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首页> 外文期刊>Materials Science and Engineering >Effect of Ti addition on the glass forming ability, crystallization, and plasticity of (Zr_(64.13)Cu_(15.75)Ni_(10.12)Al_(10))_(100-x)Ti_x bulk metallic glasses
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Effect of Ti addition on the glass forming ability, crystallization, and plasticity of (Zr_(64.13)Cu_(15.75)Ni_(10.12)Al_(10))_(100-x)Ti_x bulk metallic glasses

机译：钛添加对（Zr_（64.13）Cu_（15.75）Ni_（10.12）Al_（10））_（100-x）Ti_x大块金属玻璃的玻璃形成能力，结晶和可塑性的影响

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摘要

A series of (Zr_(64.13)Cu_(15.75)Ni_(10.12)Al_(10))_(100-x)Ti_x (x=0-7) bulk metallic glasses were prepared by water-cooled copper mold casting method. The glass forming ability, crystallization behavior, and plasticity of the (Zr_(64.13)Cu_(15.75)Ni_(10.12)Al_(10))_(100-x)Ti_x alloys with different Ti contents were studied. The reduced glass transition temperature increases with Ti addition and a maximum value of 0.562 is achieved at x=5, indicating that the glass forming ability increases with Ti addition. Compared with that of one crystallization step for the sample without Ti addition, the Ti (x ≥ 2) containing alloys exhibit a two-step crystallization behavior. In addition, the initial crystallization temperature decreases from 744 to 684 K as x increases from 0 to 7. Icosahedral quasicrystal phase was found to precipitate in the amorphous matrix in the first crystallization step, implying that strong icosahedral short-range order may exist in the Ti (x ≥ 2) containing alloys. Moreover, the (Zr_(64.13)Cu_(15.75)Ni_(10.12)Al_(10))_(100-x)Ti_x bulk metallic glasses exhibit excellent plasticity, i.e., a plastic engineering strain in compression larger than 80% for x ≤ 6.
机译：通过水冷铜铸模法制备了一系列（Zr_（64.13）Cu_（15.75）Ni_（10.12）Al_（10））_（100-x）Ti_x（x = 0-7）大块金属玻璃。研究了不同Ti含量的（Zr_（64.13）Cu_（15.75）Ni_（10.12）Al_（10））_（100-x）Ti_x合金的玻璃形成能力，结晶行为和可塑性。降低的玻璃化转变温度随着添加Ti而增加，并且在x ＝ 5时达到0.562的最大值，表明玻璃形成能力随着添加Ti而增加。与不添加Ti的样品的一个结晶步骤相比，含Ti（x≥2）的合金表现出两步结晶行为。另外，随着x从0增大到7，初始结晶温度从744 K降低到684K。在第一结晶步骤中发现二十面体准晶体相沉淀在非晶基质中，这意味着强二十面体短程有序存在。含Ti（x≥2）的合金。此外，（Zr_（64.13）Cu_（15.75）Ni_（10.12）Al_（10））_（100-x）Ti_x大块金属玻璃表现出优异的可塑性，即，对于x≤，压缩时的塑性工程应变大于80％。 6。

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  • 来源
    《Materials Science and Engineering》 |2015年第15期|345-349|共5页
  • 作者

    Bo Shi; Yuanli Xu; Wenli Ma; Chao Li; Carmen Verge Estefania; Jiangong Li;

  • 作者单位

    Institute of Materials Science and Engineering and MOE Key Laboratory for Magnetism and Magnetic Materials, Lanzhou University, Lanzhou 730000, China;

    Institute of Materials Science and Engineering and MOE Key Laboratory for Magnetism and Magnetic Materials, Lanzhou University, Lanzhou 730000, China;

    Institute of Materials Science and Engineering and MOE Key Laboratory for Magnetism and Magnetic Materials, Lanzhou University, Lanzhou 730000, China;

    Institute of Materials Science and Engineering and MOE Key Laboratory for Magnetism and Magnetic Materials, Lanzhou University, Lanzhou 730000, China;

    Institute of Materials Science and Engineering and MOE Key Laboratory for Magnetism and Magnetic Materials, Lanzhou University, Lanzhou 730000, China;

    Institute of Materials Science and Engineering and MOE Key Laboratory for Magnetism and Magnetic Materials, Lanzhou University, Lanzhou 730000, China;

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  • 正文语种 eng
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  • 关键词

    Bulk metallic glass; Minor addition; Glass forming ability; Crystallization behavior; Plasticity;

    机译：大块金属玻璃;少量添加;玻璃成型能力;结晶行为;可塑性;

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