Search Results - "Boettinger, W.J"

Thermodynamics of grain boundary premelting in alloys. I. Phase-field modeling by Mishin, Y., Boettinger, W.J., Warren, J.A., McFadden, G.B.

“…The rich nature of the premelting transition of grain boundaries in solid solutions is analyzed. Part I of this paper uses a multi-phase field model, whereas…”
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Whisker and Hillock formation on Sn, Sn–Cu and Sn–Pb electrodeposits by Boettinger, W.J., Johnson, C.E., Bendersky, L.A., Moon, K.-W., Williams, M.E., Stafford, G.R.

“…High purity bright Sn, Sn–Cu and Sn–Pb layers, 3, 7 and 16 μm thick were electrodeposited on phosphor bronze cantilever beams in a rotating disk apparatus…”
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Solidification microstructures: recent developments, future directions by Boettinger, W.J., Coriell, S.R., Greer, A.L., Karma, A., Kurz, W., Rappaz, M., Trivedi, R.

“…The status of solidification science is critically evaluated and future directions of research in this technologically important area are proposed. The most…”
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Computation of the Kirkendall velocity and displacement fields in a one-dimensional binary diffusion couple with a moving interface by Boettinger, W.J, Guyer, J.E, Campbell, C.E, McFadden, G.B

“…The moving interface problem in a one-dimensional binary α/β diffusion couple is studied using sharp and diffuse interface (Cahn–Hilliard) approaches. With…”
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Effect of vacancy creation and annihilation on grain boundary motion by McFadden, G.B., Boettinger, W.J., Mishin, Y.

“…[Display omitted] Interaction of vacancies with grain boundaries (GBs) is involved in many processes occurring in materials, including radiation damage…”
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Prediction of dendritic growth and microsegregation patterns in a binary alloy using the phase-field method by Warren, J.A., Boettinger, W.J.

“…A comprehensive model is developed for solving the heat and solute diffusion equations during solidification that avoids tracking the liquid—solid interface…”
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Development of a diffusion mobility database for Ni-base superalloys by Campbell, C.E, Boettinger, W.J, Kattner, U.R

“…For the fcc phase of the Ni–Al–Co–Cr–Hf–Mo–Re–Ta–Ti–W system, diffusion data in various constituent binary systems were assessed to establish a multicomponent…”
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A diffuse-interface model of reactive wetting with intermetallic formation by Villanueva, W., Boettinger, W.J., McFadden, G.B., Warren, J.A.

“…A diffuse-interface model of reactive wetting with intermetallic formation is developed that incorporates fluid flow, phase change and solute diffusion. The…”
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Atomistic simulation of hillock growth by Frolov, T., Boettinger, W.J., Mishin, Y.

“…This paper explores the mechanisms of hillock and whisker growth in stressed polycrystalline films by molecular dynamics simulations. The initial geometry…”
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Thermodynamic model of hydride formation and dissolution in spherical particles by Mishin, Y., Boettinger, W.J.

“…A model of hydride formation and dissolution has been proposed for a single spherical particle and for a collection of such particles with a given size…”
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Solidification of Ni-Re Peritectic Alloys by Boettinger, W. J., Newbury, D. E., Ritchie, N. W. M., Williams, M. E., Kattner, U. R., Lass, E. A., Moon, K.-W., Katz, M. B., Perepezko, J. H.

“…Differential thermal analysis (DTA) and microstructural and microprobe measurements of DTA and as-cast Ni-Re alloys with compositions between 0.20 and 0.44…”
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Surface morphologies due to grooves at moving grain boundaries having stress-driven fluxes by Sekerka, R.F., Boettinger, W.J., McFadden, G.B.

“…We modify a previous steady-state description developed by Gènin [J. Appl. Phys. 77, 5130–5137 (1995)] for a grain boundary groove moving with a prescribed…”
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Microstructural characterization of Al-7075-T651 chips and work pieces produced by high-speed machining by Campbell, C.E., Bendersky, L.A., Boettinger, W.J., Ivester, R.

“…High-speed orthogonal machining produced a series of Al-7075-T651 chips and work pieces for microstructural charcterization. The orthogonal machining…”
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On dendritic solidification of multicomponent alloys with unequal liquid diffusion coefficients by Rappaz, M., Boettinger, W.J.

“…A model has been developed previously by Rappaz and Thévoz ( Acta metall., 1987, 35, 1478; 1987, 35, 2929) for the solidification of binary alloys having an…”
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Effect of phase change and solute diffusion on spreading on a dissolving substrate by Villanueva, W., Boettinger, W.J., Warren, J.A., Amberg, G.

“…Dissolutive wetting is investigated numerically using a diffuse-interface model that incorporates fluid flow, solute diffusion and phase change. A range of…”
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Examination of Multiphase (Zr,Ti)(V,Cr,Mn,Ni)2 Ni-MH Electrode Alloys: Part I. Dendritic Solidification Structure by Boettinger, W.J., Newbury, D.E., Wang, K., Bendersky, L.A., Chiu, C., Kattner, U.R., Young, K., Chao, B.

“…The solidification microstructures of three nine-element Zr-Ni–based AB 2 type C14/C15 Laves hydrogen storage alloys are determined. The selected compositions…”
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Hillock and whisker growth on Sn and SnCu electrodeposits on a substrate not forming interfacial intermetallic compounds by WILLIAMS, M. E, MOON, K.-W, BOETTINGER, W. J, JOSELL, D, DEAL, A. D

“…Intermetallic compound (IMC) formation at the interface between the tin (Sn) plating and the copper (Cu) substrate of electronic components has been thought to…”
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Modeling reactive wetting by Warren, J.A., Boettinger, W.J., Roosen, A.R.

“…When a liquid alloy spreads on a metal substrate, interdiffusion may result in partial dissolution of the substrate and/or formation of intermetallic phases…”
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Modeling of micro- and macrosegregation and freckle formation in single-crystal nickel-base superalloy directional solidification by SCHNEIDER, M. C, GU, J. P, BECKERMANN, C, BOETTINGER, W. J, KATTNER, U. R

“…The formation of macrosegregation and freckles by multicomponent thermosolutal convection during the directional solidification of single-crystal Ni-base…”
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Lateral deformation of diffusion couples by Boettinger, W.J., McFadden, G.B., Coriell, S.R., Sekerka, R.F., Warren, J.A.

“…A model is used to describe the shape change of a binary diffusion couple when the diffusivities of the two species differ. The classical uniaxial Kirkendall…”
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