Abstract
The aim of present work is to analyse the effects of hot forging on slurry erosion behaviour of stainless steel SS420 experimentally. Samples of the material are heated at different temperatures ranging from 850°C to 950°C and after that the forging process is applied on the heated samples with the help of Birson Friction Screw Press Machine at constant strain rate 10s-1. The slurry erosion tests are conducted on the as-received and the hot forged samples with an impact velocity of slurry of 10 m/s and 10% slurry concentration (by weight). It is observed that the hardness of the hot forged samples increases with the process temperature and is more than that of the as- received sample. Slurry erosion resistance is found to be higher in the hot forged samples than the as-received sample. It is also seen that the slurry erosion resistance is maximum for hot forged Stainless steel SS420 at 950°C.
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