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Mechanical and Electrical Properties of Rapidly Solidified Cu-Zr-Ag Alloy Fabricated by Powder Rolling Process

Published online by Cambridge University Press:  09 March 2011

Satoru Miyakawa ,
Motonori Nishida ,
Nobuyuki Nishiyama ,
Haruko Miura  and
Akihisa Inoue
Satoru Miyakawa
Affiliation:
Fukuda Metal Foil and Powder Co., Ltd., Nishinoyama Nakatomicho 20, Kyoto 607-8305, Japan
Motonori Nishida
Affiliation:
Fukuda Metal Foil and Powder Co., Ltd., Nishinoyama Nakatomicho 20, Kyoto 607-8305, Japan
Nobuyuki Nishiyama
Affiliation:
RIMCOF Tohoku Univ. Lab., The Materials Process Technology Center, Katahira 2-1-1, Sendai 980-8577, Japan
Haruko Miura
Affiliation:
RIMCOF Tohoku Univ. Lab., The Materials Process Technology Center, Katahira 2-1-1, Sendai 980-8577, Japan
Akihisa Inoue
Affiliation:
Tohoku Univ., Katahira 2-1-1, Sendai 980-8577, Japan
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Abstract

A non-equilibrium Cu-Zr-Ag alloy was designed for the development of an alternative electric connector to Cu-Be alloys. This work aims at producing a Cu-Zr-Ag sheet using a hot-powder-rolling (HPR) process. The sheets were produced by a sequential process of HPR, pre-annealing, and cold rolling, using Cu93.5Zr5.5Ag1 (at.%) alloy powder produced by an argon gas atomization method. The Cu93.5Zr5.5Ag1 alloy sheet has a tensile strength of 1188 MPa and a conductivity of 33.2% IACS, which are similar values to those of Cu-Be alloys. In this paper, we optimize the conditions of the HPR process and reveal the correlation between the microstructure and properties of the Cu-Zr-Ag sheet produced by the HPR process. In addition, we discuss the alloy’s applicability for use as a connecter material.

Keywords

compositepowder metallurgyrapid solidification
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1300: Symposium U – Bulk Metallic Glasses and their Applications , 2011 , mrsf10-1300-u09-34
Copyright
Copyright © Materials Research Society 2011

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References

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