|About this Abstract
||MS&T23: Materials Science & Technology
||Additive Manufacturing: Design, Materials, Manufacturing, Challenges and Applications
||Ultra-High Temperature Performance of Additively Manufactured Refractory Alloys
||Kelly Orsborn, Eric T Brizes, Omar R Mireles, Antonio J Ramirez
|On-Site Speaker (Planned)
Refractory alloys, while highly desirable for aerospace applications for their high temperature strength, were initially designed to be manufactured via traditional (subtractive) methods. To increase adoption of Additive Manufacturing in this space, a new methodology must be developed to perform mechanical testing at high temperatures and limit oxidation. To perform the tests at high temperatures in an inert atmosphere (vacuum), a thermomechanical simulator was used, but required modifications to the hardware and testing environment. An auxiliary system was used to reduce oxidation in conjunction with oxide capturing mechanisms within the vacuum chamber. The chamber and the grips that hold the samples required modification to withstand these higher temperatures. New grips and samples were designed using CAD and FEA software. This study serves to discuss the development of a rapid high temperature testing procedure for refractory alloys and analyze the elevated-temperature mechanical performance and oxidation.