TITLE:
Effect of Precipitation Hardening on Hardness and Microstructure of Austenitic Manganese Steel
AUTHORS:
S. Aribo, K.K. Alaneme, D.O. Folorunso, F.O. Aramide
KEYWORDS:
precipitation, hardening, ageing, hardness, microstructure, carbide, austenitized, austenitic manganese steel.
JOURNAL NAME:
Journal of Minerals and Materials Characterization and Engineering,
Vol.9 No.2,
February
20,
2010
ABSTRACT: The effect of precipitation hardening on microstructure and hardness of Austenitic Manganese
Steel has been studied. Samples of the steel were machined, autenitized at 1000℃ and held for
one hour, water quenched and then aged at different temperatures and holding times. The
samples were artificially aged at 600℃ and 700℃ and were held for one, two and three hours.
Microstructures and hardness values of the samples were taken. It was found out that sample
aged at 700℃ for 2 hours has its carbide particles finely dispersed on the austenite matrix. This
led to an increase in the hardness.