1. 1 AFOSR Grants: – FA9550-05-1-0135 (OSU) – FA9550-05-1-0100 (UofM) – FA9550-05-1-0102 (JHU) Funding: – AFOSR to OSU$ 1,119K – AFOSR to UofM$ 285K – AFOSR to JHU $ 195K – Total$ 1,599K Team Gov’t AFOSR Manager: Brett Conner Gov’t Technical Manager: Dennis Dimiduk OSU Program Manager: Michael Mills UofM Program Manager: Tresa Pollock JHU Program Manager: Kevin Hemker 9 Faculty & 4 AFRL Mentors (+ Students ) Duration: Feb 05 - Feb 08 MEANS2 Microstructure- and Micromechanism-Sensitive Property Models for Advanced Turbine Disk and Blade Systems Objective: Develop physics-based understanding and modeling capability for deformation/damage mechanisms in Ni-base disk and blade alloys Approach: Integrated experiments and modeling for microstructure and micromechanisms developed in collaboration between AFRL, industry partners and universities Payoff: Improved fidelity of AIM property and microstructure evolution models

2. 2 ProcessingMicrostructure Microstructure Modeling + Calibrating Experiments Micromechanical Modeling + Calibrating Experiments Slow Cool Fast Cool Properties Transitions: Providing fundamental micro-mechanical insights for the AIM augmentations at Pratt and Whitney and GEAE, and for the DARPA-Prognosis and NASA-Propulsion 21 efforts. Goal: Augment/replace costly and time-intensive empirical databases with microstructure-sensitive, mechanism-based materials models. MEANS 2: Approach for Developing Microstructure- and Micromechanism-Sensitive Property Models

3. 3 Slipped  -matrix Unslipped  -matrix Unslipped  ' Pseudo- twin/ SESF CSF Deformation Mechanisms Properties Microstructure (111) 1 nm  Mechanisms Characterization/ Validation Computational Modeling EF-TEM/SEM/3DAP Phase Field 100 nm 20 nm Crystal Plasticity MEANS 2: Approach for Developing Microstructure- and Micromechanism-Sensitive Property Models