Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Christopher Booth-Morrison"'
Autor:
David N. Seidman, Zugang Mao, Ronald D. Noebe, Christopher Booth-Morrison, Chantal K. Sudbrack
Publikováno v:
Acta Materialia. 166:702-714
The effects of Cr additions on the morphologies οf γ′(L12 ordered) precipitates are studied in three Ni-Al-Cr alloys utilizing atom-probe tomography (APT) and first-principles calculations. We find that Cr and Al share the same sublattice sites i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4fecc848aca8b0a5c3806adc972608ac
https://doi.org/10.1016/j.actamat.2019.01.017
https://doi.org/10.1016/j.actamat.2019.01.017
Autor:
Minh Quan Pham, Thomas Scarinci, Scott Yandt, Christopher Booth-Morrison, Katia Bertoldi, Matthew Christopher Innes, Ahmad Rafsanjani, Farhad Javid, Megan Schaenzer, Ali Shanian, Jia Liu, Miklos Gerendas, David Backman
Publikováno v:
Extreme Mechanics Letters. 16:13-17
Many components of gas turbines, including the combustion liners, ducts, casings and sealing structures, comprise metallic sheets perforated with arrays of circular cooling holes. These parts are highly prone to fatigue failure due to the stresses in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92a78bc172e7b40002d94f3e38799142
https://doi.org/10.1016/j.eml.2017.08.002
https://doi.org/10.1016/j.eml.2017.08.002
Autor:
David C. Dunand, Christopher Booth-Morrison, David N. Seidman, Zugang Mao, Chris Wolverton, M. Diaz
Publikováno v:
Acta Materialia. 60:4740-4752
The effects of adding 0.02 or 0.06 at.% Si to Al–0.06Sc–0.06Zr (at.%) are studied to determine the impact of Si on accelerating Al3(Sc,Zr) precipitation kinetics in dilute Al–Sc-based alloys. Precipitation in the 0.06 at.% Si alloy, measured by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfd3ed80f0bda1fe7e867fe77f4a731d
https://doi.org/10.1016/j.actamat.2012.05.036
https://doi.org/10.1016/j.actamat.2012.05.036
Publikováno v:
Journal of Materials Science. 47:7653-7659
The temperature dependencies of the γ(f.c.c.)-Ni/γ′-Ni3Al(L12) interfacial free energy for the {100}, {110}, and {111} interfaces are calculated using first-principles calculations, including both coherency strain energy and phonon vibrational en
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60be12e357849d48a6d7d99a9ee26792
https://doi.org/10.1007/s10853-012-6399-x
https://doi.org/10.1007/s10853-012-6399-x
Autor:
Chantal K. Sudbrack, Christopher Booth-Morrison, Georges Martin, David N. Seidman, Zugang Mao
Publikováno v:
Acta Materialia. 60:1871-1888
The kinetic pathways involved in the formation of γ′(L1 2 structure)-precipitates during aging of concentrated Ni–Al–Cr alloys at 873 K, for three distinct alloy compositions, are studied experimentally by atom probe tomography, and computatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db93628a3cb8faa0088688794efbcd5a
https://doi.org/10.1016/j.actamat.2011.10.046
https://doi.org/10.1016/j.actamat.2011.10.046
Publikováno v:
Acta Materialia. 59:7029-7042
The effect of substituting 0.01 or 0.02 at.% Er for Sc in an Al–0.06 Zr–0.06 Sc at.% alloy was studied to develop cost-effective high-temperature aluminum alloys for aerospace and automotive applications. Spheroidal, coherent, L12-ordered Al3(Sc,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::733491dab6ca5d44be37c90c76f17f2e
https://doi.org/10.1016/j.actamat.2011.07.057
https://doi.org/10.1016/j.actamat.2011.07.057
Publikováno v:
Philosophical Magazine. 90:219-235
The phase separation of a Ni–6.5 Al–9.5 Cr at. % alloy aged at 873 K was studied by atom-probe tomography and compared to the predictions of classical precipitation models. Phase separation in this alloy occurs in four distinct regimes: (i) quasi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::944f3ef86238029d03e4b3f7359838d4
https://doi.org/10.1080/14786430902806660
https://doi.org/10.1080/14786430902806660
Publikováno v:
Acta Materialia. 57:909-920
The effects of a 2.0 at.% addition of Ta to a model Ni-10.0Al-8.5Cr (at.%) superalloy aged at 1073 K are assessed using scanning electron microscopy and atom-probe tomography. The gamma'(Ll2)-precipitate morphology that develops as a result of gamma-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1eb02a81d2bebe2dfc0da307e652d759
https://doi.org/10.1016/j.actamat.2008.10.029
https://doi.org/10.1016/j.actamat.2008.10.029
Publikováno v:
Microscopy and Microanalysis. 14:571-580
The effects of varying the pulse energy of a picosecond laser used in the pulsed-laser atom-probe (PLAP) tomography of an as-quenched Ni-6.5 Al-9.5 Cr at.% alloy are assessed based on the quality of the mass spectra and the compositional accuracy of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b8f89767292e4171170e70bb273cc5f
https://doi.org/10.1017/s1431927608080963
https://doi.org/10.1017/s1431927608080963
Autor:
Ronald D. Noebe, Christopher Booth-Morrison, David N. Seidman, Zugang Mao, Chantal K. Sudbrack, Jessica Weninger
Publikováno v:
Acta Materialia. 56:3422-3438
The kinetic pathways resulting from the formation of coherent gamma'-precipitates from the gamma-matrix are studied for two Ni-Al-Cr alloys with similar gamma'-precipitate volume fractions at 873 K. The details of the phase decompositions of Ni-7.5Al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2ce51e902b79eae71b8a8e932ed2a7e
https://doi.org/10.1016/j.actamat.2008.03.016
https://doi.org/10.1016/j.actamat.2008.03.016