The Experts below are selected from a list of 80109 Experts worldwide ranked by ideXlab platform

Jun Sun - One of the best experts on this subject based on the ideXlab platform.

  • solute cluster evolution during deformation and high Strain hardening capability in naturally aged al zn mg alloy
    Acta Materialia, 2021
    Co-Authors: Peng Zhang, Kunkun Shi, Jianjun Bian, Jinyu Zhang, Yong Peng, Gang Liu, Alexis Deschamps, Jun Sun
    Abstract:

    Abstract The natural aging (NA) response of a commercial Al–Zn–Mg alloy has been tracked to investigate the effects of solute clusters on its mechanical properties. It has been observed that the increase of yield strength during NA is not accompanied by the degradation of uniform elongation due to the simultaneously Enhanced Strain hardening ability. As a consequence, the Al–Zn–Mg alloy with dense solute clusters shows a comparable yield strength, better Strain hardening ability and uniform tensile Strain relative to its artificially aged counterparts containing precipitates. This positive effect of solute clusters on Strain hardening has been systematically studied by tracing the microstructure evolution during deformation through synchrotron X-ray diffraction and atom probe tomography. We found that the dislocation multiplication dominates over the entire deformation process until failure in NA alloys; however, no effect of solute clusters on the dislocation density evolution can be identified. On the other hand, solute clusters themselves dramatically evolve, showing a dissolution-to-coarsening transition during deformation, which can be understood on the basis of a kinetic model. The experimental evidence strongly suggest that the dislocation storage and Strain-induced evolution of solute clusters are insufficient to account for the observed high Strain hardening rate, and the contribution from other possible mechanisms are estimated in a semi-quantitative manner.

  • solute cluster evolution during deformation and high Strain hardening capability in naturally aged al zn mg alloy
    Social Science Research Network, 2020
    Co-Authors: Peng Zhang, Kunkun Shi, Jianjun Bian, Jinyu Zhang, Yong Peng, Gang Liu, Alexis Deschamps, Jun Sun
    Abstract:

    The natural aging (NA) response of a commercial Al-Zn-Mg alloy has been tracked to investigate the effects of solute clusters on its mechanical properties. It is observed that the increase of yield strength during NA is not accompanied by a degeneration of uniform elongation due to the simultaneously Enhanced Strain hardening ability.  As a consequence, the Al-Zn-Mg alloy with dense solute clusters shows a comparative yield strength, better Strain hardening ability and ductility relative to its artificially aged counterparts containing precipitates. This positive effect of solute clusters on Strain hardening has been systematically studied by tracing the microstructure evolution during deformation through the synchrotron X-ray diffraction and atom probe tomography techniques. We found that the dislocation multiplication dominates over the entire deformation until failure in NA alloys; however, no effect of solute clusters on the dislocation density evolution can be identified. On the other hand, solute clusters themselves dramatically evolve, showing a dissolution-to-coarsening transition during deformation, which can be understood on the basis of a kinetic model.  The experimental phenomena strongly suggest that the dislocation storage and Strain-induced evolution of solute clusters are far from adequate to account for the observed high Strain hardening rate, and contribution from other possible mechanisms are estimated in a semi-quantitative manner.

Peng Zhang - One of the best experts on this subject based on the ideXlab platform.

  • solute cluster evolution during deformation and high Strain hardening capability in naturally aged al zn mg alloy
    Acta Materialia, 2021
    Co-Authors: Peng Zhang, Kunkun Shi, Jianjun Bian, Jinyu Zhang, Yong Peng, Gang Liu, Alexis Deschamps, Jun Sun
    Abstract:

    Abstract The natural aging (NA) response of a commercial Al–Zn–Mg alloy has been tracked to investigate the effects of solute clusters on its mechanical properties. It has been observed that the increase of yield strength during NA is not accompanied by the degradation of uniform elongation due to the simultaneously Enhanced Strain hardening ability. As a consequence, the Al–Zn–Mg alloy with dense solute clusters shows a comparable yield strength, better Strain hardening ability and uniform tensile Strain relative to its artificially aged counterparts containing precipitates. This positive effect of solute clusters on Strain hardening has been systematically studied by tracing the microstructure evolution during deformation through synchrotron X-ray diffraction and atom probe tomography. We found that the dislocation multiplication dominates over the entire deformation process until failure in NA alloys; however, no effect of solute clusters on the dislocation density evolution can be identified. On the other hand, solute clusters themselves dramatically evolve, showing a dissolution-to-coarsening transition during deformation, which can be understood on the basis of a kinetic model. The experimental evidence strongly suggest that the dislocation storage and Strain-induced evolution of solute clusters are insufficient to account for the observed high Strain hardening rate, and the contribution from other possible mechanisms are estimated in a semi-quantitative manner.

  • solute cluster evolution during deformation and high Strain hardening capability in naturally aged al zn mg alloy
    Social Science Research Network, 2020
    Co-Authors: Peng Zhang, Kunkun Shi, Jianjun Bian, Jinyu Zhang, Yong Peng, Gang Liu, Alexis Deschamps, Jun Sun
    Abstract:

    The natural aging (NA) response of a commercial Al-Zn-Mg alloy has been tracked to investigate the effects of solute clusters on its mechanical properties. It is observed that the increase of yield strength during NA is not accompanied by a degeneration of uniform elongation due to the simultaneously Enhanced Strain hardening ability.  As a consequence, the Al-Zn-Mg alloy with dense solute clusters shows a comparative yield strength, better Strain hardening ability and ductility relative to its artificially aged counterparts containing precipitates. This positive effect of solute clusters on Strain hardening has been systematically studied by tracing the microstructure evolution during deformation through the synchrotron X-ray diffraction and atom probe tomography techniques. We found that the dislocation multiplication dominates over the entire deformation until failure in NA alloys; however, no effect of solute clusters on the dislocation density evolution can be identified. On the other hand, solute clusters themselves dramatically evolve, showing a dissolution-to-coarsening transition during deformation, which can be understood on the basis of a kinetic model.  The experimental phenomena strongly suggest that the dislocation storage and Strain-induced evolution of solute clusters are far from adequate to account for the observed high Strain hardening rate, and contribution from other possible mechanisms are estimated in a semi-quantitative manner.

Gang Liu - One of the best experts on this subject based on the ideXlab platform.

  • solute cluster evolution during deformation and high Strain hardening capability in naturally aged al zn mg alloy
    Acta Materialia, 2021
    Co-Authors: Peng Zhang, Kunkun Shi, Jianjun Bian, Jinyu Zhang, Yong Peng, Gang Liu, Alexis Deschamps, Jun Sun
    Abstract:

    Abstract The natural aging (NA) response of a commercial Al–Zn–Mg alloy has been tracked to investigate the effects of solute clusters on its mechanical properties. It has been observed that the increase of yield strength during NA is not accompanied by the degradation of uniform elongation due to the simultaneously Enhanced Strain hardening ability. As a consequence, the Al–Zn–Mg alloy with dense solute clusters shows a comparable yield strength, better Strain hardening ability and uniform tensile Strain relative to its artificially aged counterparts containing precipitates. This positive effect of solute clusters on Strain hardening has been systematically studied by tracing the microstructure evolution during deformation through synchrotron X-ray diffraction and atom probe tomography. We found that the dislocation multiplication dominates over the entire deformation process until failure in NA alloys; however, no effect of solute clusters on the dislocation density evolution can be identified. On the other hand, solute clusters themselves dramatically evolve, showing a dissolution-to-coarsening transition during deformation, which can be understood on the basis of a kinetic model. The experimental evidence strongly suggest that the dislocation storage and Strain-induced evolution of solute clusters are insufficient to account for the observed high Strain hardening rate, and the contribution from other possible mechanisms are estimated in a semi-quantitative manner.

  • solute cluster evolution during deformation and high Strain hardening capability in naturally aged al zn mg alloy
    Social Science Research Network, 2020
    Co-Authors: Peng Zhang, Kunkun Shi, Jianjun Bian, Jinyu Zhang, Yong Peng, Gang Liu, Alexis Deschamps, Jun Sun
    Abstract:

    The natural aging (NA) response of a commercial Al-Zn-Mg alloy has been tracked to investigate the effects of solute clusters on its mechanical properties. It is observed that the increase of yield strength during NA is not accompanied by a degeneration of uniform elongation due to the simultaneously Enhanced Strain hardening ability.  As a consequence, the Al-Zn-Mg alloy with dense solute clusters shows a comparative yield strength, better Strain hardening ability and ductility relative to its artificially aged counterparts containing precipitates. This positive effect of solute clusters on Strain hardening has been systematically studied by tracing the microstructure evolution during deformation through the synchrotron X-ray diffraction and atom probe tomography techniques. We found that the dislocation multiplication dominates over the entire deformation until failure in NA alloys; however, no effect of solute clusters on the dislocation density evolution can be identified. On the other hand, solute clusters themselves dramatically evolve, showing a dissolution-to-coarsening transition during deformation, which can be understood on the basis of a kinetic model.  The experimental phenomena strongly suggest that the dislocation storage and Strain-induced evolution of solute clusters are far from adequate to account for the observed high Strain hardening rate, and contribution from other possible mechanisms are estimated in a semi-quantitative manner.

Kunkun Shi - One of the best experts on this subject based on the ideXlab platform.

  • solute cluster evolution during deformation and high Strain hardening capability in naturally aged al zn mg alloy
    Acta Materialia, 2021
    Co-Authors: Peng Zhang, Kunkun Shi, Jianjun Bian, Jinyu Zhang, Yong Peng, Gang Liu, Alexis Deschamps, Jun Sun
    Abstract:

    Abstract The natural aging (NA) response of a commercial Al–Zn–Mg alloy has been tracked to investigate the effects of solute clusters on its mechanical properties. It has been observed that the increase of yield strength during NA is not accompanied by the degradation of uniform elongation due to the simultaneously Enhanced Strain hardening ability. As a consequence, the Al–Zn–Mg alloy with dense solute clusters shows a comparable yield strength, better Strain hardening ability and uniform tensile Strain relative to its artificially aged counterparts containing precipitates. This positive effect of solute clusters on Strain hardening has been systematically studied by tracing the microstructure evolution during deformation through synchrotron X-ray diffraction and atom probe tomography. We found that the dislocation multiplication dominates over the entire deformation process until failure in NA alloys; however, no effect of solute clusters on the dislocation density evolution can be identified. On the other hand, solute clusters themselves dramatically evolve, showing a dissolution-to-coarsening transition during deformation, which can be understood on the basis of a kinetic model. The experimental evidence strongly suggest that the dislocation storage and Strain-induced evolution of solute clusters are insufficient to account for the observed high Strain hardening rate, and the contribution from other possible mechanisms are estimated in a semi-quantitative manner.

  • solute cluster evolution during deformation and high Strain hardening capability in naturally aged al zn mg alloy
    Social Science Research Network, 2020
    Co-Authors: Peng Zhang, Kunkun Shi, Jianjun Bian, Jinyu Zhang, Yong Peng, Gang Liu, Alexis Deschamps, Jun Sun
    Abstract:

    The natural aging (NA) response of a commercial Al-Zn-Mg alloy has been tracked to investigate the effects of solute clusters on its mechanical properties. It is observed that the increase of yield strength during NA is not accompanied by a degeneration of uniform elongation due to the simultaneously Enhanced Strain hardening ability.  As a consequence, the Al-Zn-Mg alloy with dense solute clusters shows a comparative yield strength, better Strain hardening ability and ductility relative to its artificially aged counterparts containing precipitates. This positive effect of solute clusters on Strain hardening has been systematically studied by tracing the microstructure evolution during deformation through the synchrotron X-ray diffraction and atom probe tomography techniques. We found that the dislocation multiplication dominates over the entire deformation until failure in NA alloys; however, no effect of solute clusters on the dislocation density evolution can be identified. On the other hand, solute clusters themselves dramatically evolve, showing a dissolution-to-coarsening transition during deformation, which can be understood on the basis of a kinetic model.  The experimental phenomena strongly suggest that the dislocation storage and Strain-induced evolution of solute clusters are far from adequate to account for the observed high Strain hardening rate, and contribution from other possible mechanisms are estimated in a semi-quantitative manner.

Jianjun Bian - One of the best experts on this subject based on the ideXlab platform.

  • solute cluster evolution during deformation and high Strain hardening capability in naturally aged al zn mg alloy
    Acta Materialia, 2021
    Co-Authors: Peng Zhang, Kunkun Shi, Jianjun Bian, Jinyu Zhang, Yong Peng, Gang Liu, Alexis Deschamps, Jun Sun
    Abstract:

    Abstract The natural aging (NA) response of a commercial Al–Zn–Mg alloy has been tracked to investigate the effects of solute clusters on its mechanical properties. It has been observed that the increase of yield strength during NA is not accompanied by the degradation of uniform elongation due to the simultaneously Enhanced Strain hardening ability. As a consequence, the Al–Zn–Mg alloy with dense solute clusters shows a comparable yield strength, better Strain hardening ability and uniform tensile Strain relative to its artificially aged counterparts containing precipitates. This positive effect of solute clusters on Strain hardening has been systematically studied by tracing the microstructure evolution during deformation through synchrotron X-ray diffraction and atom probe tomography. We found that the dislocation multiplication dominates over the entire deformation process until failure in NA alloys; however, no effect of solute clusters on the dislocation density evolution can be identified. On the other hand, solute clusters themselves dramatically evolve, showing a dissolution-to-coarsening transition during deformation, which can be understood on the basis of a kinetic model. The experimental evidence strongly suggest that the dislocation storage and Strain-induced evolution of solute clusters are insufficient to account for the observed high Strain hardening rate, and the contribution from other possible mechanisms are estimated in a semi-quantitative manner.

  • solute cluster evolution during deformation and high Strain hardening capability in naturally aged al zn mg alloy
    Social Science Research Network, 2020
    Co-Authors: Peng Zhang, Kunkun Shi, Jianjun Bian, Jinyu Zhang, Yong Peng, Gang Liu, Alexis Deschamps, Jun Sun
    Abstract:

    The natural aging (NA) response of a commercial Al-Zn-Mg alloy has been tracked to investigate the effects of solute clusters on its mechanical properties. It is observed that the increase of yield strength during NA is not accompanied by a degeneration of uniform elongation due to the simultaneously Enhanced Strain hardening ability.  As a consequence, the Al-Zn-Mg alloy with dense solute clusters shows a comparative yield strength, better Strain hardening ability and ductility relative to its artificially aged counterparts containing precipitates. This positive effect of solute clusters on Strain hardening has been systematically studied by tracing the microstructure evolution during deformation through the synchrotron X-ray diffraction and atom probe tomography techniques. We found that the dislocation multiplication dominates over the entire deformation until failure in NA alloys; however, no effect of solute clusters on the dislocation density evolution can be identified. On the other hand, solute clusters themselves dramatically evolve, showing a dissolution-to-coarsening transition during deformation, which can be understood on the basis of a kinetic model.  The experimental phenomena strongly suggest that the dislocation storage and Strain-induced evolution of solute clusters are far from adequate to account for the observed high Strain hardening rate, and contribution from other possible mechanisms are estimated in a semi-quantitative manner.