相场法研究Fe84Cu15Mn1合金富Cu相析出的内磁能作用机理

蒋新安; 赵宇宏; 杨文奎; 田晓林; 侯华

doi:10.7498/aps.71.20212087

摘要

本文基于连续相场模型, 对内磁能作用下Fe-Cu-Mn合金中富Cu相析出行为进行了研究, 得到不同温度、不同Mn, Cu含量条件下的内磁能对富Cu相的平均颗粒半径、体积分数、吉布斯自由能的影响. 模拟结果表明, Mn含量越低, 居里温度越高, 内磁能对自由能的贡献越大, 且内磁能的贡献随温度升高而减小; 内磁能降低了相结构转变势垒, 促进了相结构转变. 沉淀相体积分数随Cu含量增加而增加, 通过对比有无内磁能对沉淀相体积分数的影响, 内磁能作用导致沉淀相拥有更大的体积分数. 因此在内磁能作用下, 富Cu相具有较大的平均粒径、体积分数和较小的矫顽力, 同时预测了合金硬度的变化趋势.

关键词:

Abstract

Based on the continuous phase field model, the precipitation behavior of Cu rich phase in Fe-Cu-Mn alloy under the action of internal magnetic energy is studied. The effects of internal magnetic energy on the average particle radius, volume fraction and Gibbs free energy of Cu rich phase at different temperatures and different Mn content and Cu content are investigated. The simulation results show that the lower the Mn content and the higher the Curie temperature, the greater the contribution of internal magnetic energy to free energy is, and the contribution of internal magnetic energy decreases with temperature increasing. The internal magnetic energy reduces the phase structure transition barrier and promotes the phase structure transition. The volume fraction of precipitated phase increases with Cu content increasing. Compared with the effect of internal magnetic energy on the volume fraction of precipitated phase, the effect of internal magnetic energy leads to a large volume fraction of precipitated phase. Therefore, under the action of internal magnetic energy, the Cu rich phase has larger average particle size, volume fraction and smaller coercivity. Finally, the change trend of alloy hardness is predicted.

Keywords:

作者及机构信息

中北大学材料科学与工程学院, 太原　030051

通信作者: 赵宇宏, zhaoyuhong@nuc.edu.cn

基金项目: 国家自然科学基金(批准号: 52074246)和山西省研究生创新项目(批准号: 2021Y592)资助的课题.

Authors and contacts

School of Materials Science and Engineering, North University of China, Taiyuan 030051, China

Corresponding author: Zhao Yu-Hong, zhaoyuhong@nuc.edu.cn

Funds: Project supported by the National Natural Science Foundation of China (Grant No. 52074246) and the Shanxi Graduate Innovation Project, China (Grant No. 2021Y592).

文章全文

参考文献

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施引文献

图 1 不同温度下GFE随Cu浓度变化情况　(a) 不考虑IME作用; (b) 考虑IME作用

Fig. 1. Gibbs free energy versus Cu concentration at different temperatures: (a) The effect of internal magnetic energy is not considered; (b) the effect of internal magnetic energy is considered.

下载: 全尺寸图片幻灯片

图 2 (a)—(e) 823 K时无IME作用下的演化过程　(a) $ {t}^{\mathrm{*}} $= 7500, (b) $ {t}^{\mathrm{*}} $= 8500, (c) $ {t}^{\mathrm{*}} $= 9000, (d) $ {t}^{\mathrm{*}} $= 9500, (e) $ {t}^{\mathrm{*}} $= 11000; (f)—(j) 有IME作用下的演化过程 (f) $ {t}^{\mathrm{*}} $= 7500, (g) $ {t}^{\mathrm{*}} $= 8500, (h) $ {t}^{\mathrm{*}} $= 9000, (i) $ {t}^{\mathrm{*}} $= 9500, (j) $ {t}^{\mathrm{*}} $= 11000; (k) 有IME与无IME作用下的平均颗粒半径变化

Fig. 2. (a)–(e) The evolution process without internal magnetism at 823 K: (a) $ {t}^{\mathrm{*}} $= 7500, (b) $ {t}^{\mathrm{*}} $= 8500, (c) $ {t}^{\mathrm{*}} $= 9000, (d) $ {t}^{\mathrm{*}} $= 9500, (e) $ {t}^{\mathrm{*}} $= 11000; (f)–(j) the evolution process with internal magnetism: (f) $ {t}^{\mathrm{*}} $= 7500, (g) $ {t}^{\mathrm{*}} $= 8500, (h) $ {t}^{\mathrm{*}} $= 9000, (i) $ {t}^{\mathrm{*}} $= 9500, (j) $ {t}^{\mathrm{*}} $= 11000; (k) the change of average particle radius with and without internal magnetism.

下载: 全尺寸图片幻灯片

图 3 温度为823 K时IME作用下Mn与Cu沉淀析出的成分曲线(原子含量)　(a) 早期(t^* = 2500)时Cu与Mn的成分曲线; (b) 不同时间步数Cu的成分曲线; (c) 不同时间步数Mn的成分曲线; (d) Mn环在不同时间步数的演化过程

Fig. 3. The composition curve of precipitation of Mn and Cu under the action of magnetic energy in 823 K (atomic percent): (a) The composition curve of Cu and Mn in early (t^* = 2500); (b) composition curve of Cu with different time steps; (c) composition curve with different time step size of Mn; (d) evolution process of Mn ring with different time steps.

下载: 全尺寸图片幻灯片

图 4 Cu原子和Mn原子相互作用和局部元素分布示意图　(a)—(c) Cu, Mn原子相互作用示意图; (d) Fe, Cu, Mn局部元素分布示意图

Fig. 4. Schematic diagram of Cu atom and Mn atom interaction and local element distribution: (a)–(c) Schematic diagrams of Cu and Mn atom interaction; (d) schematic diagram of local element distribution of Fe, Cu and Mn.

下载: 全尺寸图片幻灯片

图 5 温度为823 K　(a) Mn含量与居里温度的关系; (b) 温度与IME的关系; (c) 不同Mn含量下吉布斯自由能

Fig. 5. At 823 K (a) Relationship between Mn content and Curie temperature; (b) relationship between temperature and internal magnetic energy; (c) Gibbs free energy with different Mn content.

下载: 全尺寸图片幻灯片

图 6 在有无IME作用下体积分数随Cu含量的变化

Fig. 6. Variation of volume fraction with Cu content with or without internal magnetic energy.

下载: 全尺寸图片幻灯片

图 7 矫顽力($ {H}_{\mathrm{c}} $)与颗粒半径以及硬度的关系示意图　(a) $ {H}_{\mathrm{c}} $与平均颗粒半径的关系示意图; (b) $ {H}_{\mathrm{c}} $与硬度关系示意图

Fig. 7. The relationship between coercivity ($ {H}_{\mathrm{c}} $) and particle radius and hardness: (a) Schematic diagram of relationship between $ {H}_{\mathrm{c}} $ and average particle radius; (b) schematic diagram of relationship between $ {H}_{\mathrm{c}} $ and hardness.

下载: 全尺寸图片幻灯片

[1]	Que Z, Heczko M, Kuběna I, Seifert H P, Spaetig P 2020 Mater. Charact. 165 110405 Google Scholar
[2]	Deschamps A, Militzer M, Poole W 2001 ISIJ. INT. 41 196 Google Scholar
[3]	Bousquet A, Marie S, Bompard P 2012 Comp. Mater. Sci. 64 17 Google Scholar
[4]	林民东, 朱娟娟, 王伟, 周邦新, 刘文庆, 徐刚 2010 物理学报 59 1163 Google Scholar Ling M D, Zhu J J, Wang W, Zhou B X, Liu W Q, Xu G, 2010 Acta Phys. Sin. 59 1163 Google Scholar
[5]	Miodownik A 1982 J. Phase. Equil. 2 406 Google Scholar
[6]	Zhao Y, Zhang B, Hou H, Chen W, Wang M 2018 J. Mater. Sci. Technol. 35 1044 Google Scholar
[7]	祁科武, 赵宇宏, 田晓林, 彭敦维, 孙远洋, 侯华 2020 物理学报 69 140504 Google Scholar Qi K W, ZhaoY H, Tian X L, Peng D W, Sun Y Y, Hou H 2020 Acta Phys. Sin. 69 140504 Google Scholar
[8]	Cui S, Mamivand M, Morgan D 2020 Mater. Des. 191 108574 Google Scholar
[9]	Sun Y Y, Zhao Y H, Zhao B J, Yang W K, Tian X L, H Hua 2019 J. Mater. Sci. 54 11263 Google Scholar
[10]	Gorbatov O, Razumov I, Gornostyrev Y, Razumovskiy V I, Korzhavyi P, Ruban A 2013 Phys. Rev. B 88 174113 Google Scholar
[11]	Korzhavyi P A, Ruban A V, Gorbatov O I, Gornostyrev 2015 Scr. Mater. 102 11 Google Scholar
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[16]	Chen W, Zhao Y, Yang S, Zhang D, Hou H 2021 Adv. Compos. Hybrid Mater. 4 371 Google Scholar
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[35]	Koyama T 2005 Defect. Diffus. Forum. 593 237 Google Scholar
[36]	Saunders N, Miodownik A 1992 Pergamon
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[38]	Liu K, Hu L J, Zhang Q F, Xie Y P, Gao C, Dong H Y, Liang W Y 2017 Chin. Phys. B 26 83601 Google Scholar
[39]	赵宝军, 赵宇宏, 孙远洋, 杨文奎, 侯华 2019 金属学报 55 8 Google Scholar Zhao B J, Zhao Y H, Sun Y Y, Yang W K, Hou H 2019 Acta Metall. Sin. 55 8 Google Scholar
[40]	Tian X L, Zhao Y H, Peng D W, Guo Q W, Guo Z, Hou H 2021 T. Nonferr. Metal. Soc. 31 1175 Google Scholar
[41]	Xiong S, Qi W, Huang B, Yang W, Li Y J 2010 Mater. Chem. Phys. 120 446 Google Scholar
[42]	Zhu J, Tianlong Z, Yang Y, Liu C T 2019 Acta Mater. 166 560 Google Scholar
[43]	Waseda A, Kimura K, Ino H 1994 Mat. Sci. Eng. A-struct. 181 762 Google Scholar
[44]	Wang L, Darvishi Kamachali R 2021 Acta Mater. 207 116668 Google Scholar
[45]	Sun Y, Zhao Y, Zhao B, Guo Z, Tian X, Yang W, Hou H 2020 Calphad 69 101759 Google Scholar
[46]	Gorbatov O, Okatov S, Gornostyrev Y, Korzhavyi P, Ruban A 2013 Phys. Met. Metallogr+. 114 642 Google Scholar
[47]	Deschamps A, Militzer M, Poole W 2003 ISIJ. INT. 43 1826 Google Scholar
[48]	Osamura K, Okuda H, Shojiro O, Takashima M, Asano K, Furusaka M, Kishida K, Kurosawa F 1994 ISIJ. INT. 34 359 Google Scholar
[49]	Guo H, Enomoto M, Shang C J 2018 Comp. Mater. Sci. 141 101 Google Scholar
[50]	Shu S, Wells P B, Almirall N, Odette G R, Morgan D D 2018 Acta Mater. 157 298 Google Scholar
[51]	田晓林, 赵宇宏, 田晋忠, 侯华 2018 物理学报 67 230201 Google Scholar Tian X L, Zhao Y H, Tian J Z, Hou H 2018 Acta Phys. Sin. 67 230201 Google Scholar
[52]	Shu S, Wirth B, Wells P, Morgan D, Odette G R 2018 Acta Mater. 146 237 Google Scholar
[53]	Isheim D, Gagliano M, Fine M, Seidman D 2006 Acta Mater. 54 841 Google Scholar
[54]	Xie Y P, Zhao S J 2012 Comp. Mater. Sci. 63 329 Google Scholar
[55]	Zheng Z, Lei L, Zhou Q, Wang W H, Zeng D C, Qiu Z, Hong Y 2019 J. Magn. Magn. Mater. 484 105 Google Scholar
[56]	Xie Y P, Zhao S J 2011 Comp. Mater. Sci. 50 2586 Google Scholar
[57]	Ngayam-Happy R, Becquart C S, Domain C, Malerba L 2012 J. Nucl. Mater. 426 198 Google Scholar
[58]	Vincent E, Becquart C S, Domain C 2006 J. Nucl. Mater. 359 227 Google Scholar
[59]	Wang X, Qiang W, Shu G, Qiao J, Wu Y 2021 J. Magn. Magn. Mater. 527 167698 Google Scholar
[60]	Vandenbossche L P, Konstantinović M J, Almazouzi A, Dupré L R 2007 J. Phys. D 40 4114 Google Scholar
[61]	Kamada Y, Park D G, Takahashi S, Kikuchi H, Kobayashi S, Ara K, Hong J H, Park I G 2007 IEEE. T. Magn. 43 2701 Google Scholar
[62]	Lo C 2012 AIP Conf. Proc. 1430 1351 Google Scholar
[63]	Takahashi S, Kubota A, Kobayashi S, Kamada Y, Kikuchi H, Ara K 2007 J. Mater. Process. Technol. 181 199 Google Scholar
[64]	高阳 2008 先进材料测试仪器基础教程(上册) (北京: 清华大学出版社) Gao Y 2008 The Fundamental of Advanced Measuring Instruments for Materials (Vol. 1) (Beijing: Tsinghua University Press) (in Chinese)
[65]	Cui S, Jung I H 2017 Calphad 56 241 Google Scholar
[66]	Miettinen J 2001 Calphad 25 43 Google Scholar

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相场法研究Fe₈₄Cu₁₅Mn₁合金富Cu相析出的内磁能作用机理