Fracture toughness determination for a beryllium-bearing bulk metallic glass

Journal Article · Sat Nov 01 04:00:00 EST 1997 · Scripta Materialia

DOI:https://doi.org/10.1016/S1359-6462(97)00250-9· OSTI ID:554041

Conner, R D; Rosakis, A J; Johnson, W L; Owen, D M ^[1]

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1. California Inst. of Tech., Pasadena, CA (United States)

A class of beryllium-bearing bulk metallic glass alloys has recently been developed at the California Institute of Technology. These alloys can be fabricated in the form of large ingots with minimum dimensions on the order of centimeters, which allows valid mechanical tests to be performed on these materials. Such tests were not formerly possible given the small dimensions of earlier metallic glass specimens. Some basic physical and mechanical properties have been measured on specific beryllium-bearing bulk metallic glass with a nominal composition of Zr{sub 41.25}Ti{sub 13.75}Cu{sub 12.5}Ni{sub 10}Be{sub 2.5}, by the authors and some of their co-workers. The purpose of this paper is to report on the first ever direct measurement of the fracture toughness of any bulk metallic glass system.

• OSTI ID: 554041
• Journal Information: Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: 9 Vol. 37; ISSN 1359-6462; ISSN SCMAF7
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BERYLLIUM ALLOYS
CHEMICAL COMPOSITION
COPPER ALLOYS
FRACTURE MECHANICS
FRACTURE PROPERTIES
METALLIC GLASSES
NICKEL ALLOYS
SAMPLE PREPARATION
TITANIUM ALLOYS
ZIRCONIUM ALLOYS