s radius r vol. fraction Industrial applications SiC particle distribution during casting of Al alloy International Conference on Composites and Nanocomposites, 2011, India

26. Industrial applications Hot spot and gas cavity in centrifugal casting Hot spot Gas cavity International Conference on Composites and Nanocomposites, 2011, India

27. Industrial applications Gas nitriding of titanium alloys μ Titanium alloys: Modelling of microstructure, properties and applications. Sha, Malinov http://space.qub.ac.uk:8077/cber/Sha