| 轧制变形对 F-M 双相钢 0.05C-2.8Mn-4.2Ni-2Al- 1.2Mo-1.9Cu晶粒细化的影响 |
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| 引用本文： | 马才女,高雪云,呼陟宇,翟亭亭,李瑞红,王海燕,薛春江.轧制变形对 F-M 双相钢 0.05C-2.8Mn-4.2Ni-2Al- 1.2Mo-1.9Cu晶粒细化的影响[J].特殊钢,2022,43(3):91-94. |
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| 作者姓名： | 马才女 高雪云 呼陟宇 翟亭亭 李瑞红 王海燕 薛春江 |
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| 作者单位： | 1内蒙古科技大学材料与冶金学院，包头014010,
2内蒙古自治区新金属材料重点实验室，包头014010；
3内蒙古科技大学工程训练中心，包头014010 |
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| 摘 要： | 借助EBSD场发射扫描电子显微镜,研究了轧制变形及热处理后的铁素体/马氏体双相钢0.05C-2.8Mn4.2Ni-2Al-1.2Mo-1.9Cu显微组织演变及力学性能。结果表明,经900℃30%+780℃75%变形,500℃退火的F-M钢晶粒尺寸0.97μm,屈服、抗拉强度和延伸率分别为876 MPa,976 MPa和15.2%,经900℃30%+780℃50%变形,500℃退火的F-M钢晶粒尺寸1.54μm,屈服、抗拉强度和延伸率分别为801 MPa,895 MPa和19.4%。由轧制变形导致的晶粒细化、小角度晶界增多,是提高实验钢强度的主要原因。然而,较大的轧制变形量也使过多的小角度晶界阻碍位错运动,从而导致实验钢在塑性变形过程中,延展性略差。
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| 收稿时间： | 2021-11-18 |
Effect of Rolling Deformation on Grain Refinement of F-M Dual Phase Steel 0.05C-2.8Mn-4.2Ni-2Al-l. 2Mo-l. 9Cu |
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| MA Cainv,GAO Xueyun,HU Zhiyu,ZHAI Tingting,LI Ruihong,WANG Haiyan,XUE Chunjiang.Effect of Rolling Deformation on Grain Refinement of F-M Dual Phase Steel 0.05C-2.8Mn-4.2Ni-2Al-l. 2Mo-l. 9Cu[J].Special Steel,2022,43(3):91-94. |
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| Authors: | MA Cainv GAO Xueyun HU Zhiyu ZHAI Tingting LI Ruihong WANG Haiyan XUE Chunjiang |
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| Affiliation: | 1 School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010；
2 Inner Mongolia Autonomous Region Key Laboratory of Advanced Metal Materials, Baotou 014010；
3 Engineering Training Center, Inner Mongolia University of Science and Technology, Baotou 014010) |
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| Abstract: | By field emission scanning electron microscope equipped with an EBSD imaging system the structure and properties of ferritic/martensitic dual-phase steel 0. 05C-2. 8Mn-4. 2Ni-2AJ-l. 2Mo-l. 9Cu after rolling deformation and heat treatment are studied. The results show that by rolled with 900 °C. 30% +780 °C 75% deforming and 500 °C. annealed, of F- M steel the grain size 0.97μm, yield tensile strength and elongation are respectively 876 MPa, 976 MPa and 15.2% , and by rolled with 900 °C 30% +780 °C 50% deforming and 500 °C annealed, of F-M steel the grain size 1.54 μm, yield、 tensile strength and elongation are respectively 801 MPa,895 MPa and 19. 4%. Hie grain refinement and the increase of small-angle grain boundaries caused by rolling deformation are the main reasons for improving the strength of the experimental steel. However, the large rolling deformation also makes too many small-angle grain boundaries hinder the movement of dislocations, which leads to more difficult deformation arid slightly poorer ductility in the plastic deformation process of the experimental steel. |
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