Effects of Minor Si Addition on Glass Formation and Thermal Stability of Ni Free Ti-Based Bulk Metallic Glass

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The effects of small amounts of Si on the glass-forming ability, thermal stability and mechanical property of a TiZrCuPdSn bulk metallic glass were investigated. The addition of Si caused the decrease of glass-forming ability and the increase of the supercooled liquid (SCL) region. With 2 at.% Si addition, a significant SCL region of 80 K was obtained, which indicated high thermal stability of the glassy alloy and was in favor of secondary working by viscous flow deformation. With increasing Si content, the plasticity decreased.

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36-39

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March 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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