Effect of quench severity and hardness of aluminium 2585 alloyusing eco friendly quenchants

Abstract

Rate of cooling, hardness and severity during quenching of various media viz; cow urine, distilled water, tap water, engine oil (unused) SAE40 soap nut solution, shikakai nut solution for industrial heat treatment was investigated using 2585 Al alloy. For all media, nucleate boiling and convective heat transfer are being carried out and out of which maximum and minimum cooling rates are observed for cow urine. From the study it has been observed that cow urine, tap water and distilled water, cow urine has high heat transfer coefficient 6.577 W/m2 K, whereas Engine oil, Shikakai nut solution, Soap nut solution are considered Soap nut solution has high heat transfer coefficient 3.654 W/m2 K. For all the quenchants, the hardness of Al 2585 alloy increased cow urine.