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Room temperature plastic deformation behavior of ZrCuNiAl bulk metallic glasses

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Abstract

The Zr62.55Cu17.55Ni9.9Al10 bulk metallic glass (BMG) was prepared by using copper-mold suction-casting. X-ray diffraction and differential scanning calorimetry were utilized to determine its structure and thermal stability. Uniaxial compression and Rockwell indentation tests were adopted to study the plastic deformation behavior at room temperature. The results show that the glass transition temperature and the onset temperature of exothermic reaction of the BMG are 651.5 and 748 K, respectively. During the compression test, the BMGs undergo an engineering strain of about 2.5%, i.e., true strain of 2.8%, and then fracture. The BMGs deform via the formation and propagation of shear bands. Under indentation loading, the BMGs deform through the formation of radiation-like and circular shear bands. The circular shear bands form earlier than the radiation-like ones. The formation mechanism of shear bands in the BMGs was analyzed and discussed.

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Authors and Affiliations

  1. Faculty of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, China

    Ping-jun Tao, Yuan-zheng Yang, Zhi-wei Xie & Xian-chao Chen

  2. College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China

    Xiao-jun Bai

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  1. Ping-jun Tao
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  2. Yuan-zheng Yang
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  3. Xiao-jun Bai
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  4. Zhi-wei Xie
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  5. Xian-chao Chen
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Corresponding author

Correspondence to Yuan-zheng Yang.

Additional information

This work was financially supported by the National Natural Science Foundation of China (Nos.50971046, 50771037, and 50371020) and the Doctoral Fund of the Ministry of Education of China (No.200805620004).

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Tao, Pj., Yang, Yz., Bai, Xj. et al. Room temperature plastic deformation behavior of ZrCuNiAl bulk metallic glasses. Int J Miner Metall Mater 17, 327–330 (2010). https://doi.org/10.1007/s12613-010-0313-9

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  • DOI: https://doi.org/10.1007/s12613-010-0313-9

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