Zobrazeno 1 - 10
of 126
pro vyhledávání: '"Robert A. Hackenberg"'
Publikováno v:
JOM. 75:195-208
Autor:
Robert A. Hackenberg
Publikováno v:
Man in Adaptation ISBN: 9780429337949
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c966be8258e13fa1a8e8d0310fd4246f
https://doi.org/10.4324/9780429337949-16
https://doi.org/10.4324/9780429337949-16
Autor:
Kristin Tippey, John G. Speer, Paul D. Jablonski, Amy J. Clarke, Robert E. Hackenberg, Ömer N. Doğan, Kip O. Findley, Jonathan Almer, Kester D. Clarke, Aaron P. Stebner
Publikováno v:
Materials Science and Engineering: A. 756:172-183
Two low-carbon 9-Cr ferritic-martensitic steels were designed with the aim of decreasing M23C6 and maintaining or increasing MX phase fraction. A low-carbon (LC) alloy and a low-carbon, zero-niobium (0Nb) alloy were fabricated, their designs based up
Publikováno v:
Metallurgical and Materials Transactions A. 50:2619-2628
In situ time-resolved synchrotron X-ray diffraction experiments were conducted to study the fine-scale phase evolution of U-6Nb. Upon rapid heating from 125 °C to 400 °C, a reverse martensitic transformation sequence, α″ → γo → γs, was obs
Autor:
Pallas A. Papin, Robert T. Forsyth, A.M. Kelly, Tim J. Tucker, Kester D. Clarke, Robert E. Hackenberg, Megan G. Emigh
Publikováno v:
Materials Science Forum. 941:863-868
Overall kinetics of lamellar overaging reactions in U-5.5Nb and U-7.5Nb were analyzed by Avrami-Arrhenius analyses of volume fractions measured from an extensive temperature-time (T-t) matrix of specimens. The cellular initiation site (grain boundari
Autor:
David Rogers, Drew R. Onken, James Ahrens, Jianzhong Zhang, Sven C. Vogel, Robert E. Hackenberg, Christopher M. Biwer
Publikováno v:
Journal of Applied Crystallography. 51:943-951
A tool named Cinema:Debye-Scherrer to visualize the results of a series of Rietveld analyses is presented. The multi-axis visualization of the high-dimensional data sets resulting from powder diffraction analyses allows identification of analysis pro
Autor:
Andrei V. Ruban, Anjana Talapatra, Alexander Landa, Levente Vitos, Thien Duong, Graham King, Pejman Honarmandi, H. M. Volz, Saurabh Bajaj, Anna Llobet, Raymundo Arroyave, Robert E. Hackenberg, Alice I. Smith, Patrice E. A. Turchi
Publikováno v:
Duong, TC; Hackenberg, RE; Landa, A; Honarmandi, P; Talapatra, A; Volz, HM; et al.(2016). Revisiting thermodynamics and kinetic diffusivities of uranium–niobium with Bayesian uncertainty analysis. Calphad: Computer Coupling of Phase Diagrams and Thermochemistry, 55, 219-230. doi: 10.1016/j.calphad.2016.09.006. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/9kt4s9b8
In this work, thermodynamic and kinetic diffusivities of uranium–niobium (U–Nb) are re-assessed by means of the CALPHAD (CALculation of PHAse Diagram) methodology. In order to improve the consistency and reliability of the assessments, first-prin
Autor:
Robert D. Field, W. L. Hults, Dan J. Thoma, Robert E. Hackenberg, Donald W. Brown, Mark A.M. Bourke, Amy J. Clarke
Publikováno v:
Journal of Nuclear Materials. 481:164-175
The mechanical properties of uranium-niobium alloys evolve with aging at relatively low temperatures due to subtle microstructural changes. In-situ neutron diffraction measurements during aging of a monoclinic U-6Nb alloy at temperatures to 573 K wer