Turn off MathJax
Article Contents
Yanxia NIU, Yixuan WANG, Yan SHI. Effect of micro-alloying of Ca and Gd on microstructure and mechanical properties of Mg-Zn-Al alloy[J]. Journal of Advanced Manufacturing Science and Technology . doi: 10.51393/j.jamst.2023003
Citation: Yanxia NIU, Yixuan WANG, Yan SHI. Effect of micro-alloying of Ca and Gd on microstructure and mechanical properties of Mg-Zn-Al alloy[J]. Journal of Advanced Manufacturing Science and Technology . doi: 10.51393/j.jamst.2023003

Effect of micro-alloying of Ca and Gd on microstructure and mechanical properties of Mg-Zn-Al alloy

doi: 10.51393/j.jamst.2023003
  • Received Date: 2022-10-10
  • Rev Recd Date: 2022-11-15
  • Available Online: 2023-01-07
  • Mg-2Zn-1Al alloy was used as the matrix, and 0.2wt% Ca, 0.2wt% Gd, and 0.2wt% Ca+0.2wt% Gd were added into it. The target alloys with four components were extruded at 200℃ and extruded bars with good surface quality were obtained. Optical microscope (OM), scanning electron microscope (SEM), X-ray (XRD) and tensile mechanics experiment were adopted to analyze the effect of trace Ca and Gd on the microstructure and mechanical properties of Mg-2Zn-1Al alloy. It is found that the grain size of the as-cast matrix alloy can be refined by adding Ca and Gd, and the effect of grain refinement was the superposition of the two effects added separately. This is due to the heterogeneous nucleation of Al2Ca and the segregation of Gd in front of the solid-liquid interface leads to the inhibition of grain growth. Furthermore, the addition of Ca and Gd can make the extruded micro-structure fine and uniform, which can weak the texture to improve the mechanical properties of the alloy. And the composite addition has the best refinement effect and texture weakening effect. Therefore, the alloy with the composite addition of the two showed the best mechanical properties.
  • loading
  • [1]
    . Jia WT, Ma LF, Le QC, et al. Deformation and fracture behaviors of AZ31B Mg alloy at elevated temperature under uniaxial compression. J Alloy Comp 2019;783:863-876.
    . Xia K, Fang S, Wang G. Application of magnesium alloy in mechanical processing. Med Care 2011; 49(9):834-841.
    . Trivedi P, Nune KC. Bioactivity, cytocompatibility and effect of cells on degradation behavior of Mg-2Zn-2Gd alloy. Nanomaterials and Energy 2019; 8(2):1-9.
    . Shou H, Zheng J, Zhang Y, et al. Quasi-in-situ analysis of dependency of deformation mechanism and work-hardening behavior on texture in Mg-2Zn-0.1Ca alloy. J Alloy Compd 2019;784: 1187-1197.
    . Jiang MG, Xu C, Nakata T, et al. Rare earth texture and improved ductility in a Mg-Zn-Gd alloy after high-speed extrusion. Mater. Sci. Eng. A 2016; 667(14):233-239.
    . Liu H, Cao F, Song GL, et al. Review of the atmospheric corrosion of magnesium alloys. J Mater Sci Technol 2019;35(9):2003-2016.
    . Wang L, Zhao YQ, Chen HM, et al. Improvement of mechanical properties of magnesium alloy ZK60 by asymmetric reduction rolling. Acta Metall Sin-Eng 2018;1(31):65-72.
    . Jia WT, Le QC, Tang Y, et al. Role of pre-vertical compression in deformation behavior of Mg alloy AZ31B during super-high reduction hot rolling process. J Mater Sci Technol 2018; 34(11):103-117.
    . Su H, Wu Y, Zhang Y, et al. Enhancing the long-term anti-corrosion property of Mg alloy by quaternary phosphonium salt: Integrated experimental and theoretical approaches. Corros Sci 2021; 178:109010.
    . Wang WK, Cui GR, Zhang WL, et al. Evolution of microstructure, texture and mechanical properties of ZK60 magnesium alloy in a single rolling pass. Misrostructure and Processing 2018, 724:486-492.
    . Lee S E, Kim M S, Chae Y W, et al. Effect of intermediate heat treatment during hot rolling on the texture and formability of annealed AZ31 Mg alloy sheets. J Alloy Compd 2022;897:163238
    . Li RG, Li HR, Zhao DY, et al. High strength commercial AZ91D alloy with a uniformly fine-grained structure processed by conventional extrusion. Mater. Sci. Eng. A 2020;780:139193.
    . Jia W, Tang Y, Ning FK, et al. Optimum rolling speed and relevant temperature-and reduction-dependent interfacial friction behavior during the break-down rolling of AZ31B alloy. J Mater Sci Technol 2018; 34(11):2051-2062.
    . Jia W, Ma L, Jiao M, et al. Fracture criterion for predicting edge-cracking in Hot rolling of twin-roll casted AZ31 Mg alloy. J. Mater. Res. Technol. 2020; 9(3) 4773-4787.
    . Zhao J, Jiang B, Yuan Y, et al. Influence of Ca and Zn synergistic alloying on the microstructure, tensile properties and strain hardening of Mg-1Gd alloy. Mater. Sci. Eng. A 2020;785: 1-12.
    . Huang QY, Liu Y, Tong M, et al. Enhancing tensile strength of Mg–Al–Ca wrought alloys by increasing Ca concentration. Vacuum 2020;177: 109356.
    . Jiang J, Yin L, Lu F, et al. Microstructure and corrosion behaviour of Mg-2Gd-1Y-1Zn-0.2Zr (at-%) alloy processed by equal channel angular pressing, Corrosion Engineering. Corros. Eng 2014;49(4):316-320.
    . Zhao TS, Hu YB, He B, et al. Effect of manganese on microstructure and properties of Mg-2Gd magnesium alloy. Mater. Sci. Eng. A 2019; 23:138292
    . He SM, Zeng XQ, Peng LM, et al. Microstructure and strengthening mechanism of high strength Mg-10Gd-2Y-0.5Zr alloy. J Alloy Compd 2007;427(1/2):316-323.
    . He SM, Zeng XQ, Peng LM, et al. Precipitation in a Mg–10Gd–3Y–0.4Zr (wt.%) alloy during isothermal ageing at 250℃. J Alloy Compd 2006; 421(1-2):309-313.
    . Jung I H, Sanjari M, Kim J, et al. Role of RE in the deformation and recrystallization of Mg alloy and a new alloy design concept for Mg–RE alloys. Scr. Mater 2015; 102: 1-6.
    . Zhang Z, Couture A, Luo A. An investigation of the properties of Mg-Zn-Al alloys, Scr. Mater 1998; 39(1):45-53.
    . Shah SSA, Wu D, Chen RS, et al. Temperature effects on the microstructures of Mg-Gd-Y alloy processed by multi-direction impact forging. Acta Metall Sin-Engl 2020;2: 243-251.
    . Jiang MG, Yan H, Chen RS. Twinning, recrystallization and texture development during multi-directional impact forging in an AZ61 Mg alloy. J Alloy Compd 2015; 650: 399-409.
    . Li N, Huang G, Zhong X, et al. Deformation mechanisms and dynamic recrystallization of AZ31 Mg alloy with different initial textures during hot tension. Mater. Des 2013; 50:382-391.
    . Liu F, Bai PC, Hou XH, et al. In suit heating TEM investigation of second phase dissolution in an Al-Zn-Mg-Cu alloy. China Science 2017;12(10): 1198-1201 [Chinese].
    . Guo F, Pei RS, Jiang LY, et al. The role of recrystallization and grain growth in optimizing the sheet texture of magnesium alloys with calcium addition during annealing. J. Magnes 2020; 8(1): 252-268.
    . Huang L. Effect of Ca and CE Microalloying on Microstructure and stamping properties of AZ31 magnesium alloy[dissertation]. Chongqing: Chongqing University, 2018 [Chinese].
    . Bugnet M, Kula A, Niewczas M, et al. Segregation and clustering of solutes at grain boundaries in Mg–rare earth solid solutions. Acta Mater 2014;79: 66-73.
    . Victoria H, Yi S, Letzig D. Role of non-basal slip systems on the microstructure and texture development of ZXK-Mg alloy deformed in Plane Strain Compression at elevated temperature. Scr. Mater 2022;11432(208):1-7
    . Li RG, Zhao DY, Zhang JH, et al. Room temperature yielding phenomenon in extruded or/and aged Mg-14Gd-2Ag-0.5Zr alloy with fine-grained microstructure. Mater. Sci. Eng. A 2020; 787: 139551.
  • 加载中


    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索


    Article Metrics

    Article views (61) PDF downloads(3) Cited by()
    Proportional views


    DownLoad:  Full-Size Img  PowerPoint