Search Results - "POLLOCK, T. M"

High-Resolution Deformation Mapping Across Large Fields of View Using Scanning Electron Microscopy and Digital Image Correlation by Chen, Z., Lenthe, W., Stinville, J. C., Echlin, M., Pollock, T. M., Daly, S.

“…This paper details the creation of experimental and computational frameworks to capture high-resolution, microscale deformation mechanisms and their relation…”
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Damage mechanism identification in composites via machine learning and acoustic emission by Muir, C., Swaminathan, B., Almansour, A. S., Sevener, K., Smith, C., Presby, M., Kiser, J. D., Pollock, T. M., Daly, S.

“…Damage mechanism identification has scientific and practical ramifications for the structural health monitoring, design, and application of composite systems…”
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Solidification paths and eutectic intermetallic phases in Mg–Al–Ca ternary alloys by Suzuki, A., Saddock, N.D., Jones, J.W., Pollock, T.M.

“…The solidification of Mg–Al–Ca ternary alloys in the α-Mg solidification region was investigated by microstructural and thermal analysis, and the liquidus…”
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Strengthening Mechanisms in Polycrystalline Multimodal Nickel-Base Superalloys by Kozar, R.W., Suzuki, A., Milligan, W.W., Schirra, J.J., Savage, M.F., Pollock, T.M.

“…Polycrystalline γ - γ ′ superalloys with varying grain sizes and unimodal, bimodal, or trimodal distributions of precipitates have been studied. To assess the…”
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Thermal barrier coating adherence to Hf-modified B2 NiAl bond coatings by JACKSON, R. W, LIPKIN, D. M, POLLOCK, T. M

“…The durability of thermal barrier coatings (TBCs) deposited on Hf-modified B2 NiAl bond coatings has been investigated under thermal cycling conditions. The…”
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Cyclic oxidation of high temperature coatings on new γ′-strengthened cobalt-based alloys by Vermaak, N., Mottura, A., Pollock, T.M.

“…•Evaluated coatings for new Co-based γ′-strengthened alloys by cyclic oxidation.•MCrAlY coatings exhibit superior adherence.•Coating/substrate interdiffusion…”
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Structure–Property–Functionality of Bimetal Interfaces by Beyerlein, I. J., Mara, N. A., Wang, J., Carpenter, J. S., Zheng, S. J., Han, W. Z., Zhang, R. F., Kang, K., Nizolek, T., Pollock, T. M.

“…Interfaces, such as grain boundaries, phase boundaries, and surfaces, are important in materials of any microstructural size scale, whether the microstructure…”
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Development of Dendritic Structure in the Liquid-Metal-Cooled, Directional-Solidification Process by Brundidge, C. L., Miller, J. D., Pollock, T. M.

“…A single-crystal nickel-base superalloy was directionally solidified over a range of withdrawal rates to assess the benefits of using liquid-metal cooling…”
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Experimental Investigation and Thermodynamic Modeling of the Co-Rich Region in the Co-Al-Ni-W Quaternary System by Zhu, J., Titus, M. S., Pollock, T. M.

“… The stabilities of the γ-(Co), γ′-Co 3 (Al,W), μ-Co 7 W 6 , β-CoAl and α-(W) phases in the Co-Al-W and Ni-Al-W ternary systems were investigated at 900,…”
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Multi-modal Dataset of a Polycrystalline Metallic Material: 3D Microstructure and Deformation Fields by Stinville, J. C., Hestroffer, J. M., Charpagne, M. A., Polonsky, A. T., Echlin, M. P., Torbet, C. J., Valle, V., Nygren, K. E., Miller, M. P., Klaas, O., Loghin, A., Beyerlein, I. J., Pollock, T. M.

“…The development of high-fidelity mechanical property prediction models for the design of polycrystalline materials relies on large volumes of microstructural…”
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A model of tuberculosis clustering in low incidence countries reveals more transmission in the United Kingdom than the Netherlands between 2010 and 2015 by Brooks-Pollock, Ellen, Danon, Leon, Korthals Altes, Hester, Davidson, Jennifer A, Pollock, Andrew M T, van Soolingen, Dick, Campbell, Colin, Lalor, Maeve K

“…Tuberculosis (TB) remains a public health threat in low TB incidence countries, through a combination of reactivated disease and onward transmission. Using…”
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Simulation of diffusion-limited lateral growth of dendrites during solidification via liquid metal cooling by Miller, J.D., Yuan, L., Lee, P.D., Pollock, T.M.

“…Directional solidification via the liquid metal cooling process results in refined microstructure and reduced defects, thus providing improved mechanical…”
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Development of γ phase stacking faults during high temperature creep of Ru-containing single crystal superalloys by Ma, S., Carroll, L., Pollock, T.M.

“…An unusual deformation mode involving the formation of intrinsic stacking faults in the γ matrix of experimental Ru-containing γ– γ′ superalloys with high Co…”
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Structure Refinement by a Liquid Metal Cooling Solidification Process for Single-Crystal Nickel-Base Superalloys by Brundidge, C. L., van Drasek, D., Wang, B., Pollock, T. M.

“…Single crystals of a nickel-base superalloy were directionally solidified (DS) over a range of cooling rates to evaluate the benefits of a new high thermal…”
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Structure and transition of eutectic (Mg,Al) 2Ca Laves phase in a die-cast Mg–Al–Ca base alloy by Suzuki, A., Saddock, N.D., Jones, J.W., Pollock, T.M.

“…The crystal structure of a eutectic (Mg,Al) 2Ca Laves phase in as-cast AXJ530 (Mg–5Al–3Ca–0.15Sr) was identified as C36 by electron diffraction analysis. The…”
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Phase instabilities and carbon additions in single-crystal nickel-base superalloys by Tin, S., Pollock, T.M.

“…The phase stability of a number of experimental single-crystal nickel-base superalloys with elevated levels of rhenium, tungsten and tantalum (Ta) has been…”
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A machine learning framework for damage mechanism identification from acoustic emissions in unidirectional SiC/SiC composites by Muir, C., Swaminathan, B., Fields, K., Almansour, A. S., Sevener, K., Smith, C., Presby, M., Kiser, J. D., Pollock, T. M., Daly, S.

“…In this work, we demonstrate that damage mechanism identification from acoustic emission (AE) signals generated in minicomposites with elastically similar…”
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Interfacial Dislocation Networks and Creep in Directional Coarsened Ru-Containing Nickel-Base Single-Crystal Superalloys by Carroll, L.J., Feng, Q., Pollock, T.M.

“…Mechanisms of creep deformation in nickel-base superalloy single crystals in the directional coarsening regime have been studied in alloys with large…”
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Predicting freckle formation in single crystal Ni-base superalloys by TIN, S, POLLOCK, T. M

“…Freckle formation has been investigated in thirty-two distinct experimental single crystal Ni-base superalloys with large compositional variations. In addition…”
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Survey of X-Rays from Massive Stars Observed at High Spectral Resolution with Chandra by Pradhan, Pragati, Huenemoerder, David P., Ignace, Richard, Nichols, Joy S., Pollock, A. M. T.

“…Abstract Identifying trends between observational data and the range of physical parameters of massive stars is a critical step to the still-elusive full…”
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