Abstract
AbstractThis study aims to have the proper mechanical properties without applying any heat treatment process after hot forging by using 38MnVS6 micro alloyed steel in tow hook manufacturing which is used in automobiles. The effect of forging temperature and cooling rate on metallurgical and mechanical properties of micro alloyed steel is investigated. The samples of micro alloyed steel are forged at 800 °C, 850 °C, 900 °C, 1050 °C and cooled down at the rates of 0.75 °C/s and 1.5 °C/s. The forging temperature and the cooling rate have a significant effect on toughness by the experimental and numerical studies. The amount of ferrite increases with a decreasing forging temperature, and the toughness is improved by increasing the amount of ferrite. Also, by increasing the cooling rate after forging at 1050 °C, the acicular ferrite is observed which has a positive effect on both the toughness and strength of the micro alloyed steel.
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