Metallurgical Factors Influencing Direct Laser Deposition of Metallic Powers for Unitized Structures

摘要

The aim of this project is to investigate the possibility of making use of direct laser deposition techniques for the production of unitized structures. Specifically, the research is directed at determining the metallurgical factors that influence the process for this application. By so doing, it is intended to develop technologies which permit exploitation of the advantages of this processing technique. This research that has been performed during the scope of this program has been considerable. Specifically, the research has been focused on process optimization and baseline property determination, graded compositions and the development of an associated combinatorial approach, the use of elemental blends, and the use of forging preforms. These represent the four primary research areas in this program, as described in the narrative below.