TY - JOUR
T1 - Schaeffler diagram for high Mn steels
AU - Lee, Sukjin
AU - Lee, Chan Young
AU - Lee, Young Kook
N1 - Publisher Copyright:
© 2014 Elsevier B.V. All rights reserved.
Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
PY - 2015/4/15
Y1 - 2015/4/15
N2 - The microstructures of 50 high Mn steels, which were annealed at approximately 1000 °C and then water quenched, were predicted using the original Schaeffler diagram, the modified Schaeffler diagram with shifted phase boundaries, and equations for Cr and Ni equivalents. Although the modified Schaeffler diagram showed better microstructural predictions compared with the original Schaeffler diagram, it still had a lack of accuracy in microstructural prediction, particularly single austenite, austenite + ferrite, and austenite + ferrite + martensite microstructures. However, the adjustment of the Al coefficient for the Cr equivalent greatly improved the accuracy of microstructural prediction. As a result, the modified Schaeffler diagram, which was plotted with the Cr equivalent, calculated with a new coefficient of Al (3.5), exhibited the best prediction of the microstructures of high Mn steels, except for a few alloys with ε-martensite.
AB - The microstructures of 50 high Mn steels, which were annealed at approximately 1000 °C and then water quenched, were predicted using the original Schaeffler diagram, the modified Schaeffler diagram with shifted phase boundaries, and equations for Cr and Ni equivalents. Although the modified Schaeffler diagram showed better microstructural predictions compared with the original Schaeffler diagram, it still had a lack of accuracy in microstructural prediction, particularly single austenite, austenite + ferrite, and austenite + ferrite + martensite microstructures. However, the adjustment of the Al coefficient for the Cr equivalent greatly improved the accuracy of microstructural prediction. As a result, the modified Schaeffler diagram, which was plotted with the Cr equivalent, calculated with a new coefficient of Al (3.5), exhibited the best prediction of the microstructures of high Mn steels, except for a few alloys with ε-martensite.
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U2 - 10.1016/j.jallcom.2014.12.134
DO - 10.1016/j.jallcom.2014.12.134
M3 - Article
AN - SCOPUS:84920836930
VL - 628
SP - 46
EP - 49
JO - Journal of the Less-Common Metals
JF - Journal of the Less-Common Metals
SN - 0925-8388
ER -