Enhancement of the glass forming ability of Cu-Zr-Al alloys by Ag addition

Do Soo Sung, O. Jib Kwon, Eric Fleury, Ki Bae Kim, Jae Chul Lee, Do Hyang Kim, Yu Chan Kim

Research output: Contribution to journalArticlepeer-review

96 Citations (Scopus)


The thermal stability and glass forming ability of Cu50-xZr 43Al7Agx (x=0, 1, 3, 5, and 7) bulk metallic glass alloys have been investigated. The glass forming ability in the Cu-Zr-Al-Ag alloys increased proportionally to the Ag content and show good correlations with thermal parameters such as ΔTx(=T X-Tg), Trg(=Tg/Tl) and γ(=Tx/(Tg+Tl)), For the Cu 43Zr43Al7Ag7 alloy, fully amorphous rods of 8 mm diameter were successfully fabricated by copper mold casting. Mechanical tests on this composition revealed also remarkable properties with compressive strength around 2000 MPa and large ductility.

Original languageEnglish
Pages (from-to)575-579
Number of pages5
JournalMetals and Materials International
Issue number6
Publication statusPublished - 2004 Dec

Bibliographical note

Funding Information:
This research was supported by a grant(code #: 04K1501-00510) from the Center for Nanostructured Materials Tech- nology under the 21st Century Frontier R&D Programs of the Korean Ministry of Science and Technology, and the Korea Institute of Science and Technology (KIST). One of the author (D. H. Kim) is also thankful for the partial financial support from Creative Research Initiatives of the Korean Ministry of Science and Technology, Republic of Korea.


  • Cu-based alloy
  • Ductility
  • Glass forming ability
  • Metallic glass
  • Thermal stability

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry


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