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Chinese Journal of Lasers, Volume. 47, Issue 8, 802006(2020)

Effects of Rare Earth Sc on Properties of Laser-Melted AlSi10Mg Alloy

Zhang Yujie1,2, Yu Meihua1, Yang Ruixia1,2, Yang Weiwei1,2, Wei Jingquan1,2, Wei Yuezhou1,2, and Li Weizhou1,2、*
Author Affiliations
  • 1School of Resources, Environment and Materials, Guangxi University, Nanning, Guangxi 530004, China
  • 2Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured Materials,Nanning, Guangxi 530004, China
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    AbstractGet PDF(in Chinese)
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    References (26)
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    Figures & Tables(10)
    Size distribution of AlSi10Mg powder

    Fig. 1. Size distribution of AlSi10Mg powder

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    Microstructures of AlSi10Mg alloy with different Sc contents. (a) Mass fraction of Sc is 0; (b) mass fraction of Sc is 0.1%; (c) mass fraction of Sc is 0.2%; (d) mass fraction of Sc is 0.3%; (e) mass fraction of Sc is 0.4%; (f) mass fraction of Sc is 0.5%

    Fig. 2. Microstructures of AlSi10Mg alloy with different Sc contents. (a) Mass fraction of Sc is 0; (b) mass fraction of Sc is 0.1%; (c) mass fraction of Sc is 0.2%; (d) mass fraction of Sc is 0.3%; (e) mass fraction of Sc is 0.4%; (f) mass fraction of Sc is 0.5%

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    XRD patterns of AlSi10Mg alloy with different Sc contents

    Fig. 3. XRD patterns of AlSi10Mg alloy with different Sc contents

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    SEM images of AlSi10Mg alloy with different Sc contents. (a) Mass fraction of Sc is 0; (b) mass fraction of Sc is 0.1%; (c) mass fraction of Sc is 0.2%; (d) mass fraction of Sc is 0.3%; (e) mass fraction of Sc is 0.4%; (f) mass fraction of Sc is 0.5%

    Fig. 4. SEM images of AlSi10Mg alloy with different Sc contents. (a) Mass fraction of Sc is 0; (b) mass fraction of Sc is 0.1%; (c) mass fraction of Sc is 0.2%; (d) mass fraction of Sc is 0.3%; (e) mass fraction of Sc is 0.4%; (f) mass fraction of Sc is 0.5%

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    High magnification diagram of (AlFeSiSc) phase in Fig. 4(b)

    Fig. 5. High magnification diagram of (AlFeSiSc) phase in Fig. 4(b)

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    EDS patterns of AlSi10Mg alloy with different Sc contents. (a) Mass fraction of Sc is 0; (b) mass fraction of Sc is 0.3%; (c) mass fraction of Sc is 0.4%

    Fig. 6. EDS patterns of AlSi10Mg alloy with different Sc contents. (a) Mass fraction of Sc is 0; (b) mass fraction of Sc is 0.3%; (c) mass fraction of Sc is 0.4%

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    Effects of Sc contents on physical and mechanical properties of AlSi10mg alloy. (a) Densification and micro-hardness; (b) compression stress-strain curves

    Fig. 7. Effects of Sc contents on physical and mechanical properties of AlSi10mg alloy. (a) Densification and micro-hardness; (b) compression stress-strain curves

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    SEM images of AlSi10Mg alloy with different Sc contents before and after heat treatment. (a1)--(a6) Mass fraction of Sc is from 0 to 0.5%, before heat treatment; (b1)--(b6) mass fraction of Sc is from 0 to 0.5%, 550 ℃/1 h+180 ℃/8 h; (c1)--(c6) mass fraction of Sc is from 0 to 0.5%, 550 ℃/1 h+180 ℃/12 h

    Fig. 8. SEM images of AlSi10Mg alloy with different Sc contents before and after heat treatment. (a1)--(a6) Mass fraction of Sc is from 0 to 0.5%, before heat treatment; (b1)--(b6) mass fraction of Sc is from 0 to 0.5%, 550 ℃/1 h+180 ℃/8 h; (c1)--(c6) mass fraction of Sc is from 0 to 0.5%, 550 ℃/1 h+180 ℃/12 h

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    • Table 1. Chemical composition of AlSi10Mg powder

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      Table 1. Chemical composition of AlSi10Mg powder

      ElementAlSiMgFeCuMnOther
      Mass fraction /%Bal.10.50.4<0.22<0.013<0.001<0.001

    • Table 2. Compressive properties of AlSi10Mg with different Sc contents

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      Table 2. Compressive properties of AlSi10Mg with different Sc contents

      Mass fractionof Sc /%Densification /%Micro-hardness /HVPlastic compressionRpc0.2 /MPaCompressive strengthat 25% strain /MPa
      096.50±0.5878.9±4.7117348
      0.196.69±0.5780.3±3.3122370
      0.298.39±0.5894.2±4.5144409
      0.398.37±0.5993.4±5.1131406
      0.497.45±0.5889.8±5.0130368
      0.597.14±0.5887.1±5.8128362
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    Zhang Yujie, Yu Meihua, Yang Ruixia, Yang Weiwei, Wei Jingquan, Wei Yuezhou, Li Weizhou. Effects of Rare Earth Sc on Properties of Laser-Melted AlSi10Mg Alloy[J]. Chinese Journal of Lasers, 2020, 47(8): 802006

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    Paper Information

    Category: laser manufacturing

    Received: Feb. 26, 2020

    Accepted: --

    Published Online: Aug. 17, 2020

    The Author Email: Weizhou Li (liwz2008@hotmail.com)

    DOI:10.3788/CJL202047.0802006

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology