Glass forming and thermal properties of the Mg65Cu 25Gd10-xNdx(x=0 ∼ 10) amorphous alloys

L. J. Chang, B. C. Yang, P. T. Chiang, J. S.C. Jang, J. C. Huang

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

3 Scopus citations

Abstract

The Mg65Cu25Gd10-xNdx(x=0 ∼ 10) amorphous alloy rods with 3-6 mm in diameter were prepared by Cu-mold injection method. The thermal properties and mechanical properties of these amorphous alloys have been investigated by DSC, SEM with EDS capability, X-ray diffractometry (XRD) and Vickers hardness test. The XRD revealed that these entire as-quenched Mg65Cu25Gd10-xNdx alloy rods exhibit a broaden diffraction pattern of amorphous phase. A clear Ts (glass transition temperature) and supercooled region (about 30-60 K) were revealed for all of those Mg65Cu25Gd10-xNd x alloys. In addition, the single stage crystallization of the Mg65Cu25Gd10 alloy was found to change into two stages crystallization when the Nd element was added into this alloy. In parallel, the crystallization temperature (Tx) and supercooled region (ΔTx) presents a decreasing trend with increasing Nd content, The lowest liquidus temperature (T1, about 721 K) occurs at the Mg65Cu25Gd8Nd2 alloy. In addition, The Mg65Cu25Gd8Nd2 alloy exhibits the high y value (0.416, defined as y= Tx/T8+T 1), a relatively high Trg (0.59, defined as Trg = Tg/T1/) and the highest hardness in these alloys.

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
Pages2106-2110
Number of pages5
EditionPART 2
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 2
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
  • Mechanical properties
  • Mg-based alloy
  • Thermal property

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