Effect of trace niobium on the microstructure and properties of full-pearlite steel used in the high-strength hypereutectoid wire rods
The present study investigated the impact of 20–80 ppm Nb on the microstructure and properties of hypereutectoid pearlite steel. Remarkably, even trace amounts of Nb exhibited a favorable effect on the refinement of austenite grain. The addition of the Nb element resulted in a reduction of pearlite...
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Elsevier
2024-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424021501 |
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| author | Xiaokun Pan Jincheng Li Chaolei Zhang Xinping Mao Wenjun Wang Shuize Wang Guilin Wu Junheng Gao Honghui Wu Haitao Zhao |
| author_facet | Xiaokun Pan Jincheng Li Chaolei Zhang Xinping Mao Wenjun Wang Shuize Wang Guilin Wu Junheng Gao Honghui Wu Haitao Zhao |
| author_sort | Xiaokun Pan |
| collection | DOAJ |
| description | The present study investigated the impact of 20–80 ppm Nb on the microstructure and properties of hypereutectoid pearlite steel. Remarkably, even trace amounts of Nb exhibited a favorable effect on the refinement of austenite grain. The addition of the Nb element resulted in a reduction of pearlite transition temperature, leading to a decrease of approximately 13% in lamellar spacing and 11% in the size of pearlite colonies. Furthermore, the dragging effect of the Nb element on the carbon atoms in hypereutectoid steel facilitated the control and refinement of network carbides. These findings offer valuable theoretical guidance for the production of ultra-high-strength wire rods. When the Nb content reached 80 ppm, it promoted the precipitation of (Ti, V)C, while simultaneously improving the morphology of square carbides. The grain refining strengthening mechanism accounted for about 70% of the overall strengthening effect observed in high carbon wire rods, with the influence of the Nb element primarily targeting grain refinement. Consequently, the incorporation of minute quantities of Nb presents a promising avenue for the development of ultra-high-strength hypereutectoid wire rods, offering significant potential for enhancing their strength properties. |
| format | Article |
| id | doaj-art-f20a8b73d5c94b37a38a587338c788f1 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-f20a8b73d5c94b37a38a587338c788f12024-12-26T08:53:51ZengElsevierJournal of Materials Research and Technology2238-78542024-11-0133954964Effect of trace niobium on the microstructure and properties of full-pearlite steel used in the high-strength hypereutectoid wire rodsXiaokun Pan0Jincheng Li1Chaolei Zhang2Xinping Mao3Wenjun Wang4Shuize Wang5Guilin Wu6Junheng Gao7Honghui Wu8Haitao Zhao9Institute for Carbon Neutrality, University of Science and Technology Beijing, Beijing, 100083, PR China; Institute of Steel Sustainable Technology, Liaoning Academy of Materials, Shenyang, 110167, Liaoning, PR ChinaInstitute for Carbon Neutrality, University of Science and Technology Beijing, Beijing, 100083, PR China; School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, PR ChinaInstitute for Carbon Neutrality, University of Science and Technology Beijing, Beijing, 100083, PR China; Institute of Steel Sustainable Technology, Liaoning Academy of Materials, Shenyang, 110167, Liaoning, PR China; Corresponding author. University of Science and Technology Beijing, Xueyuan Road No. 30, Haidian District, Beijing, PR China.Institute for Carbon Neutrality, University of Science and Technology Beijing, Beijing, 100083, PR China; Institute of Steel Sustainable Technology, Liaoning Academy of Materials, Shenyang, 110167, Liaoning, PR ChinaCITIC-CBMM Microalloying Technology Center, CITIC Metal Co., Ltd, Beijing, 100004, PR ChinaInstitute for Carbon Neutrality, University of Science and Technology Beijing, Beijing, 100083, PR China; Institute of Steel Sustainable Technology, Liaoning Academy of Materials, Shenyang, 110167, Liaoning, PR ChinaInstitute for Carbon Neutrality, University of Science and Technology Beijing, Beijing, 100083, PR China; Institute of Steel Sustainable Technology, Liaoning Academy of Materials, Shenyang, 110167, Liaoning, PR ChinaInstitute for Carbon Neutrality, University of Science and Technology Beijing, Beijing, 100083, PR China; Institute of Steel Sustainable Technology, Liaoning Academy of Materials, Shenyang, 110167, Liaoning, PR ChinaInstitute for Carbon Neutrality, University of Science and Technology Beijing, Beijing, 100083, PR China; Institute of Steel Sustainable Technology, Liaoning Academy of Materials, Shenyang, 110167, Liaoning, PR ChinaInstitute for Carbon Neutrality, University of Science and Technology Beijing, Beijing, 100083, PR China; Institute of Steel Sustainable Technology, Liaoning Academy of Materials, Shenyang, 110167, Liaoning, PR ChinaThe present study investigated the impact of 20–80 ppm Nb on the microstructure and properties of hypereutectoid pearlite steel. Remarkably, even trace amounts of Nb exhibited a favorable effect on the refinement of austenite grain. The addition of the Nb element resulted in a reduction of pearlite transition temperature, leading to a decrease of approximately 13% in lamellar spacing and 11% in the size of pearlite colonies. Furthermore, the dragging effect of the Nb element on the carbon atoms in hypereutectoid steel facilitated the control and refinement of network carbides. These findings offer valuable theoretical guidance for the production of ultra-high-strength wire rods. When the Nb content reached 80 ppm, it promoted the precipitation of (Ti, V)C, while simultaneously improving the morphology of square carbides. The grain refining strengthening mechanism accounted for about 70% of the overall strengthening effect observed in high carbon wire rods, with the influence of the Nb element primarily targeting grain refinement. Consequently, the incorporation of minute quantities of Nb presents a promising avenue for the development of ultra-high-strength hypereutectoid wire rods, offering significant potential for enhancing their strength properties.http://www.sciencedirect.com/science/article/pii/S2238785424021501PearliteNiobium microalloyingWire rodHypereutectoid steelStrengthening mechanism |
| spellingShingle | Xiaokun Pan Jincheng Li Chaolei Zhang Xinping Mao Wenjun Wang Shuize Wang Guilin Wu Junheng Gao Honghui Wu Haitao Zhao Effect of trace niobium on the microstructure and properties of full-pearlite steel used in the high-strength hypereutectoid wire rods Journal of Materials Research and Technology Pearlite Niobium microalloying Wire rod Hypereutectoid steel Strengthening mechanism |
| title | Effect of trace niobium on the microstructure and properties of full-pearlite steel used in the high-strength hypereutectoid wire rods |
| title_full | Effect of trace niobium on the microstructure and properties of full-pearlite steel used in the high-strength hypereutectoid wire rods |
| title_fullStr | Effect of trace niobium on the microstructure and properties of full-pearlite steel used in the high-strength hypereutectoid wire rods |
| title_full_unstemmed | Effect of trace niobium on the microstructure and properties of full-pearlite steel used in the high-strength hypereutectoid wire rods |
| title_short | Effect of trace niobium on the microstructure and properties of full-pearlite steel used in the high-strength hypereutectoid wire rods |
| title_sort | effect of trace niobium on the microstructure and properties of full pearlite steel used in the high strength hypereutectoid wire rods |
| topic | Pearlite Niobium microalloying Wire rod Hypereutectoid steel Strengthening mechanism |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424021501 |
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