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Effects of a minor addition of Si and/or Sn on formation and mechanical properties of Cu–Zr–Ti bulk metallic glass

✍ Scribed by T. Zhang; H. Men; S.J. Pang; J.Y. Fu; C.L. Ma; A. Inoue

Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
980 KB
Volume
449-451
Category
Article
ISSN
0921-5093

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✦ Synopsis

Effects of the addition of a small amount of Sn and/or Si on glass-forming ability and mechanical properties of Cu 50 Zr 42.5 Ti 7.5 (at.%) bulk metallic glass were studied. The critical diameter for glass formation is 5 mm for Cu 50 Zr 42.5 Ti 7.5 alloy, and increases to 6 mm for (Cu 0.5 Zr 0.425 Ti 0.075 ) 99 Sn 1 and (Cu 0.5 Zr 0.425 Ti 0.075 ) 99 Si 1 alloys and 7 mm for (Cu 0.5 Zr 0.425 Ti 0.075 ) 98.8 Sn 0.6 Si 0.6 . In uniaxial compression, (Cu 0.5 Zr 0.425 Ti 0.075 ) 99 Sn 1 and (Cu 0.5 Zr 0.425 Ti 0.075 ) 98.8 Sn 0.6 Si 0.6 bulk metallic glasses exhibit large plasticity of 8% and 5.3%, respectively, while the limited plasticity of 0.5% and 0.6% is obtained for Cu 50 Zr 42.5 Ti 7.5 and (Cu 0.5 Zr 0.425 Ti 0.075 ) 99 Si 1 bulk metallic glasses.

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