We present a new numerical model describing the transformation of powder crystalline particles into dense poly-crystalline material. It is based on key phenomena sintering: shrinkage and grain coarsening driven by minimization free energy. Representing each truncated sphere, takes account complex changing shape grains for determining thermodynamic driving forces associated kinetic coefficients....

a review on the microstructural evolution in magnesium alloys during severe plastic deformation waspresented. the challenges deserved to achieve ultrafine/ nanostructured magnesium were discussed.the characteristics of the processed materials are influenced by three main factors, including i)difficult processing at low temperatures, ii) high temperature processing and the occurrence ofdynamic r...