P
Peter B. Wells
Researcher at University of California, Santa Barbara
Publications - 23
Citations - 795
Peter B. Wells is an academic researcher from University of California, Santa Barbara. The author has contributed to research in topics: Embrittlement & Irradiation. The author has an hindex of 13, co-authored 22 publications receiving 574 citations.
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Journal ArticleDOI
Evolution of manganese–nickel–silicon-dominated phases in highly irradiated reactor pressure vessel steels
Peter B. Wells,Takuya Yamamoto,Brandon D. Miller,Tim Milot,James I. Cole,Yuan Wu,G. Robert Odette +6 more
TL;DR: In this article, Atom probe tomography was used to study the formation of Mn-Ni-Si-dominated precipitates in irradiated Cu-free and Cu-bearing reactor pressure vessel steels.
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Multi-technique characterization of the precipitates in thermally aged and neutron irradiated Fe-Cu and Fe-Cu-Mn model alloys: Atom probe tomography reconstruction implications
TL;DR: In this paper, the temperature dependence of magnetic scattering (T-SANS) was used to prove that the copper-rich precipitates are not magnetic at ambient temperature and nuclear scattering mass balance constraints showed that CRPs do not contain a significant amount of Fe.
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Thermodynamic and kinetic modeling of Mn-Ni-Si precipitates in low-Cu reactor pressure vessel steels
Huibin Ke,Peter B. Wells,Philip D. Edmondson,N. Almirall,Leland Barnard,G. Robert Odette,Dane Morgan +6 more
TL;DR: In this article, a semi-empirical cluster dynamics model was developed to study the evolution of Mn-Ni-Si precipitates in low-Cu RPV steels, based on CALPHAD thermodynamics and radiation enhanced diffusion kinetics.
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Structural characterization of nanoscale intermetallic precipitates in highly neutron irradiated reactor pressure vessel steels
David J. Sprouster,John Sinsheimer,Eric Dooryhee,Sanjit Ghose,Peter B. Wells,Tiberiu Stan,N. Almirall,G.R. Odette,Lynne Ecker +8 more
TL;DR: In this article, synchrotron-based X-ray diffraction and small angle x-ray scattering measurements are used to characterize highly embrittling nm-scale Mn-Ni-Si precipitates that develop in the irradiated steels at high fluence.
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Thermodynamics and kinetics of core-shell versus appendage co-precipitation morphologies: An example in the Fe-Cu-Mn-Ni-Si system
TL;DR: In this article, the interplay between interfacial and ordering energies, plus active diffusion paths, strongly affect the selection of core-shell versus appendage morphologies in co-precipitating alloy systems.