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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.46  No.7 (2005)  >  pp.1720-1724

MATERIALS TRANSACTIONS
<<Previous article Vol.46  No.7 (2005)   pp.1720 - 1724 Next article>>

New Pd-Based Bulk Glassy Alloys with High Glass-Forming Ability and Large Supercooled Liquid Region

Kana Takenaka1), Takeshi Wada1), Nobuyuki Nishiyama2), Hisamichi Kimura3) and Akihisa Inoue3)
1) Graduate School, Tohoku University
2) RIMCOF Tohoku Univ. Lab., R&D Institute of Metals and Composites for Future Industries
3) Institute for Materials Research, Tohoku University


With the aim of developing a new bulk glassy alloy which can be applied to biomedical applications, we examined glass-forming ability and mechanical properties of Ni-free glassy alloys in Pd50−xPtxCu30P20 system. As a result, the best glass-forming composition is located at Pd35Pt15Cu30P20, and the alloy can be formed into bulk glassy rods with diameters of up to at least 30 mm by fluxed water quenching. For the bulk glassy alloy, fracture strength, fracture elongation and Young’s modulus were measured to be 1590 MPa, 1.8% and 99.8 GPa, respectively, under a compressive stress and 1410 MPa, 1.7% and 83.0 GPa, respectively, under a tensile stress. These features of high glass-forming ability and good mechanical properties are expected to be used as biomedical materials.


Keyword:
biomedical application, Ni-allergy, high strength, low Young’s modulus

Received: April 04, 2005
Accepted: May 18, 2005 , Published online: October 18, 2005
Copyright (c) 2005 The Japan Institute of Metals

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