| FeCoCrNiMn高熵合金大形变冷轧板再结晶退火过程中的组织演变 |
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| 引用本文： | 国春艳,刘玉宝,杨鹏飞,李园,吕卫东,高日增,张洋,侯复生.FeCoCrNiMn高熵合金大形变冷轧板再结晶退火过程中的组织演变[J].金属热处理,2022,47(7):163-167. |
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| 作者姓名： | 国春艳 刘玉宝 杨鹏飞 李园 吕卫东 高日增 张洋 侯复生 |
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| 作者单位： | 1.包头铁道职业技术学院 机械与电气系, 内蒙古 包头 014000;2.包头稀土研究院 白云鄂博稀土资源研究与综合利用国家重点实验室, 内蒙古 包头 014030 |
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| 基金项目： | 内蒙古自治区重大专项(ZDZX2018032) |
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| 摘 要： | 采用X射线衍射仪(XRD)、维氏硬度计、光学显微镜和电子背散射衍射(EBSD)研究了FeCoCrNiMn高熵合金经压下率为95%的大形变冷轧和550~800 ℃退火1 h后的晶体结构(fcc)、硬度变化、组织演变和再结晶行为。结果表明,冷轧-退火过程中FeCoCrNiMn高熵合金的晶体结构始终保持面心立方结构,再结晶开始温度为600 ℃,结束温度为750 ℃,随着退火温度的升高,试样的硬度先下降后逐渐趋于平缓,组织由纤维状的形变晶粒逐渐全部变为随机取向的再结晶晶粒。
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| 关 键 词： | FeCoCrNiMn高熵合金 大形变冷轧 退火 晶体结构 组织演变 |
| 收稿时间： | 2022-01-30 |
Recrystallizing annealed microstructure evolution of severe cold rolled FeCoCrNiMn high entropy alloy |
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| Guo Chunyan,Liu Yubao,Yang Pengfei,Li Yuan,Lü Weidong,Gao Rizeng,Zhang Yang,Hou Fusheng.Recrystallizing annealed microstructure evolution of severe cold rolled FeCoCrNiMn high entropy alloy[J].Heat Treatment of Metals,2022,47(7):163-167. |
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| Authors: | Guo Chunyan Liu Yubao Yang Pengfei Li Yuan Lü Weidong Gao Rizeng Zhang Yang Hou Fusheng |
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| Affiliation: | 1. Department of Mechanical and Electrical Engineering, Baotou Railway Vocational and Technical College, Baotou Inner Mongolia 014000, China;2. State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization, Baotou Research Institute of Rare Earths, Baotou Inner Mongolia 014030, China |
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| Abstract: | Crystal structure, hardness, microstructure evolution and recrystallization behavior of the FeCoCrNiMn high-entropy alloy after severe cold rolling with reduction ratio of 95% and then annealing at 550-800 ℃ for 1 h were studied by means of X-ray diffractometer (XRD), Vickers hardness tester, optical microscope and electron backscatter diffraction (EBSD). The results show that the crystal structure of the FeCoCrNiMn high-entropy alloy always maintains an fcc structure during the cold rolling-annealing process. The beginning temperature of recrystallization is 600 ℃, and the finishing temperature is 750 ℃. As the annealing temperature increases, the hardness of the high-entropy alloy decreases first and then tends to be gentle, and microstructure gradually changes from fibrous deformed grains to randomly oriented recrystallized grains. |
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| Keywords: | FeCoCrNiMn high-entropy alloy severe cold rolling annealing crystal structure microstructure evolution |
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