Effect of Hot Isostatic Pressing on Metallurgical Quality and Microstructure of Aluminum Alloy Castings
By comparing the changes in metallurgical quality and microstructure of aluminum alloy castings before and after hot isostatic pressing,the effect of hot isostatic pressing on the metallurgical quality and microstructure density of the aluminum alloy castings was studied.The results showed that after hot isostatic pressing treatment,micro shrinkage and porosity defects in castings were effectively repaired,making the microstructure of castings more dense and uniform.However,for severe sponge like and macroscopic porosity,hot isostatic pressing could not heal them.
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