Microstructure and mechanical properties of solid-state recycled H11 steels after annealing
To solve the poor toughness problem of the solid-state recycled H11 steels prepared by pressing and extrusion forging using the turning chip powders in different particle size, the influence of the isothermal spherodizing annealing process on the microstructure and mechanical properties of the steel...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Powder Metallurgy Technology
2024-12-01
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| Series: | Fenmo yejin jishu |
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| Online Access: | https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2021120010 |
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| author | LIU Xinggang LI Junpeng MA Zhaojun ZHANG Deliang |
| author_facet | LIU Xinggang LI Junpeng MA Zhaojun ZHANG Deliang |
| author_sort | LIU Xinggang |
| collection | DOAJ |
| description | To solve the poor toughness problem of the solid-state recycled H11 steels prepared by pressing and extrusion forging using the turning chip powders in different particle size, the influence of the isothermal spherodizing annealing process on the microstructure and mechanical properties of the steels was studied, and the microstructure, phase composition, and mechanical properties of the steels were characterized. The optimum isothermal spheroidizing annealing process is as follows: the temperature is rised from room temperature to 880 ℃ at the rate of 10°/min, holding for 3 h, and furnace cooling to 750 ℃, holding for 4 h, and then furnace cooling to 550 ℃, air cooling. In the results, the microstructure of the experimental steels is composed of the spherical pearlite and the dispersed granular carbide. The plasticity is improved, the elongation increases from 3.4% to 12.8%, but the tensile strength and hardness decrease. The particle size of the turning chip powders affects the strength and toughness of the solid-state recycled H11 steels after the high temperature extrusion forging. The smaller the particle size is, the worse the strength and toughness are, because of the serious oxidation after the high temperature extrusion forging. |
| format | Article |
| id | doaj-art-4fba962afebe49fd9d899636ececee65 |
| institution | OA Journals |
| issn | 1001-3784 |
| language | zho |
| publishDate | 2024-12-01 |
| publisher | Editorial Office of Powder Metallurgy Technology |
| record_format | Article |
| series | Fenmo yejin jishu |
| spelling | doaj-art-4fba962afebe49fd9d899636ececee652025-08-20T01:58:15ZzhoEditorial Office of Powder Metallurgy TechnologyFenmo yejin jishu1001-37842024-12-0142655656210.19591/j.cnki.cn11-1974/tf.2021120010Microstructure and mechanical properties of solid-state recycled H11 steels after annealingLIU Xinggang0LI Junpeng1MA Zhaojun2ZHANG Deliang3School of Materials Science and Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Materials Science and Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Materials Science and Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Materials Science and Engineering, Northeastern University, Shenyang 110819, ChinaTo solve the poor toughness problem of the solid-state recycled H11 steels prepared by pressing and extrusion forging using the turning chip powders in different particle size, the influence of the isothermal spherodizing annealing process on the microstructure and mechanical properties of the steels was studied, and the microstructure, phase composition, and mechanical properties of the steels were characterized. The optimum isothermal spheroidizing annealing process is as follows: the temperature is rised from room temperature to 880 ℃ at the rate of 10°/min, holding for 3 h, and furnace cooling to 750 ℃, holding for 4 h, and then furnace cooling to 550 ℃, air cooling. In the results, the microstructure of the experimental steels is composed of the spherical pearlite and the dispersed granular carbide. The plasticity is improved, the elongation increases from 3.4% to 12.8%, but the tensile strength and hardness decrease. The particle size of the turning chip powders affects the strength and toughness of the solid-state recycled H11 steels after the high temperature extrusion forging. The smaller the particle size is, the worse the strength and toughness are, because of the serious oxidation after the high temperature extrusion forging.https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2021120010die steelsturning chipsisothermal spheroidizing annealingpowder sizemicrostructuremechanical properties |
| spellingShingle | LIU Xinggang LI Junpeng MA Zhaojun ZHANG Deliang Microstructure and mechanical properties of solid-state recycled H11 steels after annealing Fenmo yejin jishu die steels turning chips isothermal spheroidizing annealing powder size microstructure mechanical properties |
| title | Microstructure and mechanical properties of solid-state recycled H11 steels after annealing |
| title_full | Microstructure and mechanical properties of solid-state recycled H11 steels after annealing |
| title_fullStr | Microstructure and mechanical properties of solid-state recycled H11 steels after annealing |
| title_full_unstemmed | Microstructure and mechanical properties of solid-state recycled H11 steels after annealing |
| title_short | Microstructure and mechanical properties of solid-state recycled H11 steels after annealing |
| title_sort | microstructure and mechanical properties of solid state recycled h11 steels after annealing |
| topic | die steels turning chips isothermal spheroidizing annealing powder size microstructure mechanical properties |
| url | https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2021120010 |
| work_keys_str_mv | AT liuxinggang microstructureandmechanicalpropertiesofsolidstaterecycledh11steelsafterannealing AT lijunpeng microstructureandmechanicalpropertiesofsolidstaterecycledh11steelsafterannealing AT mazhaojun microstructureandmechanicalpropertiesofsolidstaterecycledh11steelsafterannealing AT zhangdeliang microstructureandmechanicalpropertiesofsolidstaterecycledh11steelsafterannealing |