|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Materials for High Temperature Applications: Next Generation Superalloys and Beyond
||F-56: An In-situ Synchrotron X-ray Scattering Study of Microstructural Evolution in a Model Ni-based Alloy
||Govindarajan Muralidharan, Dean T Pierce, Ross N Andrews, Jan Ilavsky, Saul H Lapidus
|On-Site Speaker (Planned)
There is increasing interest in the use of high performance Ni-based alloys for exhaust valve applications in the next generation, higher efficiency automotive engines at 870oC and higher temperatures. Materials used in this application should not only have sufficient strength and microstructural stability at these temperatures but should be lower in cost than traditional Ni-based superalloys. This talk will present the results from an in-situ Ultra-small-angle(USAXS)/SAXS/WAXS study of γ' evolution in a model Ni-based alloy with lower Ni levels. Implications for the development of alloys for service in exhaust valve applications will be presented. Research sponsored by the U.S.DOE, Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies, under contract DE-AC05-00OR22725 with UT-Battelle, LLC and used resources of the Advanced Photon Source, a U.S.DOE Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357.