About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Characterization of Minerals, Metals and Materials
|
Presentation Title |
Quantitative Microstructural Characterization of Precipitates and their Distributions in Nickel Alloys |
Author(s) |
Chris Bilsland, Thomas Benjamin Britton |
On-Site Speaker (Planned) |
Thomas Benjamin Britton |
Abstract Scope |
We present a new correlative framework to develop quantitative microstructural characterisation of precipitates in Ni-based alloys. For component manufacturing, precipitate distribution is controlled to optimise performance, such as optimising strength and stress corrosion cracking (SCC) resistance. In this work, we use simultaneous energy dispersive X-ray spectroscopy (EDS/EDX) and electron backscatter diffraction (EBSD), together with statistical testing, to explore the similarity and differences of precipitate distributions in Inconel 625. Our new approach draws together new image processing algorithms for particle classification (using EDS spectra), automated correlation with grain boundary character (from EBSD), statistical testing and verification of the area studied, as well as visualisations of the co-distribution of elements against different boundary types. These methods have been useful to understand measured differences in SCC performance for wrought and hot isostatic pressed (HIP'ed) components. |
Proceedings Inclusion? |
Planned: |
Keywords |
Copper / Nickel / Cobalt, Characterization, |