Effect of B2 Phase Transformation on the Mechanical Behavior of CuZr-Based Bulk Metallic Glass Composites

Abstract:

The mechanical behavior of CuZr-based bulk metallic glass composites with different B2-CuZr phase transformation ability was investigated. The B2 phase transformation is conducive to enhance the mechanical properties of CuZr-based bulk metallic glass composites. The mechanical properties of the austenitic B2 phase specimens were also studied to understand the mechanism of phase transformation effect. It was found that the B2 phase with martensitic transformation exhibits lower yield strength and stronger work-hardening capability than the B2 phase without martensitic transformation. Thus, the phase transformation effect of B2-CuZr phase, accompanying with its lower yield strength and stronger work-hardening capability, is the main reason for the CuZr-based bulk metallic glass composites possess outstanding mechanical properties.

• Periodical: Materials Science Forum (Volume 898)
• Pages: 672-678
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.898.672
• Online since: June 2017
• Authors: Ran Wei, Juan Tao, Shi Lei Liu, Guo Wen Sun, Shuai Guo, Fu Shan Li*
• Keywords: B2 Phase, Bulk Metallic Glass Composites, Martensitic Transformation, Mechanical Properties

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