Zobrazeno 1 - 10 of 91 pro vyhledávání: '"M. Hazzledine"'
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Discrete dislocation simulations of precipitation hardening in inverse superalloys
Autor: S. I. Rao, Dennis M. Dimiduk, T. A. Parthasarathy, P. M. Hazzledine
Publikováno v: Philosophical Magazine Letters. 86:215-225
The low-temperature yield stress of a γ′ (Ni3Al) matrix–γ (Ni) precipitate ‘inverse’ superalloy, containing 40% Ni precipitates (γ), is calculated by discrete-dislocation simulations. Two different precipitate sizes and two anti-phase boun
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e05a96332d2946040dd44853dd1913f9
https://doi.org/10.1080/09500830600618215
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3
Discrete dislocation simulations of precipitation hardening in superalloys
Autor: Dennis M. Dimiduk, Triplicane A. Parthasarathy, Satish I. Rao, P. M. Hazzledine
Publikováno v: Philosophical Magazine. 84:3195-3215
The low-temperature yield stress of a nickel-based superalloy, containing up to 40% Ni3A1 precipitates (γ′), is calculated by discrete dislocation simulations. A pair of screw or 60°(a/2) ⟨110⟩ dislocation glides under external stress across
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5eaac88ea87ca428e3ae2b1f1e291b14
https://doi.org/10.1080/14786430412331284432
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4
The mean-field stress due to uniformly distributed shear dislocation loops in a finite sample
Autor: Y Q Sun, X M Gu, P M Hazzledine
Publikováno v: Modelling and Simulation in Materials Science and Engineering. 10:611-616
For a sample containing uniformly distributed shear dislocation loops, there is an interaction between the loops. In this paper the mean value of the interaction stress in a spherical sample is determined. For the constrained sample, the mean stress
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d481d3d7334d1097a550ce85af5246f7
https://doi.org/10.1088/0965-0393/10/6/302
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5
Design-tool representations of strain compatibility and stress-strain relationships for lamellar gamma titanium aluminides
Autor: P. M. Hazzledine, Tiplicane A. Parthasarathy, Dennis M. Dimiduk
Publikováno v: Intermetallics. 9:875-882
Engineering use of gamma titanium aluminides requires further development of design models of the material. Presently, modeling tools are limited by computational capability, uncertainty in experimental data, and physical accuracy. Lamellar Ti–Al a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c121b0465264cda44ab30544fa77a027
https://doi.org/10.1016/s0966-9795(01)00085-1
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6
Zener pins and needles
Autor: O. Herrera, C. H. Wörner, A. Olguín, M. Ortiz, P. M. Hazzledine, B. K. Kad
Publikováno v: PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES
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The behaviour of two-dimensional grain structures anchored by circular or elongated pins (needles) is examined in two ways: experimentally, using soap films trapped between two glass plates, and computationally, using a Potts model. In the simulation
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e918d24ea3d21a74cce5075ed3bc9ec4
https://doi.org/10.1080/13642810108216539
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7
Atomistic simulations of dislocation–interface interactions in the Cu-Ni multilayer system
Autor: P. M. Hazzledine, Satish I. Rao
Publikováno v: Philosophical Magazine A. 80:2011-2040
Experimental results show that a nanolayered composite structure made of two kinds of metals strengthens dramatically as the layer thickness is reduced. In epitaxial systems, this strengthening has been attributed to the modulus, lattice parameter, g
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eeec24e81ff4d04b05843a43415265e7
https://doi.org/10.1080/01418610008212148
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8
Dislocation-Based Deformation Mechanisms in Metallic Nanolaminates
Autor: Peter M. Anderson, Timothy J. Foecke, P. M. Hazzledine
Publikováno v: MRS Bulletin. 24:27-33
The appeal of nanolayered materials from a mechanical viewpoint is that, in principle, plastic deformation can be confined to small volumes of material by Controlling both the frequency and magnitude of obstacles to dislocation motion. As we shall se
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cb22140a1e2e808fc33f7e29613d5571
https://doi.org/10.1557/s0883769400051514
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10
The role of grain size and selected microstructural parameters in strengthening fully lamellar TiAl alloys
Autor: Dennis M. Dimiduk, Triplicane A. Parthasarathy, P. M. Hazzledine, M. G. Mendiratta, Sriram Seshagiri
Publikováno v: Metallurgical and Materials Transactions A. 29:37-47
More than 5 years ago, wrought processing was first used to produce fully lamellar (FL) microstructures in TiAl alloys having grain sizes less than ≈400 µm. These alloys exhibit an improvement in overall balance of properties, especially at high t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::10863efaa6389c7c97aee4a9820a63e3
https://doi.org/10.1007/s11661-998-0157-3
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