Effect of substitution of Ni for Cu on glass-forming ability and mechanical properties of Mg-Cu-Tb metallic glass alloys

Qing Rong Zhang, Jin Shan Li, Yi Chuan Wang, Hong Chao Kou, Rui Hu, Lian Zhou, Heng Zhi Fu

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The Mg65Cu25-xNixTb10 (x = 0, 5, 10) bulk amorphous alloy rods with 3 mm diameters were prepared by copper mold casting technique, and the effect of Ni addition on the glass forming ability (GFA) and mechanical properties of Mg65Cu25-x NixTb10 (x = 0, 5, 10) alloys were studied by to X-ray diffractometry (XRD), differential scanning calorimeter (DSC), compression tests and scanning electron microscopy (SEM). The results show that the glass transition temperature (Tg) of the Mg65Cu25-x NixTb10 alloys increases slightly whereas the onset temperature of crystallization (Tx), decreases slightly with the increase of Ni content, which results in the decrease of the supercooled liquid region and the glass forming ability. However, an appropriate substitution of Cu by Ni(5%, mole fraction) in Mg65Cu25Tb10 significantly improves the mechanical properties.

Original languageEnglish
Pages (from-to)303-307
Number of pages5
JournalZhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals
Volume17
Issue number2
StatePublished - Feb 2007

Keywords

  • Glass-forming ability
  • Mechanical properties
  • Mg-based metallic glasses
  • Thermal stability

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