1. The missing link between connecting microstructure to mechanical properties: Going beyond Orowan

2. Mechanical Properties
Microstructure
Existing dislocations
Inclusions, particles and point-defects
Mechanical Properties
Tensile strength
Fracture
Creep
Fatigue
Grains & GBs
Voids/bubbles
Deformation
GB sliding
Dislocations

3. Mechanical Properties
Microstructure
Existing dislocations
Inclusions, particles and point-defects
Inclusions, particles and point-defects
Mechanical Properties
Tensile strength
Fracture
Creep
Fatigue
Grains & GBs
Voids/bubbles
Deformation
GB sliding
Dislocations

5. Limitations Temperature? Anisotropy? Climb? Cross-slip?
Material heterogeneity
Particle coherency/cutting

6. Modelling Dislocations
Atomistic
more precise, but slow
Discrete dislocation dynamics
faster, but only approximates the physics

7. Any thing else? Difficulty in measuring grain sizes etc.
Limits of small scale characterization
Temperature – mechanistic differences
Parameterized models – do they hide the details?
Creep testing and mechanisms different at different stress levels (even at the same T). Difference with accelerated tests.
Long term effects: accu. Damage, phase change, transmutation
Not just modelling or experiments – but both!
Small scale testing and its difficulties.
Weld porosity
Deconvoluting deformation mechanisms, how to combine the factors

8. Modelling Methods Discrete dislocation dynamics
Phase-field (phase sep.)
Continuum mechanical models, FEM elements