Stress-induced damage evolution in cast AlSi12CuMgNi alloy with one- and two-ceramic reinforcements

Cabeza, Sandra; Mishurova, Tatiana; Garcés, G.; Sevostianov, Igor; Requena, Guillermo; Bruno, Giovanni

doi:10.1007/s10853-017-1182-7

Cited by 15 publications

(46 citation statements)

References 67 publications

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“…To the best of our knowledge, this is the only approach suitable for the calculation of the residual stresses in anisotropic multiphase composites. Based on the analysis of the X-ray computed tomography (XCT) images, [13] materials were modeled as a multiphase transversely isotropic composite consisting of a continuous aluminum alloy matrix and three or four families of inhomogeneities (Type I and II, respectively):…”

Section: Micromechanical Modelingmentioning

confidence: 99%

“…The volume fractions of eutectic Si and IM phases were taken based on the analysis of XCT reconstructed volumes and previously reported by Cabeza et al [13] The thermal and mechanical properties of the constituents are summarized in Table II (which includes macroscopic and peak-specific properties). In case of IMs, the global (averaged) values of the elastic constants (E and m) were calculated based on nanoindentation results, [35] while the global value of the CTE was calculated based on literature results of high temperature X-ray diffraction experiments.…”

Section: Micromechanical Modelingmentioning

confidence: 99%

“…The advances of composite materials with high-performance mechanical properties go together with a complex microstructure, leading to unknown residual stress state after fabrication. In our previous investigations, [13][14][15] we have followed the evolution of internal stresses as a function of applied load for the same materials investigated in this work. A model to predict such stresses has been developed, which successfully rationalize the experimental observations.…”

Section: Introductionmentioning

confidence: 99%

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Explaining Deviatoric Residual Stresses in Aluminum Matrix Composites with Complex Microstructure

Evsevleev

Sevostianov

Mishurova

et al. 2020

Metall Mater Trans A

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The residual stresses in multiphase metal matrix composites with both random planar-oriented short fibers and particles were studied by neutron diffraction and by a model based on the reformulation of classic Maxwell's homogenization method. Contrary to common understanding and state-of-the-art models, we experimentally observed that randomly oriented phases possess non-hydrostatic residual stress. The recently developed modeling approach allows calculating the residual stress in all phases of the composites. It rationalizes the presence of deviatoric stresses accounting for the interaction of random oriented phases with fibers having preferential orientation.

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Section: Micromechanical Modelingmentioning

confidence: 99%

Section: Micromechanical Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Explaining Deviatoric Residual Stresses in Aluminum Matrix Composites with Complex Microstructure

Evsevleev

Sevostianov

Mishurova

et al. 2020

Metall Mater Trans A

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“…The lattice strains in both phases of Al/SiC p composite were already measured in situ during heat treatment [25], during elastic-plastic loading [14,24] and evolution of residual stresses was determined after thermal or mechanical treatments [13,26]. A significant influence on stress partitioning between phases was also determined using diffraction during damage process [27,28]. The interpretation of the diffraction data using Eshelby type models (including self-consistent method) showed that important mismatch stresses are induced during composite cooling due to the difference in thermal expansion coefficient of the phases [29].…”

Section: Introductionmentioning

confidence: 99%

Neutron Diffraction Study of Phase Stresses in Al/SiCp Composite During Tensile Test

et al. 2018

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The stress partitioning between phases, phase stress relaxation as well as origins of Al/SiC p composite strengthening are studied in the present work. In this aim, the measurements of lattice strains by neutron diffraction were performed in situ during tensile test up to sample fracture. The experimental results were compared with results of elastic-plastic self-consistent model. It was found that thermal origin phase stresses relax at the beginning of plastic deformation of Al/SiC p composite. The evolution of lattice strains in both phases can be correctly simulated by the elastic-plastic self-consistent model only if the relaxation of initial stresses is taken into account. A major role in the strengthening of the studied composite plays a transfer of stresses to the SiC p reinforcement, however the hardness of Al metal matrix is also important.

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“…Composites consisting of Al‐based alloy, reinforced with 15% Al 2 O 3 short fibers, as well as with 7% of such fibers + 15% SiC particulates, were described . Synchrotron computed tomography was used for testing the volume fraction, the orientation and the distribution of the different phases.…”

Section: Introductionmentioning

confidence: 99%

On the Hybrid Effects of Alumina, Silicon Carbide, and Carbon Ultrafine Additives, Used in the Optimization of Sintered MMCs Properties

Feldshtein¹,

Dyachkova

Patalas‐Maliszewska³

et al. 2018

Adv Eng Mater

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This paper describes the changes of structure and properties of MMCs, based on FeGr1 material impregnated with the machine oil and with alumina, silicon carbide, and carbon ultrafine additives. The hybrid effects of these additives were investigated using the Simplex Lattice Design as one of DoE methods. With the addition of alumina and silicon carbide, the ferrite content increases significantly in comparison with the base material. Depending on the content and composition of the additives, MMC hardness may be reduced by up to 42% or increased by up to 20%, while residual porosity increases by up to 10-35% in comparison with the base material; sample shrinkages are between À0.9% up to À2.55%. When impregnating with oil, its content depends on the residual porosity and is equal to 1.1-2.2% of the MMC sample mass. The content of additives is determined, thus ensuring optimal values in the parameters investigated.

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Stress-induced damage evolution in cast AlSi12CuMgNi alloy with one- and two-ceramic reinforcements

Cited by 15 publications

References 67 publications

Explaining Deviatoric Residual Stresses in Aluminum Matrix Composites with Complex Microstructure

Explaining Deviatoric Residual Stresses in Aluminum Matrix Composites with Complex Microstructure

Neutron Diffraction Study of Phase Stresses in Al/SiCp Composite During Tensile Test

On the Hybrid Effects of Alumina, Silicon Carbide, and Carbon Ultrafine Additives, Used in the Optimization of Sintered MMCs Properties

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