|About this Abstract
|MS&T23: Materials Science & Technology
|Advanced Characterization of Materials for Nuclear, Radiation, and Extreme Environments IV
|Accelerated Assessment of Microstructure-Mechanical Property Relationships in Ni Based Superalloys
|Kevin Schmalbach, Toshio Osada, Eric Hintsala, Douglas Stauffer, Takahito Ohmura
|On-Site Speaker (Planned)
Understanding the mechanical properties of individual phases of multi-phase materials can often be hindered by the process of aligning separately measured microstructure and mechanical property maps, especially for high temperature applications. Here we discuss the development and utilization of a novel system designed to streamline the identification of microstructure-mechanical property relationships. The system is a Hysitron PI89 Picoindenter system using a rotation and tilt stage to navigate between EBSD for microstructure identification and nanoindentation positions to assess site-specific material properties. This can be coupled with a heating stage capable of attaining 1000 °C to directly assess the relationships between temperature, phase/orientation, and mechanical properties. Finally, we will apply the new system to understand phase transformations and temperature dependence of mechanical properties at elevated temperatures in nickel based superalloys.