Tantalum polycrystals (grain sizes varying from 2.5 to 30 nm) generated by Voronoi tessellation were subjected to tension and compression under uniaxial strain loading at strain rates on the order of 108–109 s−1 using ...

Molecular dynamics was used to simulate tensile testing of columnar grain samples of nanocrystalline Zr with random rotations around the [0 0 0 1] axis. For grain sizes smaller than a critical size the results show an ...

The mechanical behavior of cast metal products depends directly on the mechanical properties resulting from the microstructural arrangement. Establishing correlations between these microstructural arrangements and the ...

High-entropy alloys (HEAs) are defined as alloys that normally contain five or more major elements in atomic fractions ranging from 5% to 35%. Despite the presence of a large number of components, HEAs often show rather ...

Este trabajo describe la obtención y caracterización mecánica de una aleación de acero 0,6% C con estructura de tamaño de grano inferior a 1 μm. El proceso para la obtención de piezas masivas se inicia sometiendo el polvo ...

In the pursuit for materials with improved performance, multi-principal element alloys (MPEAs) attract the interest of the scientific community, due to their large composition space. Some Cr-Co-Ni alloys stand out with ...

En el contexto de un estudio de creep en cobre reforzado con carburo de titanio nanométrico producido por pulvimetalurgia, es necesario conocer el valor del aporte del refinamiento de grano al esfuerzo de fluencia a ...