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Microstructural evolution and mechanical behavior of copper processed by low strain amplitude multi-directional forging
(Elsevier Science SA, 2019-05)
Experiments were performed to analyze the microstructural evolution and mechanical behavior of commercial-purity copper (99.8%) processed by up to 48 cycles of multi-directional forging (MDF) using a low strain amplitude ...
Influence of Strain Amplitude on the Microstructural Evolution and Flow Properties of Copper Processed by Multidirectional Forging
(Wiley VCH Verlag, 2020-04)
Commercial-purity copper (99.8%) is processed by multidirectional forging (MDF) using strain amplitudes per compression (Δε) of 0.15 and 0.30, leading to accumulated strains (ε) of up to ≈10.8. It is shown that increasing ...
Microstructural evolution in the low strain amplitude multi-axial compression (LSA-MAC) after equal channel equal pressing (ECAP) of aluminum
(Elsevier Science, 2018-09)
Low strain amplitude multi-axial compression (LSA-MAC) increases the work hardening capacity and uniform ductility of Aluminum after Severe Plastic Deformation (SPD) through Equal Channel Angular Pressing (ECAP). The ...
Effect of Variable Amplitude Blocks’ Ordering on the Functional Fatigue of Superelastic NiTi Wires
(Springer, 2017-11-03)
Accumulation of superelastic cycles in NiTi uniaxial element generates changes on the stress–strain response. Basically, there is an uneven drop of martensitic transformation stress plateaus and an increase of residual ...
Influência da amplitude de deformação e da deformação acumulada na evolução microestrutural e comportamento mecânico do cobre processado por forjamento multidirecional
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA METALÚRGICAPrograma de Pós-Graduação em Engenharia Metalúrgica, Materiais e de MinasUFMG, 2021-07-27)
Severe Plastic Deformation (SPD) processes have been widely studied as tools for obtaining metals and their alloys with high mechanical strength associated with grain refining down a submicrometric size and the introduction ...
Paraelastic description of small-strain behaviour
(UniandesDoctorado en IngenieríaFacultad de Ingeniería, 2011)
The adequate characterization of the small-strain stiffness soil behavior plays an important role in the prediction of displacements of retaining walls and footings subjected to monotonic and/or cyclic loading. This document ...
Modeling the growth of LT and TL-oriented fatigue cracks in longitudinally and transversely pre-strained Al 2524-T3 alloy
(2011-09-23)
The aluminum alloy 2524 (Al-Cu-Mg) was developed during the 90s mainly to be employed in aircraft fuselage panels, replacing the standard Al 2024. In the present analysis the fatigue crack growth (FCG) behavior of 2524-T3 ...
Modeling the growth of LT and TL-oriented fatigue cracks in longitudinally and transversely pre-strained Al 2524-T3 alloy
(2011-09-23)
The aluminum alloy 2524 (Al-Cu-Mg) was developed during the 90s mainly to be employed in aircraft fuselage panels, replacing the standard Al 2024. In the present analysis the fatigue crack growth (FCG) behavior of 2524-T3 ...
Influence of Proton Radiation and Strain on nFinFET Zero Temperature Coefficient
(Ieee, 2016-01-01)
This paper presents for the first time the study of proton radiation and strain influence on the Zero Temperature Coefficient (ZTC) in SOI nFinFETs based on experimental data and simple analytical model. The strain improves ...