Mg–Ca–Zn Bulk Metallic Glasses with High Strength and Significant Ductility

The development of Mg–Ca–Zn metallic glasses with improved bulk glass forming ability, high strength, and significant ductility is reported. A typical size of at least 3–4 mm amorphous samples can be prepared using conventional casting techniques. By varying the composition, the mass density of thes...

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Bibliographic Details
Published inJournal of materials research Vol. 20; no. 8; pp. 1935 - 1938
Main Authors Gu, X., Shiflet, G.J., Guo, F.Q., Poon, S.J.
Format Journal Article
LanguageEnglish
Published New York, USA Cambridge University Press 01.08.2005
Subjects
Calorimetry
Casting
Metallic glass
Rapid Communications
Casting
Calorimetry
Metallic glass
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Summary:The development of Mg–Ca–Zn metallic glasses with improved bulk glass forming ability, high strength, and significant ductility is reported. A typical size of at least 3–4 mm amorphous samples can be prepared using conventional casting techniques. By varying the composition, the mass density of these light metal based bulk amorphous alloys ranges from 2.0 to 3.0 g/cm3. The typical measured microhardness is 2.16 GPa, corresponding to a fracture strength of about 700 MPa and specific strength of around 250–300 MPa cm3/g. Unlike other Mg- or Ca-based metallic glasses, the present Mg–Ca–Zn amorphous alloys show significant ductility.
Bibliography:istex:59DC72429C6718032EC3667C29A07EDFB63E1E1F
ark:/67375/6GQ-N7ZTFW79-K
PII:S0884291400089342
ArticleID:08934
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0884-2914
2044-5326
DOI:10.1557/JMR.2005.0245