TY - GEN
T1 - Effect of tin on the microstructures and mechanical properties of a Au-Pt-Cu alloy
AU - Kim, M. H.
AU - Lee, S. H.
AU - Lim, H. N.
AU - Doh, J. M.
AU - Baik, H. G.
PY - 2006
Y1 - 2006
N2 - The purpose of this study is to investigate the effect of small Sn additions on the microstructures and the mechanical properties of the Au-Pt-Cu alloys. The hardness of the Au-Pt-Cu-xSn alloys rapidly increased with increasing aging time at 600°C until it reached an almost constant value at aging time of 30min. In addition, the hardness of the Au-Pt-Cu-xSn (x = 0,0.1,0.3, 0.5, 1.0) alloys aged at 600°C for 30 min, rapidly increased with increasing Sn content and reached a maximum hardness at 0.5wt%, but it slightly decreased with more increasing in Sn content. This is ascribed to wide dispersion of large Pt3Sn precipitate, which is softer than matrix composed of Au-Pt-Cu-Sn solid solution. The grain size of the Au-Pt-Cu-xSn alloys decreased with increasing Sn content irrespective of the heat- and aging-treatments, but the grain size of the aged alloys was finer than that of solution treated alloys.
AB - The purpose of this study is to investigate the effect of small Sn additions on the microstructures and the mechanical properties of the Au-Pt-Cu alloys. The hardness of the Au-Pt-Cu-xSn alloys rapidly increased with increasing aging time at 600°C until it reached an almost constant value at aging time of 30min. In addition, the hardness of the Au-Pt-Cu-xSn (x = 0,0.1,0.3, 0.5, 1.0) alloys aged at 600°C for 30 min, rapidly increased with increasing Sn content and reached a maximum hardness at 0.5wt%, but it slightly decreased with more increasing in Sn content. This is ascribed to wide dispersion of large Pt3Sn precipitate, which is softer than matrix composed of Au-Pt-Cu-Sn solid solution. The grain size of the Au-Pt-Cu-xSn alloys decreased with increasing Sn content irrespective of the heat- and aging-treatments, but the grain size of the aged alloys was finer than that of solution treated alloys.
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U2 - 10.4028/0-87849-995-4.278
DO - 10.4028/0-87849-995-4.278
M3 - Conference contribution
AN - SCOPUS:35748985294
SN - 0878499954
SN - 9780878499953
T3 - Materials Science Forum
SP - 278
EP - 281
BT - Eco-Materials Processing and Design VII - Proceedings of the Conference of the 7th International Symposium on Eco-Materials Processing and Design, ISEPD-7
PB - Trans Tech Publications Ltd
T2 - 7th International Symposium on Eco-Materials Processing and Design, ISEPD-7
Y2 - 8 January 2006 through 11 January 2006
ER -