EFFECT OF ALUMINIZING ON THE TOUGHNESS OF LOW CARBON STEEL Dody Prayitno , Ammar Abyan Abdunnaafi
Mechanical Engineering, Faculty of Industrial Technology, Universitas Trisakti, Jakarta, Indonesia
Abstract
The aim of research is to know affect an aluminizing process on the toughness of low carbon steel. The methodology research was started by cutting the low carbon steel plate according to ASTM E23 standart into 16 pieces charpy samples. Then samples were grouped into 4 groups. the first group were initial samples . The second group were non preheated samples before aluminizining process The third and the fourth group were preheated (at 700 oC for 30 minutes ) samples before aluminising process. The second, the third and the fourth group were the aluminized at 700 0C while the immersing time were variated (ie 5 minutes for the second and the third group but 10 minutes for the fourth group). Finally the all groups were an impact tested using the charpy methode. The results show that the aluminizing process increases the toughness of low carbon steel from 1.825 joule to 2.5 joule. The preheating process before aluminizing increased sharply the toughness of low carbon steel from 1.825 joule to 4.775 joule. The increasing immersing time from 5 minutes to 10 minute in aluminizing process does not effect the toughness of low carbon steel.
Keywords: aluminizing process, low carbon steel plate, ASTM E23 standart
