Fracture toughness study of new Zr-based Be-bearing bulk metallic glasses

Title
Fracture toughness study of new Zr-based Be-bearing bulk metallic glasses
Authors
Kim, CP서진유Wiest, ALind, MLConner, RDJohnson, WL
Keywords
bulk amorphous materials; metallic glasses; fracture; toughness
Issue Date
2009-01
Publisher
Scripta materialia
Citation
VOL 60, NO 2, 80-83
Abstract
Three new compositional variants of the Zr–Ti–Be–LTM (late transition metal) family of metallic glasses are discussed. Thermal stability, DT = Tx Tg, was increased from 82 C for Zr41.2Ti13.8Cu12.5Ni10Be22.5 (Viterloy 1) to 141 C for Zr44Ti11Cu20Be25. It is found that fracture toughness is the most distinguishing parameter characterizing the alloys in contrast to other mechanical properties. Quaternary alloys consistently had fracture toughness values exceeding 80 MPa m1/2, while for Vitreloy 1 KQ = 48.5 MPa m1/2 with a large amount of scatter. Adding iron reduced the fracture toughness to 25 MPa m1/2.
URI
http://pubs.kist.re.kr/handle/201004/35671
ISSN
1359-6462
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE