Search Results - "Ott, R.T"

Evaluation of an Al-Ce alloy for laser additive manufacturing by Plotkowski, A., Rios, O., Sridharan, N., Sims, Z., Unocic, K., Ott, R.T., Dehoff, R.R., Babu, S.S.

“…This study focuses on the development of a design methodology for alloys in AM, using a newly developed Al-Ce alloy as an initial case study. To evaluate the…”
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Development of suitable interatomic potentials for simulation of liquid and amorphous Cu-Zr alloys by Mendelev, M.I., Kramer, M.J., Ott, R.T., Sordelet, D.J., Yagodin, D., Popel, P.

“…We present a new semi-empirical potential suitable for molecular dynamics simulations of liquid and amorphous Cu-Zr alloys. To provide input data for…”
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Strength mechanisms and tunability in Al-Ce-Mg ternary alloys enabled by additive manufacturing by Nam, S., Simsek, E., Argibay, N., Rios, O., Henderson, H.B., Weiss, D., Moore, E.E., Perron, A.P., McCall, S.K., Ott, R.T.

“…[Display omitted] •DED with multiple feedstock powders enables large composition ranges of potential AM alloys to be rapidly synthesized.•Microhardness…”
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Micromechanics of deformation of metallic-glass–matrix composites from in situ synchrotron strain measurements and finite element modeling by Ott, R.T., Sansoz, F., Molinari, J.F., Almer, J., Ramesh, K.T., Hufnagel, T.C.

“…We have used in situ X-ray scattering and finite element modeling (FEM) to examine the micromechanics of deformation of in situ formed metallic-glass–matrix…”
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Controlling shear band behavior in metallic glasses through microstructural design by Hufnagel, T.C, Fan, Cang, Ott, R.T, Li, J, Brennan, S

“…Plastic deformation in metallic glasses is governed by the initiation and propagation of shear bands. The successful use of bulk metallic glasses in structural…”
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Isothermal nature of martensite formation in Pt-modified β-NiAl alloys by Sordelet, D.J., Besser, M.F., Ott, R.T., Zimmerman, B.J., Porter, W.D., Gleeson, B.

“…Numerous experimental and modeling efforts to describe the cyclic behavior of β-NiAl-based coatings have recognized and considered the propensity of Ni-rich β…”
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High-energy X-ray measurements of structural anisotropy and excess free volume in a homogenously deformed Zr-based metallic glass by Ott, R.T., Kramer, M.J., Besser, M.F., Sordelet, D.J.

“…We have used high-energy X-ray scattering to measure the structural anisotropy and excess free volume in a homogeneously deformed Zr-based metallic glass…”
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Thermodynamic database for the Co-Pr system by Zhou, S.H., Kramer, M.J., Meng, F.Q., McCallum, R.W., Ott, R.T.

“…In this article, we describe data on (1) compositions for both as-cast and heat treated specimens were summarized in Table 1; (2) the determined enthalpy of…”
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Anisotropic atomic structure in a homogeneously deformed metallic glass by Kramer, M.J., Ott, R.T., Sordelet, D.J.

“…The anisotropic atomic structure in a Zr41.2Ti13.8Cu12.5Ni10Be22.5 metallic glass strained during uniaxial tensile creep at 598 K was studied at room…”
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Structure of ZrxPt100−x (73 ≤ x ≤ 77) Metallic Glasses by Sordelet, D.J., Ott, R.T., Li, M.Z., Wang, S.Y., Wang, C.Z., Besser, M.F., Liu, A.C.Y., Kramer, M.J.

“…The structure of hyper-eutectic Zr x Pt 100− x (73 ≤  x  ≤ 77) metallic glasses produced by melt spinning was examined with high-energy synchrotron X-ray…”
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Structure and properties of Zr–Ta–Cu–Ni–Al bulk metallic glasses and metallic glass matrix composites by Ott, R.T., Fan, C., Li, J., Hufnagel, T.C.

“…We have developed a series of alloys which, upon cooling from the melt, form two-phase microstructures consisting of crystalline Ta-rich solid solution…”
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Synthesis of Nd-lean (Nd,Ce,La)-Fe-B magnets via hot deformation and rolling by Anand, K.S., Simsek, E., Huang, H., Pan, C., Palasyuk, O., Chaudhary, R.P., Tang, W., Kramer, M.J., Cui, J., Ott, R.T.

“…In this work, we have used bulk combinatorial synthesis to rapidly identify a (Nd,Ce,La)-Fe-B composition that is both Nd-lean (<50 % of total rare earth…”
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Reduction of shear localization through structural rejuvenation in Zr–Cu–Al bulk metallic glass by Meng, F., Tsuchiya, K., Kramer, M.J., Ott, R.T.

“…The effect of high-pressure torsion (HPT) on the structure and mechanical behavior of Zr50Cu40Al10 bulk metallic glass was investigated using calorimetry,…”
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Optimization of strength and ductility in nanotwinned ultra-fine grained Ag: Twin density and grain orientations by Ott, R.T., Geng, J., Besser, M.F., Kramer, M.J., Wang, Y.M., Park, E.S., LeSar, R., King, A.H.

“…Nanotwinned ultrafine grained Ag thick films with different twin densities and orientations have been synthesized by magnetron sputtering with a wide-range of…”
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Bulk Combinatorial Synthesis and High Throughput Characterization for Rapid Assessment of Magnetic Materials: Application of Laser Engineered Net Shaping (LENS™) by Geng, J., Nlebedim, I. C., Besser, M. F., Simsek, E., Ott, R. T.

“…A bulk combinatorial approach for synthesizing alloy libraries using laser engineered net shaping (LENS™; i.e., 3D printing) was utilized to rapidly assess…”
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[O69] Energetic investigation of metastable Al60Sm11-ω, Al5Sm-π, Al4Sm-γ,Al11Sm3-α and Al4Sm-β phase formation by Zhou, S.H., Kramer, M.J., Ott, R.T., Napolitano, R.E.

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Towards additive manufacturing of magnetocaloric working materials by Lejeune, B.T., Barua, R., Simsek, E., McCallum, R.W., Ott, R.T., Kramer, M.J., Lewis, L.H.

“…The feasibility of three-dimensional printing via the Directed Energy Deposition (DED) technique is demonstrated for the ferromagnetic AlFe2B2 (aka 1-2-2)…”
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Discovery of a meta-stable Al–Sm phase with unknown stoichiometry using a genetic algorithm by Zhang, Feng, McBrearty, Ian, Ott, R.T., Park, E., Mendelev, Mikhail I., Kramer, M.J., Wang, Cai-Zhuang, Ho, Kai-Ming

“…Unknown crystalline phases observed during the devitrification process of glassy metal alloys significantly limit our ability to understand and control phase…”
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The role of amorphous precursor in phase selection hierarchy in marginal metallic glasses by Yildirim, C., Kutsal, M., Ott, R.T., Besser, M.F., Kramer, M.J., Kalay, Y.E.

“…The solid state amorphous structure and devitrification products of Al90Tb10 alloys produced by Cu block melt-spinning and magnetron sputtering were…”
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Competitive devitrification and metastable phase selection in amorphous Al–Sm by Meng, F.Q., Zhou, S.H., Ott, R.T., Kramer, M.J., Napolitano, R.E.

“…Competitive phase selection during devitrification of Al–Sm glassy alloys is investigated for compositions ranging from 9.0 to 14.1 at% Sm. The crystallization…”
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