The hot deformation behavior and processing characteristics of AZ91 alloy and nano-SiCp/AZ91 composite were compared at temperature ranges of 523 K-673 K and strain rates of 0.001-1 s-1. Positive impact of SiC nanoparticles on pinning grain boundaries and inhibiting grain growth was not obvious when deformation temperature was below 623 K, but was remarkable when the temperature was above 623 K...

Hot rolling can improve the mechanical properties after heat treatment by improving microstructure. The effect of hot (HR) deformation on microstructural transformation G20CrNi2MoA bearing steel in subsequent CQT (carburizing-quenching and tempering) RQT (reheating-quenching processes was studied. results indicate that austenite grain size decreased 20% 45% reduction, number large-angle boundar...

Bulk Mn 52 Al 46 C 2 in ? -phase was prepared by vacuum induction melting and used as precursor for the production bulk permanent magnets suction casting hot-extrusion. Part of alloy mechanically milled into a powder samples electron beam melting, hot-compaction high pressure torsion processes. The microstructure magnetic properties all were investigated correlated. It found that mechanical def...

Titanium alloys exhibit mechanical and physical properties that fit structural applications demanding light-weight, corrosion resistance and biocompatibility. Ceramic reinforcements can further improve some of these mechanical properties, such as wear resistance, specific stiffness and specific strength. In comparison to continuous reinforced titanium alloys, the particle reinforced alloys (PRT...