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Effect of Temperature on the Dynamic Mechanical Behaviors of Zr‐Based Metallic Glass Reinforced Porous Tungsten Matrix Composite
Author(s) -
Chen Chen,
Xue Yunfei,
Wang Lu,
Cheng Xingwang,
Wang Fuchi,
Wang Zhengbin,
Zhang Haifeng,
Wang Aiming
Publication year - 2012
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201100352
Subject(s) - materials science , composite material , tungsten , composite number , split hopkinson pressure bar , shearing (physics) , amorphous metal , ductility (earth science) , porosity , metal , phase (matter) , metallurgy , creep , strain rate , alloy , chemistry , organic chemistry
The dynamic mechanical behaviors of Zr‐based metallic glass reinforced porous tungsten matrix composite were investigated by a split Hopkinson pressure bar at different testing temperatures. The flow stress of the composite decreased, while the ductility increased with increasing testing temperature, which were attributed to that more microcracks were initiated in the tungsten phase as well as more microshear bands were induced in the metallic glass phase with increasing temperature. The failure mode of the composite is a mixture of shearing and axial splitting. The flow layer of the metallic glass phase in the shearing fracture surface at 473 K was longer and thinner than that at 223 K.