Tensile strength determination of heat treated austenitic stainless steel AISI 316L using (ABI)‎ method

الملخص EN

In this study, austenitic stainless steel AISI 316L has been selected to investigate the effect of aging time and temperature on tensile strength using (ABI) technique.

Heat treatment consisted of aging at temperature of 400 o C, 600 o C and 800 o C and socking time for 0.5, 1.5, 10, 24 and 72 hrs.

For microstructure examination, an optical microscope was used.

The results showed that with increasing the aging time at 400 o C and 600 o C the tensile strength will increase but this approach inverted at 800 o C.

These results could be attributed to some metallurgical transformation that occurs during heat treatment like changing in grain size, carbide and nitride precipitation along the grain boundaries, and secondary austenite.