Study of nanoprecipitates in a nickel-based superalloy using small-angle neutron scattering and transmission electron microscopy

E-Wen Huang*, Peter K. Liaw, Lionel Porcar, Yun Liu, Yee Lang Liu, Ji Jung Kai, Wei Ren Chen

*Corresponding author for this work

Research output: Contribution to journalArticle

23 Scopus citations

Abstract

Small-angle neutron scattering (SANS) experiments were performed on a Ni-based nanoprecipitate-strengthened superalloy. A theoretical model for SANS absolute intensity distribution I (Q) was presented to extract the structural properties. During the deformation process, a change in the morphology of precipitates was discovered. However, the average interprecipitate distance and the average volume of precipitates were found to remain invariant. This microstructural information resolved by SANS is in good agreement with the results obtained from the quantitative transmission-electron-microscopy image analysis.

Original languageEnglish
Article number161904
JournalApplied Physics Letters
Volume93
Issue number16
DOIs
StatePublished - 3 Nov 2008

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