Y添加Ti 40Zr 25Cu 9Ni 8Be 18非晶合金的纳米晶化及力学性能

Z.T. Shan, B.W. Ruan, H.Z. Tao, Yuanzheng Yue

Publikation: Konferencebidrag uden forlag/tidsskriftKonferenceabstrakt til konferenceForskningpeer review

1 Citationer (Scopus)
43 Downloads (Pure)

Abstrakt

(Ti 40Zr 25Cu 9Ni 8Be 18) 100-xY x (x=0,1.0,1.5,2.0,3.0) alloy rods with 3mm in diameter were fabricated by copper mold casting method. The microstructures, nano-crystallization and mechanical properties of the alloys were investigated by X-ray diffractometry(XRD), scanning electron microscopy(SEM), transmission electron microscopy(TEM), differential scanning colorimetry(DSC) and uniaxial compressive test.The results show that with 1.0%(atom fraction, the same below) addition of Y, the alloy presents amorphous nature by X-ray examination, with 1.5% of Y addition, nano-crystallization of the amorphous alloy is induced. Crystalline phases with the size of 5-20nm can be observed distributed in the amorphous matrix by high resolution transmission electron microscopy. The alloy with 1.5% of Y addition presents the fracture strength of 1990MPa, at the plastic strain of 3% upon uniaxial compressive test. The number of shear bands is increased in the fracture surfaces of the alloys with Y addition. The interference of shear bands hinders inhomogeneous deformation, increases the fracture strength and plasticity of the alloy.

Bidragets oversatte titelNano-crystallization and Mechanical Properties of Y Addition Ti 40Zr 25Cu 9Ni 8Be 18 Amorphous Alloy
OriginalsprogKinesisk
Publikationsdato20 jul. 2018
Antal sider6
DOI
StatusUdgivet - 20 jul. 2018

Emneord

  • Mechanical property
  • Nano-crystallization
  • Ti-based amorphous alloy
  • Y addition

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