Investigations on the Plastic Instability in an HCP Mg-Li Alloy | Zendy

Chao Wang | Zendy; Yong Xu | Zendy; En–Hou Han | Zendy

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Investigations on the Plastic Instability in an HCP Mg-Li Alloy

Author(s) -

Chao Wang,

Yong Xu,

En–Hou Han

Publication year - 2012

Publication title -

journal of metallurgy

Language(s) - English

Resource type - Journals

eISSN - 1687-9473

pISSN - 1687-9465

DOI - 10.1155/2012/674573

Subject(s) - instability , serration , materials science , plasticity , alloy , dynamic strain aging , annealing (glass) , ultimate tensile strength , strain (injury) , composite material , metallurgy , mechanics , physics , medicine

Plastic instability is reported in hexagonal close-packed (HCP) LA41 magnesium alloy during tensile tests. Serration amplitude associated with plastic instability is measured to increase with increasing strain and decrease with increasing strain rate. The model of dynamic strain aging (DSA) is proposed to be the controlling mechanism. Moreover, it is reported that annealing could reduce the flow instability, which has potential practical applications

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