| About this Abstract |
| Meeting |
Materials Science & Technology 2011
|
| Symposium
|
Fatigue and Microstructure: A Symposium on Recent Advances
|
| Presentation Title |
Effect of Microstructure Evolution on the High Temperature, High Cycle Fatigue Properties of Two Ni-Based Superalloys |
| Author(s) |
Govindarajan Muralidharan, Rick Battiste, Edward A. Kenik, James Bentley |
| On-Site Speaker (Planned) |
Govindarajan Muralidharan |
| Abstract Scope |
There is significant interest in the use of Ni-based alloys in the next generation automotive engines at temperatures of 870<SUP>o</SUP>C and higher. The focus of this work is to evaluate the effect of microstructure evolution on the high cycle fatigue properties of two Ni-based alloys, IN 751, an alloy used in these applications at lower temperatures, and Waspaloy®. High cycle fatigue lives of the alloys were evaluated using <I>in-situ </I> high temperature fatigue tests. Scanning electron microscopy and transmission electron microscopy were used to characterize the microstructural evolution in these alloys. This talk will present a summary of the observations linking microstructural evolution to the high temperature, high cycle fatigue properties of these alloys. *Research sponsored by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies, and by ORNL’s SHaRE User Facility supported by the Office of Basic Energy Sciences, U. S. Department of Energy |
| Proceedings Inclusion? |
Definite: A CD-only volume |