High Strength and Ductility of a MgAg/MgGdYAg/MgAg Sandwiched Plate Produced by High-Pressure Torsion

Huo, Qile; Chen, Yaxin; Gao, Bo; Liu, Yi; Liu, Manping; Chen, Xuefei; Zhou, Hao

doi:10.1007/s40195-022-01510-7

Cited by 4 publications

(3 citation statements)

References 54 publications

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“…HSMs have been produced by combining HPT and heattreatments 79) or by designing HPT-processed LS materials. [80][81][82][83][84][85][86][87][88] The first approach is based on partial recrystallization initiated from heterogeneous nucleation at defects, resulting in multimodal or HLS materials. The second approach consists of the HPT processing of stacked metal sheets of different chemical compositions with a high mechanical mismatch.…”

Section: High Pressure Torsion (Hpt)mentioning

confidence: 99%

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Heterostructured Materials by Severe Plastic Deformation: Overview and Perspectives

Romero-Resendiz,

Naeem,

Zhu

2023

Mater. Trans.

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Heterostructured materials (HSMs) constitute heterogeneously distributed soft and hard zones with a mismatch in mechanical or physical properties of at least 100% between them. A synergistic effect resulting from the interactive coupling between the heterogeneous zones surpasses the properties predicted by the rule of mixtures. Therefore, the mechanical or physical properties of HSMs are not achievable by their homogeneous counterparts. HSM production commonly requires plastic deformation to refine the microstructure and subsequent partial recrystallization heat-treatments to obtain heterogeneous distributions of grain size, texture, or defect density. Other routes are by applying surface plastic deformation or by stacking layers with a high property mismatch between them. All of those routes can be achieved by severe plastic deformation (SPD) techniques. This overview focuses on describing the fundamentals of HSMs produced by SPD. A critical description of the physics of SPD and HSMs, as well as the factors influencing their microstructural evolution, perspectives, and outstanding issues, are included. A critical comparison of the strength-ductility relationship in HSMs produced by different SPD techniques is also included to guide upcoming research. This overview is intended to serve as a basis for understanding and designing future HSMs produced by SPD.

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Section: High Pressure Torsion (Hpt)mentioning

confidence: 99%

“…8 Comparison of yield strength and uniform elongation among HSMs produced by different SPD techniques reported in the literature. 79,80,88,90,[94][95][96]99,101,105,106,122,[124][125][126][281][282][283][284][285][286] The kinds of HSMs produced by each SPD technique are also indicated.…”

Section: Strength-to-ductility Trade-off Among Different Spd Techniquesmentioning

confidence: 99%

Heterostructured Materials by Severe Plastic Deformation: Overview and Perspectives

Romero-Resendiz,

Naeem,

Zhu

2023

Mater. Trans.

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“…In recent years, it had been found that adding rare earth elements into magnesium alloys could achieve the improvement of strength and ductility by solid solution strengthening, precipitation hardening and texture weakening [16][17][18]. Mg-Gd-Y alloy was one of the most widely studied high-performance rare-earth magnesium alloys (Mg-RE alloys) recently due to the remarkable age-hardening effect [19,20].…”

Section: Introductionmentioning

confidence: 99%

In-Situ Study on the Tensile Deformation and Fracture Mechanism of a Bimodal-Structured Mg-Gd-Y Alloy

Ning,

Gao,

Zhou

et al. 2023

Materials

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The as-extruded (EX) Mg-Gd-Y alloy studied here exhibited a bimodal structure, composed of fine dynamic recrystallized (DRXed) grains with random orientations and longitudinal coarse hot-worked grains. The slip analysis showed the DRXed grains exhibited mainly basal slips, while the hot-worked grains exhibited mainly prismatic slips during the tensile deformation. The distribution of geometrically necessary dislocations (GNDs) showed that there was strain partitioning between the fine and coarse grain regions. The hetero-deformation induced (HDI) hardening occurred between the two domains. It improves the strength and strain hardening capability of the alloy, leading to good strength-ductility synergy. Microcracks tended to nucleate at the DRXed grain boundaries, as well as at the interface between the two domains. The calculation of geometric compatibility parameter (m’) indicated that strain incompatibility between the adjacent grains induced the crack nucleation. The toughening effect of the fine DRXed grains hindered the crack propagation. However, the major crack formed at the interface between the two domains propagated unstably, due to the high stress concentration and the large crack size, causing the final failure.

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Heterostructured NiCrTi Alloy Prepared by Spark Plasma Sintering with Enhanced Mechanical Properties, Corrosion and Tribocorrosion Resistance

Xu,

Xie,

Yang

et al. 2024

Acta Metall. Sin. (Engl. Lett.)

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High Strength and Ductility of a MgAg/MgGdYAg/MgAg Sandwiched Plate Produced by High-Pressure Torsion

Cited by 4 publications

References 54 publications

Heterostructured Materials by Severe Plastic Deformation: Overview and Perspectives

Heterostructured Materials by Severe Plastic Deformation: Overview and Perspectives

In-Situ Study on the Tensile Deformation and Fracture Mechanism of a Bimodal-Structured Mg-Gd-Y Alloy

Heterostructured NiCrTi Alloy Prepared by Spark Plasma Sintering with Enhanced Mechanical Properties, Corrosion and Tribocorrosion Resistance

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