Tensile properties and fracture reliability of a glass-coated Co-based amorphous microwire

Xiao-dong Wang, Huan Wang, Hong-xian Shen, Fa-xiang Qin, Da-wei Xing, Jing-shun Liu, Dong-ming Chen, Jian-fei Sun

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    Cite this article as:

    Xiao-dong Wang, Huan Wang, Hong-xian Shen, Fa-xiang Qin, Da-wei Xing, Jing-shun Liu, Dong-ming Chen, and Jian-fei Sun, Tensile properties and fracture reliability of a glass-coated Co-based amorphous microwire, Int. J. Miner. Metall. Mater., 21(2014), No. 6, pp.583-588. https://dx.doi.org/10.1007/s12613-014-0945-2
    Xiao-dong Wang, Huan Wang, Hong-xian Shen, Fa-xiang Qin, Da-wei Xing, Jing-shun Liu, Dong-ming Chen, and Jian-fei Sun, Tensile properties and fracture reliability of a glass-coated Co-based amorphous microwire, Int. J. Miner. Metall. Mater., 21(2014), No. 6, pp.583-588. https://dx.doi.org/10.1007/s12613-014-0945-2
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    Tensile properties and fracture reliability of a glass-coated Co-based amorphous microwire

    • School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China

    • 1D Nanomaterials Group, National Institute for Material Science, 1-2-1 Sengen, Tsukuba, Ibaraki, 305-0047, Japan

    基金项目: 

    This work was financially supported by the National Natural Science Foundation of China (No. 51371067). Dr. Fa-xiang Qin was supported by the Japan Society for the Promotion of Science (JSPS) fellowship and Grants-in-Aid for Scientific Research (No. 25-03205).

      通信作者:

      Jian-fei Sun E-mail: jfsun@hit.edu.cn

    中文摘要

    Co68.15Fe4.35Si12.25B15.25 (at%) amorphous microwires with a smooth surface and a circular cross-section were fabricated by the glass-coated melt spinning method. Their mechanical properties were evaluated through tensile tests of the glass-coated amorphous microwires, and their fracture reliability was estimated using two- and three-parameter Weibull analysis. X-ray diffraction and transmission electron microscopy results showed that these glass-coated Co-based microwires were mostly amorphous. The coated Co-based microwires exhibit a tensile strength of 1145 to 2457 MPa, with a mean value of 1727 MPa and a variance of 445 MPa. Weibull statistical analysis showed that the tensile two-parameter Weibull modulus of the amorphous microwires is 4.16 and the three-parameter Weibull modulus is 1.61 with a threshold value as high as 942 MPa. These results indicate that the fabricated microwires exhibit good tensile properties and fracture reliability, and thus appear to be good candidates for electronics reliability engineering applications.

     

    Tensile properties and fracture reliability of a glass-coated Co-based amorphous microwire

    Author Affilications

      • School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China

      • 1D Nanomaterials Group, National Institute for Material Science, 1-2-1 Sengen, Tsukuba, Ibaraki, 305-0047, Japan

    • Funds: 

      This work was financially supported by the National Natural Science Foundation of China (No. 51371067). Dr. Fa-xiang Qin was supported by the Japan Society for the Promotion of Science (JSPS) fellowship and Grants-in-Aid for Scientific Research (No. 25-03205).

    • Received: 26 November 2013; Revised: 05 January 2014; Accepted: 14 January 2014;
    Co68.15Fe4.35Si12.25B15.25 (at%) amorphous microwires with a smooth surface and a circular cross-section were fabricated by the glass-coated melt spinning method. Their mechanical properties were evaluated through tensile tests of the glass-coated amorphous microwires, and their fracture reliability was estimated using two- and three-parameter Weibull analysis. X-ray diffraction and transmission electron microscopy results showed that these glass-coated Co-based microwires were mostly amorphous. The coated Co-based microwires exhibit a tensile strength of 1145 to 2457 MPa, with a mean value of 1727 MPa and a variance of 445 MPa. Weibull statistical analysis showed that the tensile two-parameter Weibull modulus of the amorphous microwires is 4.16 and the three-parameter Weibull modulus is 1.61 with a threshold value as high as 942 MPa. These results indicate that the fabricated microwires exhibit good tensile properties and fracture reliability, and thus appear to be good candidates for electronics reliability engineering applications.

     

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