New amorphous alloys in Al-Ca and Al-Ca-M (M = Mg or Zn) systems

A. Inoue, N. Nishiyama, K. Hatakeyama, T. Masumoto

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Binary Al-Ca alloys were amorphized in the composition range of 9 to 11 at% Ca by melt spinning. The onset temperature of crystallization (Tx), Vickers hardness (Hv), Young's modulus and tensile fracture strength are in the range of 408 to 425 K, 130 to 153, 29 to 31 GPa and 390 to 480 MPa, respectively. The Tx and Hv values tend to increase with increasing Ca content. The crystallization takes place through two stages of Am → Am + Al → Al + Al4Ca. The addition of Mg, Zn or TM (TM = Fe, Co, Ni, Cu) was also found to be effective for the extension of the glass formation range to the lower and higher Ca concentration sides. The formation of the amorphous phase in the Al-Ca binary alloys consisting of light weight metals is important to the development of Al-based alloys with high specific strength.

Original languageEnglish
Pages (from-to)282-285
Number of pages4
JournalMaterials Transactions, JIM
Volume35
Issue number4
DOIs
Publication statusPublished - 1994

ASJC Scopus subject areas

  • Engineering(all)

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