Role of Al addition in modifying microstructure and mechanical properties of Mg-1.0 wt% Ca based alloys

Xie, Dongsheng; Pan, Hucheng; Li, Man; Li, Jingren; Ren, Yuping; Huang, Qingli; Chao, Yang; Ma, Lifeng; Qin, Gaowu

doi:10.1016/j.matchar.2020.110608

Cited by 17 publications

(2 citation statements)

References 55 publications

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“…The average DRXed grain size of the AX10-260 sample is estimated to be ∼1.28 µm (Figure 2(d)), which is obviously refined compared to that of the AX10-290 sample. The pole figures in the insets of Figure 2(f, i) show that the typical fibre texture with the 〈10-10〉 axis of the Mg matrix being parallel to ED has been produced in both AX10-260 and AX11-260 samples (Figure 2(e)), and the high texture intensity is mainly ascribed to the large area fraction of un-DRXed regions with a strong basal texture [27-29]. Specially, un-DRXed regions are subdivided by the low angular grain boundaries (LAGBs) and the sub-grain lamellae have been formed (Figure 2(e)).…”

Section: Resultsmentioning

confidence: 99%

Effect of Ca content on microstructure and strength of as-extruded Mg-1.0Al-xCa alloy

Wang

et al. 2023

Materials Science and Technology

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In this work, the effects of Ca content and extrusion temperature on the microstructures and mechanical properties of Mg–1Al– xCa alloys have been investigated. For Mg–1.0Al–0.4Ca (wt-%, AX10) dilute alloy, decreasing extrusion temperature from 290°C to 260°C can inhibit the dynamic recrystallisation (DRX) process, and the yield strength (YS) is also increased from ∼266 ± 6 MPa to ∼309 ± 3 MPa. When increasing the Ca content, Mg–1.0Al–0.8Ca (wt-%, AX11), a higher density of the Al2Ca phase is dispersed at the grain boundaries, which can further restrict the growth of DRXed grains, only ∼1.0 µm. Consequently, the higher YS of ∼330 ± 5 MPa can be obtained. The relevant results can shed light on designing other high-strength and low-alloyed Mg wrought alloys.

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Section: Resultsmentioning

confidence: 99%

Effect of Ca content on microstructure and strength of as-extruded Mg-1.0Al-xCa alloy

Wang

et al. 2023

Materials Science and Technology

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“…Up to now, some new Mg alloys, such as Mg-Sm- [7,8], Mg-Ca- [9,10], Mg-Al- [11], Mg-Sn- [12], Mg-Mn- [13,14] and Mg-Zn-based [15] alloys, have been fabricated successfully to achieve this goal. In order to further enrich the existing low-cost, high-performance Mg alloy systems, Mg-Bi-based series alloys have been exploited in recent years, and they have great potential in developing RE-free materials with outstanding comprehensive mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Establishment of Constitutive Model and Analysis of Dynamic Recrystallization Kinetics of Mg-Bi-Ca Alloy during Hot Deformation

Wang

Zhai

et al. 2022

Materials

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The flow behavior of the solution-treated Mg-3.2Bi-0.8Ca (BX31, wt.%) alloy was systematically investigated during hot compression at different deformation conditions. In the present study, the strain-related Arrhenius constitutive model and dynamic recrystallization (DRX) kinetic model were established, and the results showed that both two models had high predictability for the flow curves and the DRX behavior during hot compression. In addition, the hot processing maps were also made to confirm a suitable hot working range. Under the assistance of a hot processing map, the extrusion parameters were selected as 573 K and 0.5 mm/s. After extrusion, the as-extruded alloy exhibited a smooth surface, a fine DRX structure with weak off-basal texture and good strength–ductility synergy. The newly developed strong and ductile BX31 alloy will be helpful for enriching low-cost, high-performance wrought Mg alloy series for extensive applications in industries.

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Effect of Al addition and rolling reduction on microstructure and texture evolution of Mg–3Sn alloy during high-speed rolling

Pei,

Wang,

et al. 2023

J Mater Sci

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Role of Al addition in modifying microstructure and mechanical properties of Mg-1.0 wt% Ca based alloys

Cited by 17 publications

References 55 publications

Effect of Ca content on microstructure and strength of as-extruded Mg-1.0Al-xCa alloy

Effect of Ca content on microstructure and strength of as-extruded Mg-1.0Al-xCa alloy

Establishment of Constitutive Model and Analysis of Dynamic Recrystallization Kinetics of Mg-Bi-Ca Alloy during Hot Deformation

Effect of Al addition and rolling reduction on microstructure and texture evolution of Mg–3Sn alloy during high-speed rolling

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