Effect of Trace Rare-Earth Element Ce on the Microstructure and Properties of Cold-Rolled Medium Manganese Steel
Rare-earth elements have been widely used in the field of functional materials, but their effects on the cold-stamping formability of high-strength automotive steels have rarely been studied. In this paper, the effect of the trace rare-earth element Ce on the microstructure and properties of cold-ro...
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MDPI AG
2023-01-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/1/116 |
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| author | Qingbo Zhao Ruifeng Dong Yongfa Lu Yang Yang Yanru Wang Xiong Yang |
| author_facet | Qingbo Zhao Ruifeng Dong Yongfa Lu Yang Yang Yanru Wang Xiong Yang |
| author_sort | Qingbo Zhao |
| collection | DOAJ |
| description | Rare-earth elements have been widely used in the field of functional materials, but their effects on the cold-stamping formability of high-strength automotive steels have rarely been studied. In this paper, the effect of the trace rare-earth element Ce on the microstructure and properties of cold-rolled medium manganese steel after ART (austenite-reverted transformation, ART) annealing was studied. The microstructure of the experimental steel was observed using SEM, and the mechanical properties were tested using a universal tensile testing machine. The volume fraction of the retained austenite and the texture of the steel were measured using XRD. The results showed that the original austenite grain size of the experimental steel was smaller after adding the trace rare-earth element Ce. After ART annealing, the grain size distribution of the experimental steel with rare-earth Ce was more uniform, and the comprehensive mechanical properties were better. Under the conditions of quenching at 800 °C for 5 min and annealing at 645 °C for 15 min, the maximum product of tensile strength and elongation was 28.47 GPa·%. |
| first_indexed | 2024-03-09T11:41:48Z |
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| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T11:41:48Z |
| publishDate | 2023-01-01 |
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| spelling | doaj.art-ba1d2f358e854210b8b47d7a4d3fdccb2023-11-30T23:30:56ZengMDPI AGMetals2075-47012023-01-0113111610.3390/met13010116Effect of Trace Rare-Earth Element Ce on the Microstructure and Properties of Cold-Rolled Medium Manganese SteelQingbo Zhao0Ruifeng Dong1Yongfa Lu2Yang Yang3Yanru Wang4Xiong Yang5School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaSchool of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaSchool of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaSchool of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaSchool of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaTechnical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, ChinaRare-earth elements have been widely used in the field of functional materials, but their effects on the cold-stamping formability of high-strength automotive steels have rarely been studied. In this paper, the effect of the trace rare-earth element Ce on the microstructure and properties of cold-rolled medium manganese steel after ART (austenite-reverted transformation, ART) annealing was studied. The microstructure of the experimental steel was observed using SEM, and the mechanical properties were tested using a universal tensile testing machine. The volume fraction of the retained austenite and the texture of the steel were measured using XRD. The results showed that the original austenite grain size of the experimental steel was smaller after adding the trace rare-earth element Ce. After ART annealing, the grain size distribution of the experimental steel with rare-earth Ce was more uniform, and the comprehensive mechanical properties were better. Under the conditions of quenching at 800 °C for 5 min and annealing at 645 °C for 15 min, the maximum product of tensile strength and elongation was 28.47 GPa·%.https://www.mdpi.com/2075-4701/13/1/116trace rare-earth elementcold-rolled medium manganese steeloriginal austenitemicrostructureproperties |
| spellingShingle | Qingbo Zhao Ruifeng Dong Yongfa Lu Yang Yang Yanru Wang Xiong Yang Effect of Trace Rare-Earth Element Ce on the Microstructure and Properties of Cold-Rolled Medium Manganese Steel Metals trace rare-earth element cold-rolled medium manganese steel original austenite microstructure properties |
| title | Effect of Trace Rare-Earth Element Ce on the Microstructure and Properties of Cold-Rolled Medium Manganese Steel |
| title_full | Effect of Trace Rare-Earth Element Ce on the Microstructure and Properties of Cold-Rolled Medium Manganese Steel |
| title_fullStr | Effect of Trace Rare-Earth Element Ce on the Microstructure and Properties of Cold-Rolled Medium Manganese Steel |
| title_full_unstemmed | Effect of Trace Rare-Earth Element Ce on the Microstructure and Properties of Cold-Rolled Medium Manganese Steel |
| title_short | Effect of Trace Rare-Earth Element Ce on the Microstructure and Properties of Cold-Rolled Medium Manganese Steel |
| title_sort | effect of trace rare earth element ce on the microstructure and properties of cold rolled medium manganese steel |
| topic | trace rare-earth element cold-rolled medium manganese steel original austenite microstructure properties |
| url | https://www.mdpi.com/2075-4701/13/1/116 |
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