The microstructure and hardness of a 2024 aluminum alloy subjected to multi-pass upsetting extrusion at ambient temperature were studied. Experimental results i
A friction stirring welding to joint 5 mm rolled AZ31 magnesium had been developed. The microstructures in various regions including the weld nugget, thermo-mec
The characteristics of mc-Si used for solar cells during H2 ambient annealing at 800-1200 ℃ were investigated by means of FTIR and QSSPCD. The results reveal t