Effect of Ni Addition on the Glass Forming Ability and Mechanical Properties in Cu<SUB>60</SUB>Zr<SUB>22</SUB>Ti<SUB>18</SUB> Metallic Glass Alloy

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  • Lee Dong-Myoung
    Advanced Functional Material Team, Korea Institute of Industrial Technology Department of Metallurgical Engineering, College of Engineering, Inha University
  • Shin Seung-Yong
    Advanced Functional Material Team, Korea Institute of Industrial Technology
  • Sun Ju-Hyun
    Advanced Functional Material Team, Korea Institute of Industrial Technology
  • Lee Jin-Kyu
    Advanced Functional Material Team, Korea Institute of Industrial Technology
  • Lee Chi-Hwan
    Department of Metallurgical Engineering, College of Engineering, Inha University

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  • Effect of Ni addition on the glass forming ability and mechanical properties in Cu60Zr22Ti18 metallic glass alloy

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Abstract

This paper investigates the effects of Ni addition on the glass forming ability (GFA) and mechanical properties in Cu60−xNixZr22Ti18 (x=0∼15) metallic glass alloys. Partial substitution of Cu by Ni in the alloys improved the GFA. By increasing Ni content x from 0 to 6, the supercooled liquid region (ΔTx) and crystallization temperature (Tx) were increased, whereas the liquidus temperature decreased to reach the lowest value at x=6. The lowering of liquidus temperature improved the GFA, and the maximum GFA of 6 mm in diameter was obtained at x=6. The compressive strength and micro hardness of the alloys were raised by increasing Ni content, and the Ni containing alloy showed some macroscopic plasticity after yielding.

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 49 (7), 1558-1562, 2008

    The Japan Institute of Metals and Materials

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