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Friction stir processing was applied to hot-rolled Mg–Zn–Y–Zr alloy to produce a fine-grained structure 4.5μm in size with fine, uniformly distributed Mg 3 Zn 3 Y 2 particles and predominant high-angle grain boundaries (HAGBs) of 91%. A maximum superplasticity of 1110% was achieved at a high strain rate of 1×10 −2 s −1 and 450°C. The superior superplasticity...
The magnesium alloys has been intensively studied for their suitable mechanical properties, excellent biocompatibility and their ability to biodegrade in biological environments. Although magnesium biodegradable implants possess many desirable properties, it is important that the alloy is able to be tolerated by the body- the constitutional elements of magnesium-based alloys should be toxic free....
Ni-Mo based "Hastelloy" alloys are structural materials for the accelerator-driven molten-salt reactor, in which they are subjected to intense radiation damage. This causes a complete alteration of the microstructure. Since atomic collisions are responsible for inducing, modifying and activating the kinetic processes which alter the microstructure, high energy electron or proton irradiation...
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