Effect of Precipitation Hardening on Hardness and Microstructure of Austenitic Manganese Steel
Show more
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.
Keywords:
precipitation,
hardening,
ageing,
hardness,
microstructure,
carbide,
austenitized,
austenitic manganese steel.
Cite this paper:
S. Aribo, K. Alaneme, D. Folorunso and F. Aramide, "Effect of Precipitation Hardening on Hardness and Microstructure of Austenitic Manganese Steel," Journal of Minerals and Materials Characterization and Engineering, Vol. 9 No. 2, 2010, pp. 157-164. doi: 10.4236/jmmce.2010.92014.
References
[1] Aver, H. S., 1981, “Austenitic Manganese Steel: Metal Handbook”, 8th Edition
[2] Higgins, R. A., 1993, “Engineering Metallurgy Part 1: Applied Physical Metallurgy”, 6th Edition, ELBS, Cornwall, Page (s): 50-56, 190-215 and 230-235.
[3] Katella, R., 1994,”Austenitic Wear Resistant Steel and Method For Heat Treatment”, Patent Paper.
[4] Peter, N. W., 2004, “Hadfield’s Manganese Steel and its Performance under Increased Wheel Loads”, Presentation to the 83rd Transportation research Board Annual Meeting, Washington, DC, Page 33
[5] Vander-Voort, G. F., 1996 “Applied Metallographic”, VNB, New York. Page 20.