Effect of Minor Alloying Substitution on Glass-Forming Ability and Crystallization Behavior of a Ni<sub>57</sub>Zr<sub>22</sub>X<sub>8</sub>Nb<sub>8</sub>Al<sub>5</sub> (X = Ti, Cu) Alloy Synthesized by Mechanical Alloying

DOI Web Site Web Site 72 References
  • Yang Chao
    National Engineering Research Center of Near-net-shape Forming for Metallic Materials, South China University of Technology
  • Zeng Jin
    National Engineering Research Center of Near-net-shape Forming for Metallic Materials, South China University of Technology
  • Guo Hao
    National Engineering Research Center of Near-net-shape Forming for Metallic Materials, South China University of Technology
  • Qu ShengGuan
    National Engineering Research Center of Near-net-shape Forming for Metallic Materials, South China University of Technology
  • Li XiaoQiang
    National Engineering Research Center of Near-net-shape Forming for Metallic Materials, South China University of Technology

Bibliographic Information

Other Title
  • Effect of Minor Alloying Substitution on Glass-Forming Ability and Crystallization Behavior of a Ni₅₇Zr₂₂X₈Nb₈Al₅ (X = Ti, Cu) Alloy Synthesized by Mechanical Alloying

Search this article

Description

Ni57Zr22X8Nb8Al5 (X = Ti, Cu) metallic glass (MG) and nanocomposite powders were synthesized by mechanical alloying. Outstanding differences in glass-forming ability (GFA), thermal property, particle size and crystallization behavior were found for the two synthesized alloy powders with different alloying substitutions. The Ti-containing MG powder exhibits better GFA, higher thermal stability, lower enthalpy of crystallization and smaller particle size compared with the Cu-containing nanocomposite powder, respectively. Meanwhile, the crystallization of the Ti-containing MG powder is governed by typical volume diffusion-controlled three-dimensional growth. The better GFA for the Ti-containing alloy system could be explained by appropriate atomic-size mismatch and large negative heat of mixing among main constituent elements. The higher enthalpy of crystallization for the Cu-containing nanocomposite powder leads to the lower thermal stability and larger particle size of the powder than Ti-containing MG powder.

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 54 (9), 1844-1850, 2013

    The Japan Institute of Metals and Materials

References(72)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top