Formation of Ni57Zr20Ti22Pb1 amorphous powders by mechanical alloying

P. Y. Lee, S. S. Hung, Jason S.C. Jang, G. S. Chen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In the current study, the amorphization behavior of mechanically alloyed Ni57Zr20Ti22Pb1 powder was examined in details. The conventional X-ray diffraction results confirm that the fully amorphous powders formed after 5 hours of milling. The thermal stability of the Ni57Zr20Ti22Pb1 amorphous powders was investigated by differential scanning calorimeter (DSC). As the results demonstrated, the glass transition temperature (Tg) and the crystallization temperature (Tx) are 760 K and 850 K, respectively. The supercooled liquid regions△ Tx is 90 K. The appearance of wide supercooled liquid region may be mainly due to the Pb additions which cause the increasing differences in atomic size of mechanically alloyed Ni 57Zr20Ti22Pb1 powders.

Original languageEnglish
Title of host publicationSupplement to THERMEC 2006, 5th International Conference on PROCESSING and MANUFACTURING OF ADVANCED MATERIALS, THERMEC 2006
PublisherTrans Tech Publications Ltd
Pages2767-2772
Number of pages6
EditionPART 3
ISBN (Print)0878494286, 9780878494286
DOIs
StatePublished - 2007
Event5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006 - Vancouver, Canada
Duration: 4 Jul 20068 Jul 2006

Publication series

NameMaterials Science Forum
NumberPART 3
Volume539-543
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006
Country/TerritoryCanada
CityVancouver
Period4/07/068/07/06

Keywords

  • Amorphous phase
  • Glass transition
  • Mechanical alloying
  • Ni-based alloys
  • Supercooled liquid region

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