Toughening Mechanism of Zr-Based and Cu-Based Bulk Metallic Glasses Composites by TiNb Particle
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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.
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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.] DOI：[doi]