MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Formation of Bulk Pd-Cu-Si-P Glass with Good Mechanical Properties
Li LiuAkihisa InoueTao Zhang
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2005 Volume 46 Issue 2 Pages 376-378

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Abstract

Glassy Pd85−xCuxSi10P5 (x=5–12 at%) alloys with a supercooled liquid region (ΔTx) of 51–73 K were synthesized despite the low metalloid content. The glassy Pd79Cu6Si10P5 alloy exhibits the largest ΔTx of 73 K in the present alloy system and its critical diameter for glass formation reaches 5 mm by copper mold casting. For the bulk glassy Pd79Cu6Si10P5 alloy, the Young’s modulus, compressive yield strength and maximum compressive strength are 82 GPa, 1475 MPa and 1575 MPa, respectively. Distinct compressive plastic strain of 3.5% and a vein pattern morphology on the fracture surface indicate the ductile nature of the bulk glassy Pd-Cu-Si-P alloy.

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© 2005 The Japan Institute of Metals and Materials
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