Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 46-49 |
| Number of pages | 4 |
| Journal | Journal of Alloys and Compounds |
| Volume | 628 |
| DOIs | |
| Publication status | Published - 2015 Apr 15 |
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All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry
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Schaeffler diagram for high Mn steels. / Lee, Sukjin; Lee, Chan Young; Lee, Young Kook.
In: Journal of Alloys and Compounds, Vol. 628, 15.04.2015, p. 46-49.Research output: Contribution to journal › Article
TY - JOUR
T1 - Schaeffler diagram for high Mn steels
AU - Lee, Sukjin
AU - Lee, Chan Young
AU - Lee, Young Kook
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.
UR - http://www.scopus.com/inward/record.url?scp=84920836930&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84920836930&partnerID=8YFLogxK
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 Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
ER -