✍ Scribed by T. Ryspaev; Z. Trojanová; O. Padalka; V. Wesling
No coin nor oath required. For personal study only.
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The deformation mechanisms and the thermal stability of AZ31 alloy, processed by various routes, have been investigated. Superplastic deformations could be achieved at flow stresses lower than 10 MPa at 375 • C and 10 -4 s -1 in the AZ31 alloy with a grain size of 17 m. The thermal stability of seve
An extruded ZK60 magnesium alloy was processed by equal-channel angular pressing (ECAP) and then tested in tension at elevated temperatures. The results show the alloy is superplastic at a testing temperature of 473 K with an optimum ductility of ∼1310% when using an initial strain rate of 2.0 × 10
The parametric dependencies for superplastic flow in powder metallurgy (PM) magnesium alloys and composites were characterized so as to elucidate the deformation mechanism. The mechanism was proposed to be slip accommodated grain boundary sliding. However, the PM alloys and composites were strengthe