|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Mechanical and Creep Behavior of Advanced Materials: A SMD Symposium Honoring Prof. K. Linga Murty
||L-116: In Situ Investigation on the Micromechanical Behavior of the CuZr-based BMGC by Neutron Diffraction
||Dongmei Wang, Ke An, Juan Mu, Yan Chen, Yandong Wang, Haijian Xu
|On-Site Speaker (Planned)
The micromechanical behavior of CuZr-based Bulk Metallic Glass Composite (BMGC) was investigated by in-situ neutron diffraction technique through three loading-unloading stages with different stress maxima. An inconspicuous martensite peak is observed throughout the 2nd cycle but the remarkable martensitic transformation takes place at a strain of ~-2.2% in the 3rd cycle. The critical stress for the martensitic transformation cannot be determined considering the effect of the residual stress. The pseudoelastic behavior is associated with the martensitic transformation and the work hardening rate is attributed to the different deformation modes of the B2 and amorphous phase. The higher fracture strength and limited total strain are determined by the volume fraction of the amorphous and B2 phase. The interphase and intergranular stress redistribution contribute to the macro-mechanical properties.
||Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)