Výsledky vyhledávání - "J. Quinta Da Fonseca"

A statistical study of the relationship between plastic strain and lattice misorientation on the surface of a deformed Ni-base superalloy

Autor: Michael Preuss, Allan Harte, Michael Atkinson, J. Quinta da Fonseca

Publikováno v: Harte, A, Atkinson, M, Preuss, M & Fonseca, J Q D 2020, ' A statistical study of the relationship between plastic strain and lattice misorientation on the surface of a deformed Ni-based superalloy ', Acta Materialia . https://doi.org/10.1016/j.actamat.2020.05.029

Misorientation data from Electron Backscatter Diffraction (EBSD) is often used to identify strain localisation and quantify plastic strain at the microstructural scale. However, the exact relationship between local plastic strain and misorientation a

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Microstructure evolution and deformation texture during rolling of TIMETAL®407

Autor: Gaurav Singh, Michael Preuss, J. Quinta da Fonseca

Publikováno v: Singh, G, Fonseca, J Q D & Preuss, M 2020, ' Microstructure evolution and deformation texture during rolling of TIMETAL®407 ', Materialia, vol. 9 . https://doi.org/10.1016/j.mtla.2020.100596, https://doi.org/10.1016/j.mtla.2020.100596
Singh, G, Fonseca, J Q D & Preuss, M 2020, ' Microstructure evolution and deformation texture during rolling of TIMETALⓇ 407 ', Materialia . https://doi.org/10.1016/j.mtla.2020.100596

TIMETAL®407 (referred as Ti407 here afterwards) is a new titanium alloy primarily developed for combining high formability with improved strength compared to commercially pure titanium. In this study, the evolution of microstructure, spherodization

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0704abe3f309be98f0c681eebbc90a12
https://doi.org/10.1016/j.mtla.2020.100596

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On the Observation of Annealing Twins during Simulating β-Grain Refinement in Ti-6Al-4V High Deposition Rate AM with In-Process Deformation

Autor: Filomeno Martina, Christopher S. Daniel, J. Quinta da Fonseca, Jack Donoghue, Alistair Garner, Phil Prangnell, Alec Davis

Publikováno v: Donoghue, J, Davis, A E, Daniel, C S, Garner, A, Martina, F, Quinta Da Fonseca, J & Prangnell, P B 2020, ' On the Observation of Annealing Twins during Simulating β-Grain Refinement in Ti-6Al-4V High Deposition Rate AM with In-Process Deformation ', Acta Materialia, vol. 186, pp. 229-241 . https://doi.org/10.1016/j.actamat.2020.01.009, https://doi.org/10.1016/j.actamat.2020.01.009

Additive Manufacture (AM) of Ti-6Al-4V frequently leads to undesirable, coarse, columnar β-grain structures with a strong fibre texture. In Wire-Arc AM (WAAM), it has been found that the application of a low plastic strain, by methods such as inter-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12bff0d57438b59a55de2edb297b6643
https://www.research.manchester.ac.uk/portal/en/publications/on-the-observation-of-annealing-twins-during-simulating-grain-refinement-in-ti6al4v-high-deposition-rate-am-with-inprocess-deformation(c77ec9d9-47db-422f-977d-85f124bf1599).html

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The τ-plot, a multicomponent 1-D pole figure plot, to quantify the heterogeneity of plastic deformation

Autor: S. Gungor, Richard J. Moat, A. N. Forsey, T.H. Simm, J. Quinta da Fonseca, Yadunandan Das, Soran Birosca, Michael E. Fitzpatrick, Karen Perkins, D. G. L. Prakash

Publikováno v: Simm, T H, Das, Y B, Forsey, A N, Gungor, S, Fitzpatrick, M E, Prakash, D G L, Moat, R J, Birosca, S, Quinta da Fonseca, J & Perkins, K M 2020, ' The τ-plot, a multicomponent 1-D pole figure plot, to quantify the heterogeneity of plastic deformation ', Materials Characterization, vol. 160, 110114 . https://doi.org/10.1016/j.matchar.2019.110114

An approach is presented that allows multi-scale characterisations of heterogeneous deformation in crystalline materials by employing a range of characterisation techniques including: electron backscatter diffraction, digital image correlation and ne

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c183480e86d7277dbbed30fea4960ab
https://pure.manchester.ac.uk/ws/files/158959658/tauPlot.pdf

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Understanding the Role of Local Texture Variation on Slip Activity in a Two-Phase Titanium Alloy

Autor: Michael Preuss, J. Quinta da Fonseca, Albert D. Smith, Rebecca Sandala, Rhys Thomas, D. Lunt, Michael Atkinson

Publikováno v: Lunt, D, Thomas, R, Atkinson, M, Smith, A, Sandala, R, Quinta da Fonseca, J & Preuss, M 2021, ' Understanding the role of local texture variation on slip activity in a two-phase titanium alloy ', Acta Materialia, vol. 216, 117111 . https://doi.org/10.1016/j.actamat.2021.117111

During plastic deformation of engineering alloys with a hcp crystal structure, slip systems with different critical resolved shear stresses can be activated. In the case of two-phase titanium alloys such as Ti-6Al-4V, it is well established that vari

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd689f4fceb2d2e7af5fa6739073617a
https://doi.org/10.2139/ssrn.3714491

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Initial plasticity stages in Mg alloys containing Long-Period Stacking Ordered phases using High Resolution Digital Image Correlation (HRDIC) and in-situ synchrotron radiation

Autor: Pablo Pérez, N. Schell, J. Medina, Alberto Orozco-Caballero, Paloma Adeva, Andreas Stark, G. Garcés, J. Quinta da Fonseca

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
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The development of strain incompatibilities between phases in an extruded MgY2Zn1(at.%) alloy during the initial stages of plastic deformation was studied using Synchrotron X-ray Diffraction experiment during in-situ tensile test and High-resolution

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d51b1f8e03ef88662e44590dba4fecd
http://hdl.handle.net/10261/206961

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Enabling high resolution strain mapping in zirconium alloys

Autor: J. Quinta da Fonseca, Alberto Orozco-Caballero, Philipp Frankel, Michael Preuss, Peter D. Honniball, Rhys Thomas, D. Lunt

Publikováno v: Lunt, D, Orozco-Caballero, A, Thomas, R, Honniball, P, Frankel, P, Preuss, M & Quinta da Fonseca, J 2018, ' Enabling high resolution strain mapping in zirconium alloys ', Materials Characterization . https://doi.org/10.1016/j.matchar.2018.03.014

High Resolution Digital Image Correlation (HRDIC) has been established recently as a novel displacement mapping technique during mechanical loading experiments to quantify strain localisation down to the level of individual slip traces. This is achie

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5636ce5555e0d058155fe6d762a69831
https://doi.org/10.1016/j.matchar.2018.03.014

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Microscopic strain localisation in Ti-6Al-4V during uniaxial tensile loading

Autor: D. Lunt, David Rugg, J. Quinta da Fonseca, Michael Preuss

Publikováno v: Lunt, D, Quinta Da Fonseca, J, Preuss, M & Rugg, D 2017, ' Microscopic strain localisation in Ti-6Al-4V during uniaxial tensile loading ', Materials Science and Engineering A: Structural Materials: Properties, Microstructures and Processing, vol. 680, pp. 444–453 . https://doi.org/10.1016/j.msea.2016.10.099

The titanium alloy Ti-6Al-4V is investigated in terms of the effect of macrozones within the microstructure through cross correlation of local strain measurements and microstructure, using digital image correlation (DIC) and electron backscatter diff

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97356bc6797fb4f95c5d6e8417f58b76
https://doi.org/10.1016/j.msea.2016.10.099

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