TEM, HRTEM, electron holography and electron tomography studies of gamma' and gamma'' nanoparticles in Inconel 718 superalloy. Dubiel, B, Kruk, A, Stepniowska, E, Cempura, G, Geiger, D, Formanek, P, Hernandez, J, Midgley, P, & Czyrska-Filemonowicz, A Journal of microscopy, 236(2):149–57, nov, 2009.
TEM, HRTEM, electron holography and electron tomography studies of gamma' and gamma'' nanoparticles in Inconel 718 superalloy. [link]Paper  doi  abstract   bibtex   
The aim of the study was the identification of gamma' and gamma'' strengthening precipitates in a commercial nickel-base superalloy Inconel 718 (Ni-19Fe-18Cr-5Nb-3Mo-1Ti-0.5Al-0.04C, wt %) using TEM dark-field, HRTEM, electron holography and electron tomography imaging. To identify gamma' and gamma'' nanoparticles unambiguously, a systematic analysis of experimental and theoretical diffraction patterns were performed. Using HRTEM method it was possible to analyse small areas of precipitates appearance. Electron holography and electron tomography techniques show new possibilities of visualization of gamma' and gamma'' nanoparticles. The analysis by means of different complementary TEM methods showed that gamma'' particles exhibit a shape of thin plates, while gamma' phase precipitates are almost spherical.
@article{Dubiel2009,
abstract = {The aim of the study was the identification of gamma' and gamma'' strengthening precipitates in a commercial nickel-base superalloy Inconel 718 (Ni-19Fe-18Cr-5Nb-3Mo-1Ti-0.5Al-0.04C, wt {\%}) using TEM dark-field, HRTEM, electron holography and electron tomography imaging. To identify gamma' and gamma'' nanoparticles unambiguously, a systematic analysis of experimental and theoretical diffraction patterns were performed. Using HRTEM method it was possible to analyse small areas of precipitates appearance. Electron holography and electron tomography techniques show new possibilities of visualization of gamma' and gamma'' nanoparticles. The analysis by means of different complementary TEM methods showed that gamma'' particles exhibit a shape of thin plates, while gamma' phase precipitates are almost spherical.},
author = {Dubiel, B and Kruk, A and Stepniowska, E and Cempura, G and Geiger, D and Formanek, P and Hernandez, J and Midgley, P and Czyrska-Filemonowicz, A},
doi = {10.1111/j.1365-2818.2009.03283.x},
issn = {1365-2818},
journal = {Journal of microscopy},
keywords = {Electron holography,Electron tomography,HRTEM,Inconel 718,$\gamma$′ phase,$\gamma$″ phase},
month = {nov},
number = {2},
pages = {149--57},
pmid = {19903242},
title = {{TEM, HRTEM, electron holography and electron tomography studies of gamma' and gamma'' nanoparticles in Inconel 718 superalloy.}},
url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-70350514120{\&}partnerID=tZOtx3y1},
volume = {236},
year = {2009}
}

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