Toughening Mechanism of Zr-Based and Cu-Based Bulk Metallic Glasses Composites by TiNb Particle

Home > Archive>Volume 42, Issue 6, 2013 >1154-1158

Toughening Mechanism of Zr-Based and Cu-Based Bulk Metallic Glasses Composites by TiNb Particle
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                        Chu ZhenhuaChu Zhenhua
National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiaotong University, Shanghai 200240, China
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Yuan GuangyinYuan Guangyin
National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiaotong University, Shanghai 200240, China
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Kato HidemiKato Hidemi
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
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Ding WenjiangDing Wenjiang
National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiaotong University, Shanghai 200240, China
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Abstract:

TiNb/Zr55Cu30Al10Ni5 and TiNb/Cu46Zr42Al7Y5 bulk metallic glass composites were prepared by Spark Plasma Sintering (SPS). The compression results show that TiNb/Zr55Cu30Al10Ni5 composites get larger plasticity than TiNb/Cu46Zr42Al7Y5 composites. The reason is that Zr55Cu30Al10Ni5 bulk metallic glass is resistant to micro-crack. The fracture toughness test proves that KC of Zr55Cu30Al10Ni5 is higher than that of Cu46Zr42Al7Y5, so there is a larger length scale of plastic process zone Rp for Zr55Cu30Al10Ni5.

Key words:spark plasma sintering (SPS); bulk metallic glass composites; compression mechanical property; fracture toughness

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[Chu Zhenhua, Yuan Guangyin, Kato Hidemi, Ding Wenjiang. Toughening Mechanism of Zr-Based and Cu-Based Bulk Metallic Glasses Composites by TiNb Particle[J]. Rare Metal Materials and Engineering,2013,42(6):1154~1158.]
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Received:June 10,2012
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