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Crystallization of amorphous Ni-Zr alloys during heating with molecular dynamics simulations
  • ISSN号:1005-8850
  • 期刊名称:北京科技大学学报(英文版)
  • 时间:0
  • 页码:73-76
  • 语言:中文
  • 分类:TG146.15[金属学及工艺—金属材料;一般工业技术—材料科学与工程;金属学及工艺—金属学]
  • 相关基金:This work was financially supported by the National Natural Science Foundation of China (No.50225103, 50471001 and 50631010).
  • 相关项目:块体金属玻璃形成过程中的微观结构演变与玻璃形成能力
中文摘要:

The heating processes of amorphous NixZr100-x(x=10, 16.7, 33.3) alloys were investigated with molecular dynamics simu- lations. The simulation results show that the crystallization of amorphous alloys during heating is controlled by the heating rate and the alloy’s composition. The slower heating rate depresses the crystallizing temperatures and the melting temperatures of the amor- phous alloys. Crystallization can be eliminated at rapid heating rates, the critical value of which decreases with increasing Ni content of the studied amorphous Ni-Zr alloys. Different crystalline structures formed during crystallizing depend on the heating rate, and the transition between crystalline structures was observed in the heating processes.

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