Mechanical properties and failure behavior of AZ61 magnesium alloy at high temperatures

Liu, Wenjun; Jiang, Bin; Luo, Siyi; Chen, Siqiang; Pan, Fusheng

doi:10.1007/s10853-018-2125-7

Cited by 10 publications

(4 citation statements)

References 25 publications

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“…The deformation information of materials in a certain area (CW and IR, as shown in figure 6) in the process of macroscopic forming simulation was extracted, and the interpolation method was adopted and introduced into the mesoscopic model as the boundary condition, so as to establish the connection between the macroscopic model and the mesoscopic model (as shown in figure. 7), which can ensure the authenticity of the mesoscopic deformation [15]. The results show that the constructed meso-deformation model accurately predicts the orientation transformation of grains at CW and IR during hot power spinning, and the texture type and strength consistent with the experimental results.…”

Section: Macro-macro Coupled Model Constructionsupporting

confidence: 63%

Simulation study on the texture evolution mechanism of magnesium alloy cylindrical parts with inner ribs during hot power spinning

Yuan

Xia

Cheng

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Grasping the mechanism of texture evolution during hot power spinning of magnesium alloy cylindrical parts with inner ribs, which have the dual lightweight advantages of material and structure, can provide a theoretical basis for texture regulation in the preparation of high-performance magnesium alloys. Based on the crystal plastic finite element method, the macro-meso coupled model was constructed and the simulation study of magnesium alloy cylindrical parts with inner ribs during hot power spinning was carried out. The texture evolution mechanism at the position of cylindrical wall (CW) and inner rib (IR) was revealed by tracking the change of grain orientation and the analysis of Schmid factor (SF). The results show that the c-axis of grains of magnesium alloy extruded blank gradually deflects from parallel to tangential direction (TD) to parallel to radial direction (RD). Under the action of radial compressive stress, the formation of texture at CW is attributed to the orientation deflection of grains which have larger SF of basal slip system and locate in the region of the maximum texture strength of blank, while the origin of the texture at IR mainly comes from the orientation deflection of grains with a smaller (0.1~0.2) SF of basal slip system.

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Section: Macro-macro Coupled Model Constructionsupporting

confidence: 63%

Simulation study on the texture evolution mechanism of magnesium alloy cylindrical parts with inner ribs during hot power spinning

Yuan

Xia

Cheng

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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“…The AZ91D alloy is currently the most widely used cast magnesium alloy [26]; it has a finite slip system with a hexagonal closed-packed (HCP) structure [27][28][29], which leads to poor formability [30] and low strength [31,32]. When evaluating the feasibility of solid-state recycling of AZ91D alloy chips, the key engineering consideration is to ensure that the recycled material has excellent mechanical properties after extrusion.…”

Section: Introductionmentioning

confidence: 99%

Solid-State Synthesis of SiC Particle-Reinforced AZ91D Composites: Microstructure and Reinforcement Mechanisms

Shi,

Cui,

et al. 2024

Metals

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Safe and efficient recycling of industrially generated machined chips is a high-priority technological issue. In this study, the effect of SiC particles (SiCp) on the microstructure and mechanical properties of SiCp/AZ91D composites is systematically analyzed, and the reinforcement mechanism of SiCp on composites is investigated. Different contents of SiCp/AZ91D composites are fabricated by solid-state synthesis. The results show that the incorporation of SiCp refined the grains of SiCp/AZ91D composites, which is related to the uniform distribution of SiCp at the grain boundaries. The strong bonding of SiCp with the AZ91D matrix inhibited the generation and extension of cracks, which led to the simultaneous increase in the yield strength (YS) and elongation (EL) of the SiCp/AZ91D composites. The mechanical properties of the 3 wt.% SiCp/AZ91D composites are the most superior, with an average grain size, Vickers hardness, ultimate tensile strength (UTS), YS, and EL of 6.69 ± 4.48 μm, 89.5 ± 2.5 HV, 341 ± 11 MPa, 172 ± 8 MPa, and 4.43 ± 0.18%, respectively. The reinforcement mechanisms of SiCp/AZ91D composites are mainly grain refinement and dislocation strengthening. Solid-state synthesis is an effective method for recycling magnesium alloy chips.

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“…Although the full analysis of the BTR is an established technique for quantification of the hot cracking tendency (especially in aluminum alloys 18,35 and in some magnesium alloys, [36][37][38][39][40][41] the application of this technique for Mg-Y-Zn alloys is still extremely rare. In the most publications devoted to the Mg-Y-Zn alloys, 19,23,24,26,30,42 the hot tearing temperatures are reported instead of the temperatures limiting the BTR.…”

Section: Introductionmentioning

confidence: 99%

Hot crack susceptibility of cast Mg₉₇Y₂Zn₁

Krbetschek

Trân

Wemme

et al. 2021

Engineering Reports

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Formation of hot cracks in alloys is a critical issue for their production and processing. In this study, the susceptibility of the cast Mg97Y2Zn1 alloy containing long period stacking ordered (LPSO) structures to hot cracking was investigated using tensile tests in a Gleeble testing machine, and described in terms of the brittle temperature range (BTR), which was concluded from the zero strength temperature (ZST), zero ductility temperature, and ductility recovery temperature (DRT). The zero ductility and the DRTs were obtained directly from the mechanical tests, verified using fracture surface analysis in a scanning electron microscope, and correlated with the solidification range that was determined using differential scanning calorimetry. The extent of the BTR was 31 K, the width of the solidification range 100 K. The ZST coincided with the dissolution temperature of the LPSO structures, which means that the hot cracking susceptibility of the cast Mg97Y2Zn1 alloy is dominated by the dissolution of LPSO structures.

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Mechanical properties and failure behavior of AZ61 magnesium alloy at high temperatures

Cited by 10 publications

References 25 publications

Simulation study on the texture evolution mechanism of magnesium alloy cylindrical parts with inner ribs during hot power spinning

Simulation study on the texture evolution mechanism of magnesium alloy cylindrical parts with inner ribs during hot power spinning

Solid-State Synthesis of SiC Particle-Reinforced AZ91D Composites: Microstructure and Reinforcement Mechanisms

Hot crack susceptibility of cast Mg₉₇Y₂Zn₁

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Mechanical properties and failure behavior of AZ61 magnesium alloy at high temperatures

Cited by 10 publications

References 25 publications

Simulation study on the texture evolution mechanism of magnesium alloy cylindrical parts with inner ribs during hot power spinning

Simulation study on the texture evolution mechanism of magnesium alloy cylindrical parts with inner ribs during hot power spinning

Solid-State Synthesis of SiC Particle-Reinforced AZ91D Composites: Microstructure and Reinforcement Mechanisms

Hot crack susceptibility of cast Mg97Y2Zn1

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Product

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Hot crack susceptibility of cast Mg₉₇Y₂Zn₁