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YUAN Xiaojing, GUO Xiaohui, GUAN Ning, WANG Xuping, ZHAN Jun, SUN Lei. Molecular dynamics simulation of NiCr alloy fabricated by micro-plasma additive manufacturing[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2021, 42(8): 25-32. DOI: 10.12073/j.hjxb.20210131001
Citation: YUAN Xiaojing, GUO Xiaohui, GUAN Ning, WANG Xuping, ZHAN Jun, SUN Lei. Molecular dynamics simulation of NiCr alloy fabricated by micro-plasma additive manufacturing[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2021, 42(8): 25-32. DOI: 10.12073/j.hjxb.20210131001

Molecular dynamics simulation of NiCr alloy fabricated by micro-plasma additive manufacturing

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  • Received Date: January 30, 2021
  • Available Online: October 24, 2021
  • The rapid solidification process of NiCr alloy produced by micro arc plasma has an important influence on the microstructure and properties of structural parts manufactured by additive. In this paper, molecular dynamics (MD) was used to simulate the temperature field and the growth of equiaxed grains in the process of micro arc plasma additive forming NiCr alloy components. The results show that the NiCr alloy exhibits amorphous solidification at cooling rates of 3.38 K/ps and 0.675 K/ps, and the NiCr alloy spontaneously nucleates and grows at cooling rates of 0.077 5 K/ps, realizing equiaxed solidification and crystallization. The simulation results are in good agreement with the phase field method and the electron micrographs of equiaxed region, which provides a theoretical basis for the study of microstructure evolution of NiCr alloy fabricated by micro arc plasma additive manufacturing.
  • 高钰璧, 丁雨田, 孟斌, 等. Inconel 625合金中析出相演变研究进展[J]. 材料工程, 2020, 48(5): 13 − 22. doi: 10.11868/j.issn.1001-4381.2018.000424

    Gao Yubi, Ding Yutian, Meng Bin, et al. Research progress in evolution of precipitated phases in Inconel 625 super alloy[J]. Journal of Materials Engineering, 2020, 48(5): 13 − 22. doi: 10.11868/j.issn.1001-4381.2018.000424
    Wang K, Liu Y, Sun Z, et al. Microstructural evolution and mechanical properties of Inconel 718 superalloy thin wall fabricated by pulsed plasma arc additive manufacturing[J]. Journal of Alloys and Compounds, 2020, 819: 1 − 10. doi: 10.1016/j.jallcom.2019.152936
    耿汝伟, 杜军, 魏正英, 等. 金属增材制造中微观组织相场法模拟研究进展[J]. 材料导报, 2018, 32(7): 1145 − 1150, 1180. doi: 10.11896/j.issn.1005-023X.2018.07.015

    Geng Ruwei, Du Jun, Wei Zhengying, et al. Current research status of phase field simulation for microstructures of additively manufactured metals[J]. Materials Reports, 2018, 32(7): 1145 − 1150, 1180. doi: 10.11896/j.issn.1005-023X.2018.07.015
    Sawant M, Jain N K, Nikam S. Theoretical modeling and finite element simulation of dilution in micro-plasma transferred arc additive manufacturing of metallic materials[J]. International Journal of Mechanical Sciences, 2019, 164: 1 − 10. doi: 10.1016/j.ijmecsci.2019.105166
    张冬云, 吴瑞, 张晖峰, 等. 激光金属熔覆成形过程中温度场演化的三维数值模拟[J]. 中国激光, 2015, 42(5): 104 − 115.

    Zhang Dongyun, Wu Rui, Zhang Huifeng, et al. Numerical simulation of temperature field evolution in the process of laser metal deposition[J]. Chinese Journal of Lasers, 2015, 42(5): 104 − 115.
    马立杰. AISI316激光熔覆成形过程数值模拟研究[D]. 北京: 北京理工大学硕士学位论文, 2015.

    Ma Lijie. The research of AISI 316 of numerical simulation in laser cladding forming (LCF)[D]. Beijing: Master Thesis of Beijing Institute of Technology, 2015.
    黄健康, 杨茂鸿, 余淑荣, 等. 旁路耦合微束等离子弧堆垛与熔池动态行为数值模拟[J]. 机械工程学报, 2018, 54(2): 70 − 76. doi: 10.3901/JME.2018.02.070

    Huang Jiankang, Yang Maohong, Yu Shurong, et al. Study on the dynamic behavior of metal pool during the stationary pileup of the double-electrode micro plasma arc welding[J]. Journal of Mechanical Engineering, 2018, 54(2): 70 − 76. doi: 10.3901/JME.2018.02.070
    Keller T, Lindwall G, Ghosh S, et al. Application of finite element, phase-field, and CALPHAD-based methods to additive manufacturing of Ni-based superalloys[J]. Acta Materialia, 2017, 139: 244 − 253. doi: 10.1016/j.actamat.2017.05.003
    梁永超, 刘让苏, 朱轩民, 等. 液态Mg7Zn3合金快速凝固过程中微观结构演变机理的模拟研究[J]. 物理学报, 2010, 59(11): 7930 − 7940. doi: 10.7498/aps.59.7930

    Liang Yongchao, Liu Rangsu, Zhu Xuanmin, et al. Simulation study of evolution mechanisms of microstructures during rapid solidification of liquid Mg7Zn3 alloy[J]. Acta Physica Sinica, 2010, 59(11): 7930 − 7940. doi: 10.7498/aps.59.7930
    陈强, 曹红红, 黄海波. 分子动力学中势函数研究[J]. 天津理工学院学报, 2004, 20(2): 101 − 105.

    Chen Qiang, Cao Honghong, Huang Haibo. A research on the interatomic potential in molecular dynamics(MD)[J]. Journal of Tianjin Institute of Technology, 2004, 20(2): 101 − 105.
    Hirel P. Atomsk: A tool for manipulating and converting atomic data files[J]. Computer Physics Communications, 2015, 197: 212 − 219. doi: 10.1016/j.cpc.2015.07.012
    Tsuzuki H, Branicio P S, Rino J P. Structural characterization of deformed crystals by analysis of common atomic neighborhood[J]. Computer Physics Communications, 2007, 177(6): 518 − 523. doi: 10.1016/j.cpc.2007.05.018
    方向, 赵云松, 张剑, 等. 固溶热处理对一种第三代镍基单晶高温合金组织及高温持久性能的影响[J]. 重庆大学学报, 2017, 40(10): 87 − 98. doi: 10.11835/j.issn.1000-582X.2017.10.010

    Fang Xiang, Zhao Yunsong, Zhang Jian, et al. Effect of solution heat treatment on microstructures and stress rupture properties of a third generation Ni-based single crystal superalloy[J]. Journal of Chongqing University, 2017, 40(10): 87 − 98. doi: 10.11835/j.issn.1000-582X.2017.10.010
    Bonny G, Terentyev D, Pasianot R C, et al. Interatomic potential to study plasticity in stainless steels: the FeNiCr model alloy[J]. Modelling & Simulation in Materials Science & Engineering, 2011, 19(8): 85008 − 85021.
    刘志勇, 许庆彦, 柳百成. 铸造镁合金的枝晶生长模拟[J]. 金属学报, 2007, 43(4): 367 − 373. doi: 10.3321/j.issn:0412-1961.2007.04.007

    Liu Zhiyong, Xu Qingyan, Liu Baicheng. Modedling of dendrite growth for the cast magnesium alloy[J]. Acta Metallurgica Sinica, 2007, 43(4): 367 − 373. doi: 10.3321/j.issn:0412-1961.2007.04.007

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