Coalescence and subsequent twinning of nanocrystals during deformation of CuZr-based metallic glasses: The grain size effect

Autor: Naser A. Alsaleh, K. Hajlaoui, Nashmi H. Alrasheedi, Alain Reza Yavari

Publikováno v: Journal of Non-Crystalline Solids
Journal of Non-Crystalline Solids, Elsevier, 2017, 464, pp.39-43. ⟨10.1016/j.jnoncrysol.2017.03.019⟩

International audience; We report in-situ HRTEM observations that reveal subsequent structural events occurring during deformation of CuZr-based metallic glass. During loading, B2-CuZr nanocrystals precipitate and growth in the amorphous matrix, and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ebee56f86b30bb76a1d2ee0ae54f9926
https://doi.org/10.1016/j.jnoncrysol.2017.03.019

Correlation between hydrogen storage properties and textures induced in magnesium through ECAP and cold rolling

Autor: Alberto Moreira Jorge, Ricardo P. Nogueira, Alain Reza Yavari, Terence G. Langdon, Walter José Botta, Maria Regina Martins Triques, Claudio Shyinti Kiminami, Gisele Ferreira de Lima

Publikováno v: International Journal of Hydrogen Energy
International Journal of Hydrogen Energy, Elsevier, 2014, 39 (8), pp.3810-3824. ⟨10.1016/j.ijhydene.2013.12.154⟩

International audience; It is feasible to obtain a significant enhancement of the hydrogen storage capability in magnesium by selecting an appropriate sequence of mechanical processing. The Mg metal may be produced with different textures which will

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f617fed8e060219128f69fabc0c3ade
https://doi.org/10.1016/j.ijhydene.2013.12.154

Direct observation of shear–induced nanocrystal attachment and coalescence in CuZr-based metallic glasses: TEM investigation

Autor: Alain Reza Yavari, Nashmi H. Alrasheedi, K. Hajlaoui

Publikováno v: Journal of Alloys and Compounds
Journal of Alloys and Compounds, Elsevier, 2016, 665, pp.339-344. ⟨10.1016/j.jallcom.2016.01.017⟩

International audience; In-situ tensile straining tests were performed in a transmission electron microscope (TEM) to analyse the deformation processes in CuZr-based metallic glasses and to directly observe the phase transformation occurrence. We rep

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b49b808f866c13ba57106a0d3611959d
https://hal.archives-ouvertes.fr/hal-01367844

Shear bands in metallic glasses: Size effects on thermal profiles

Autor: Y. Zhang, A.L. Greer, Daniel B. Miracle, A. Concustell, Alain Reza Yavari

Publikováno v: Acta Materialia
Acta Materialia, Elsevier, 2011, 59 (7), pp.2831-2840. ⟨10.1016/j.actamat.2011.01.022⟩

International audience; The characteristic dimensions of the hot, liquid zone behind a moving shear-band front in a metallic glass are analyzed. In addition to the expected dependence on material constants, the thickness of the zone is proportional t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63a33e263c135384681b92b50aaa791f
https://doi.org/10.1016/j.actamat.2011.01.022

FeCoBSiNb bulk metallic glasses with Cu additions

Autor: Gavin Vaughan, Mihai Stoica, Stefan Roth, Alain Reza Yavari, Jürgen Eckert, Trisha Karan, Shanker Ram

Publikováno v: physica status solidi c. 7:1331-1335

The effect of Cu additions (1, 2 and 3 at.%) on the glass forming ability (GFA) and magnetic properties of [(Fe0.5Co0.5)0.75Si0.05B0.20]96Nb4 is studied. As the Cu content increases, the GFA deteriorates. The structure of the samples, as well as the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0673a4c3078f2fc97edfc6e2eb7ae900
https://doi.org/10.1002/pssc.200983375