Výsledky vyhledávání - "Gary J. Shiflet"

Weibull modulus of hardness, bend strength, and tensile strength of Ni−Ta−Co−X metallic glass ribbons

Autor: Michael Widom, Gary J. Shiflet, A. S. Petersen, Andrew M. Cheung, John J. Lewandowski, Henry J. Neilson, S. Joseph Poon

Publikováno v: Materials Science and Engineering: A. 634:176-182

In this study, the variations in mechanical properties of Ni−Co−Ta-based metallic glasses have been analyzed. Three different chemistries of metallic glass ribbons were analyzed: Ni45Ta35Co20, Ni40Ta35Co20Nb5, and Ni30Ta35Co30Nb5. These alloys po

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f41808cced48056c11e2c9766c5034c0
https://doi.org/10.1016/j.msea.2015.03.006

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Thermodynamic mapping of austenite decomposition’s approach toward equilibrium in Fe–C–Mn at 700 °C

Autor: Aleks Y. M. Ontman, Gary J. Shiflet

Publikováno v: Acta Materialia. 89:98-108

Transformation of Fe–0.85C–11.56Mn (wt.%) at 700 °C begins by formation of grain boundary cementite in conjunction with carbon and manganese partitioning. Grain boundary cementite formation initiates regional partitioning of manganese from auste

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4446e86d14db7359e86286aeb7f457b6
https://doi.org/10.1016/j.actamat.2015.01.001

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The Influence of High Plastic Strain on Precipitation from Solid Solution in Third Generation Al-Li Alloys

Autor: William A. Cassada, Gary J. Shiflet

Publikováno v: Materials Science Forum. :1020-1025

Different levels of compression plane strain were applied to third generation aluminum alloys to simulate rolling-type deformation following solution heat treatment. The aluminum alloys utilized were extruded production samples provided by Alcoa in a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c761dd55d91a794af66bc80e08e26f13
https://doi.org/10.4028/www.scientific.net/msf.794-796.1020

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The Effects of Sc Alloying in Y56Al24Ni10Co10 Glasses on the Local Atomic Structure

Autor: Despina Louca, S. J. Poon, Gary J. Shiflet

Publikováno v: Metallurgical and Materials Transactions A. 44:1990-1993

Using neutron diffraction and the pair density function analysis, the effect of Sc alloying for Y on the local atomic structure of Y56-x Al24Ni10Co10 was investigated. The replacement of Y with Sc significantly changes the local atomic structure of a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::913d98bef7d94f7aba0625813f96968f
https://doi.org/10.1007/s11661-013-1685-z

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Atomic Bond Deficiency Defects in Amorphous Metals

Autor: Aiwu Zhu, S. Joseph Poon, Gary J. Shiflet

Publikováno v: Metallurgical and Materials Transactions A. 43:3501-3509

Atomic bond deficiency (BD) is considered to be characteristic structural defects in amorphous metals. They are the necessary feature of local atomic configurations that facilitate various atomic transports under different driving forces. Compared wi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8df08b767a0ca32b5d17c55f37f3a980
https://doi.org/10.1007/s11661-012-1169-6

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Application of artificial neural networks for feature recognition in image registration

Autor: Aleks Y. M. Ontman, Gary J. Shiflet

Publikováno v: Journal of Microscopy. 246:20-32

Image registration is a process of aligning two or more images taken at different times or using different sensors by transforming the same area into one coordinate system. Imaging conditions, image and area deteriorations from repeated sectioning, a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ea27034c364c5b264009a2d5521872f5
https://doi.org/10.1111/j.1365-2818.2011.03580.x

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Incorporation of defects into the central atoms model of a metallic glass

Autor: Eric A. Lass, Gary J. Shiflet, S. Joseph Poon, Aiwu Zhu

Publikováno v: Acta Materialia. 59:6341-6350

The central atoms model (CAM) of a metallic glass is extended to incorporate thermodynamically stable defects, similar to vacancies in a crystalline solid, within the amorphous structure. A bond deficiency (BD), which is the proposed defect present i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::efda7d66d393f6acc67d321b39a50e77
https://doi.org/10.1016/j.actamat.2011.06.044

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Microstructure segmentation using active contours—Possibilities and limitations

Autor: Aleks Y. M. Ontman, Gary J. Shiflet

Publikováno v: JOM. 63:44-48

Image data often carries redundant or unnecessary information. Consider a hypothetical image containing a phase embedded into a matrix. If the shape of the phase is of interest then the matrix information is redundant. Identification and classificati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1accf4e1242d451cbc60a92a97c862a3
https://doi.org/10.1007/s11837-011-0110-6

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Fluctuations of the Local Atomic Environment with Chemical Alloying in Fe Bulk Metallic Glasses

Autor: S. J. Poon, Peng Tong, X. J. Gu, Gary J. Shiflet, Thomas Proffen, Despina Louca

Publikováno v: Metallurgical and Materials Transactions A. 42:1481-1485

Fluctuations in the microstructure with chemical alloying of Fe multicomponent bulk metallic glasses were characterized via the pair density function analysis of neutron diffraction data. In the two systems investigated, (Fe/Mo)76P12C10B2 and Fe49Cr1

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::33e4a0f7854ce83341ad6801946bc919
https://doi.org/10.1007/s11661-011-0695-y

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