Unusual solidification behavior of a Zr-Cu-Ni-Al bulk glassy alloy made from low-purity Zr

Dmitri V. Louzguine-Luzgin, C. Suryanarayana, Takanobu Saito, Qingsheng Zhang, Na Chen, Junji Saida, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

This paper reports on the unusual solidification behavior of Zr55Cu30Al10Ni5 bulk glassy alloy produced using low-purity Zr in which both primary and eutectic-type structural constituents were formed simultaneously during solidification of the melt. Additionally, two different types of primary crystalline phases were observed. One of them was cF96 and contained all the four constituent elements. Reasons for these observations have been related to the presence of impurities in the alloy leading to inhomogeneous nucleation and consequent modification of the crystallization behavior. The structure and thermal stability of the samples were studied using X-ray diffraction, scanning and transmission electron microscopy, as well as differential scanning calorimetry methods. Although the cast alloys made with low-purity Zr showed somewhat decreased glass-forming ability, their mechanical strength was still high.

Original languageEnglish
Pages (from-to)1531-1536
Number of pages6
JournalIntermetallics
Volume18
Issue number8
DOIs
Publication statusPublished - 2010 Aug

Keywords

  • B. Glasses, metallic
  • B. Phase transformation
  • C. Casting
  • F. Electron microscopy, transmission

ASJC Scopus subject areas

  • Chemistry(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Unusual solidification behavior of a Zr-Cu-Ni-Al bulk glassy alloy made from low-purity Zr'. Together they form a unique fingerprint.

Cite this