Fe-Mn-Al-C Austenitic Steels Treated by Ca and Ce
Abstract
Phosphorous segregated at grain boundaries during solidification and heat treatment dramatically decreases low temperature toughness of precipitation hardened Fe-Mn-Al austenitic steel. Thermo-dynamical analysis was performed for evaluation of the possibility of decreasing Pgrain boundary segregation by Ce- and Ca-additives in the melt. It was shown that the predicted probability of P containing compound formation depends on melt composition and treatment sequence. Experimental heats were performed and the several micro-and macro-structural effects of Ce- and Ca-additives were recognized by using automated inclusion analyzer technique. Increasing low temperature toughness in austenitic steel by complex Ca-wire injection followed by Cemishmetal additions was achieved.
Recommended Citation
S. N. Lekakh et al., "Fe-Mn-Al-C Austenitic Steels Treated by Ca and Ce," TMS Symposium Proceedings, The Minerals, Metals & Materials Society (TMS), Jan 2010.
Meeting Name
2010 TMS Annual Meeting & Exhibition
Department(s)
Materials Science and Engineering
Research Center/Lab(s)
Peaslee Steel Manufacturing Research Center
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2010 The Minerals, Metals & Materials Society (TMS), All rights reserved.
Publication Date
01 Jan 2010
