Collaborative Research and Development Contract. Delivery Order 0047: Mesocscale Modeling of the Thermal Mechanical Processing (TMP) of Superalloys

摘要

This research in support of the Air Force Research Laboratory Materials and Manufacturing Directorate was conducted at Wright-Patterson AFB, Ohio from 1 March 2006 through 1 February 2008. The work done under this contract belongs to two main types of activities, which decides of the overall outline of this report. First, activities regarding the mesoscale model of microstructure evolution of Waspaloy will be presented. They consist in few experiments for the validation of hypothesis used to design the model. And they regard its finalization and industrial application. The knowledge gained during this work on Waspaloy provided the basis for a more fundamental type of work which aims at preparing the extension of the modeling tools used for Waspaloy to other alloys as well as to encompass other types of microstructure-evolution models. It is the topic of the second part of this report. It will introduce the prototypical software modules that were designed to demonstrate the feasibility of a next-generation modeling software for microstructure evolution and assess the difficulty of such development.