Design of a Thermally Stable Nano-crystalline Alloy with Superior Tensile Creep and Fatigue Behavior by Chaitanya Kale A Dissertation Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy Approved October 2019 by the Graduate Supervisory Committee: Kiran Solanki, Chair Kris Darling Kumar Ankit ARIZONA STATE UNIVERSITY December 2019