Processing Variants in Medium-Mn Steels
This paper highlights some recent efforts to extend the use of medium-Mn steels for applications other than intercritically batch-annealed steels with exceptional ductility (and strengths in the range of about 1000 MPa). These steels are shown to enable a range of promising properties. In hot-stampi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-07-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/9/7/771 |
| _version_ | 1819267861361721344 |
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| author | John Speer Radhakanta Rana David Matlock Alexandra Glover Grant Thomas Emmanuel De Moor |
| author_facet | John Speer Radhakanta Rana David Matlock Alexandra Glover Grant Thomas Emmanuel De Moor |
| author_sort | John Speer |
| collection | DOAJ |
| description | This paper highlights some recent efforts to extend the use of medium-Mn steels for applications other than intercritically batch-annealed steels with exceptional ductility (and strengths in the range of about 1000 MPa). These steels are shown to enable a range of promising properties. In hot-stamping application concepts, elevated Mn concentration helps to stabilize austenite and to provide a range of attractive property combinations, and also reduces the processing temperatures and likely eliminates the need for press quenching. The “double soaking” concept also provides a wide range of attractive mechanical property combinations that may be applicable in cold-forming applications, and could be implemented in continuous annealing and/or continuous galvanizing processes where Zn-coating would typically represent an additional austempering step. Quenching and partitioning of steels with elevated Mn concentrations have exhibited very high strengths, with attractive tensile ductility; and medium-Mn steels have been successfully designed for quenching and partitioning using room temperature as the quench temperature, thereby effectively decoupling the quenching and partitioning steps. |
| first_indexed | 2024-12-23T21:23:54Z |
| format | Article |
| id | doaj.art-8a62ac96e9d84d8186c8320b2bbadc7d |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-12-23T21:23:54Z |
| publishDate | 2019-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-8a62ac96e9d84d8186c8320b2bbadc7d2022-12-21T17:30:40ZengMDPI AGMetals2075-47012019-07-019777110.3390/met9070771met9070771Processing Variants in Medium-Mn SteelsJohn Speer0Radhakanta Rana1David Matlock2Alexandra Glover3Grant Thomas4Emmanuel De Moor5Advanced Steel Processing and Products Research Center, Colorado School of Mines, Golden, CO 80401, USAAdvanced Steel Processing and Products Research Center, Colorado School of Mines, Golden, CO 80401, USAAdvanced Steel Processing and Products Research Center, Colorado School of Mines, Golden, CO 80401, USAAdvanced Steel Processing and Products Research Center, Colorado School of Mines, Golden, CO 80401, USAAK Steel, AK Steel Research and Innovation Center, 6180 Research Way, Middletown, OH 45005, USAAdvanced Steel Processing and Products Research Center, Colorado School of Mines, Golden, CO 80401, USAThis paper highlights some recent efforts to extend the use of medium-Mn steels for applications other than intercritically batch-annealed steels with exceptional ductility (and strengths in the range of about 1000 MPa). These steels are shown to enable a range of promising properties. In hot-stamping application concepts, elevated Mn concentration helps to stabilize austenite and to provide a range of attractive property combinations, and also reduces the processing temperatures and likely eliminates the need for press quenching. The “double soaking” concept also provides a wide range of attractive mechanical property combinations that may be applicable in cold-forming applications, and could be implemented in continuous annealing and/or continuous galvanizing processes where Zn-coating would typically represent an additional austempering step. Quenching and partitioning of steels with elevated Mn concentrations have exhibited very high strengths, with attractive tensile ductility; and medium-Mn steels have been successfully designed for quenching and partitioning using room temperature as the quench temperature, thereby effectively decoupling the quenching and partitioning steps.https://www.mdpi.com/2075-4701/9/7/771medium-Mn steelhot-stampingdouble soakingcontinuous annealingquenching and partitioninghigh strength steel |
| spellingShingle | John Speer Radhakanta Rana David Matlock Alexandra Glover Grant Thomas Emmanuel De Moor Processing Variants in Medium-Mn Steels Metals medium-Mn steel hot-stamping double soaking continuous annealing quenching and partitioning high strength steel |
| title | Processing Variants in Medium-Mn Steels |
| title_full | Processing Variants in Medium-Mn Steels |
| title_fullStr | Processing Variants in Medium-Mn Steels |
| title_full_unstemmed | Processing Variants in Medium-Mn Steels |
| title_short | Processing Variants in Medium-Mn Steels |
| title_sort | processing variants in medium mn steels |
| topic | medium-Mn steel hot-stamping double soaking continuous annealing quenching and partitioning high strength steel |
| url | https://www.mdpi.com/2075-4701/9/7/771 |
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