@thesis{thesis,
		author={Nurrohman  Ali},
		title ={PENGARUH AGE HARDENING TERHADAP SIFAT MEKANIK 
MATERIAL ALUMINIUM 2024 T3 SETELAH DILAKUKAN 
PENGELASAN MENGGUNAKAN METODE FRICTION STIR 
WELDING},
		year={2021},
		url={http://eprints.stta.ac.id/2297/},
		abstract={Aluminum 2024 T3 is a difficult material for fusion welding. Therefore, the 
method used for welding aluminum is friction stir welding. The weakness of the 
friction stir welding process is the decrease in the tensile strength of the welding 
results compared to the tensile strength of the base metal. To increase the tensile 
strength of the welding results, an age hardening process is carried out on the 
specimens, which are 3 (three) stages in the age hardening process. The age 
hardening process starts with solution treatment then quenching and finally 
artificial aging.
The solution treatment process is heated at a temperature of 500
oC with a 
holding time of 1 hour and cooled rapidly using water to room temperature. Then 
proceed with the artificial aging process, namely reheating at temperature 
variations of 145oC, 150
oC, and 165oC with a holding time of 6 hours. The results 
obtained showed an increase in the maximum tensile strength, yield strength, 
maximum ultimate strain, and modulus of elasticity in the specimens after the age 
hardening process. The highest tensile strength, yield strength, and modulus of 
elasticity were at the artificial aging temperature of 155
oC. And the highest 
maximum ultimate strain is at the artificial aging temperature of 145oC.}
		}