Project(12JCYBJC32100)supported by the Tianjin Research Program of Application Foundation and Advanced Technology,China;Project([2013]693)supported by the Scientific Research Foundation for the Returned Overseas Chinese Scholars,State Education Ministry,China
Creep and anelastic backflow behaviors of pure copper (4N Cu) with grain size dg=40 μm were investigated at low temperatures of T〈0.3Tm (Tm is melting point) and ultra-low creep rates of ε≤1×10^-10 s^-1 by a ...