Effect of wide-spectrum pulsed magnetic field on grain refinement of pure aluminium

被引：5
|
作者：
Bai, Ya-ming [1 ]
Li, Gang [1 ]
Sun, Ya-wei [1 ]
Gong, Yong-yong [1 ,2 ]
Zhai, Qi-jie [2 ,3 ]
机构：
[1] Shanghai Univ, Coll Sci, 99 Shangda Rd, Shanghai 200444, Peoples R China
[2] Shanghai Univ, Ctr Adv Solidificat, 99 Shangda Rd, Shanghai 200444, Peoples R China
[3] Shanghai Univ, Sch Mat Sci & Engn, 99 Shangda Rd, Shanghai 200444, Peoples R China
来源：
CHINA FOUNDRY | 2023年 / 20卷 / 01期
基金：
中国国家自然科学基金;
关键词：
wide-spectrum pulsed magnetic field; forced flow; grain refinement; frequency components; TG146; 21; A; SOLIDIFICATION STRUCTURE; AL; ALLOY; MECHANISM; MICROSTRUCTURE;
D O I：
10.1007/s41230-023-1108-8
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
A wide-spectrum pulsed magnetic field (WSPMF) was obtained by adjusting the number of current pulses and the pulse interval between adjacent pulses. The effect of WSPMF on the grain refinement of pure aluminium was studied. The distribution of electromagnetic force and flow field in the melt under the WSPMF was simulated to reveal the grain refining mechanism. Results show that the grain refinement is attributed to the combined effect of the melt flow and oscillation under a WSPMF. When the pulse interval is 5 ms, the extreme value of electromagnetic force is the highest, and the size of the crystal nucleus is 0.35 mm. In the case of similar flow rates, the grain size gradually decreases as the pulse interval increases. The range of the harmonic frequency of the magnetic field gradually expands with the increase of the pulse interval, which can provide more energy for nucleation at the solid-liquid interface and promote nucleation.
引用
收藏
页码：40 / 48
页数：9
相关论文
共 50 条
  • [31] POSSIBILITIES OF CREATING A WIDE-SPECTRUM NEUTRON POLARIZER FOR PULSED-NEUTRON SOURCES
    NIKITENKO, YV
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1994, 337 (2-3): : 441 - 444
  • [32] Wide-Spectrum Pulsed Fiber Laser based on Picosecond Pulse Generation Supercontinuum
    Lin Peng
    Wang Tianshu
    Chen Junda
    Zhang Xinmeng
    Sun Zhiwen
    Jiang Ziqi
    2018 ASIA COMMUNICATIONS AND PHOTONICS CONFERENCE (ACP), 2018,
  • [33] The effect of alloy content on the grain refinement of aluminium alloys
    Easton, MA
    StJohn, DH
    LIGHT METALS 2001, 2001, : 927 - 933
  • [34] Grain refinement in technically pure aluminium plates using incremental ECAP processing
    Chrominski, W.
    Olejnik, L.
    Rosochowski, A.
    Lewandowska, M.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 636 : 172 - 180
  • [35] The study of grain transport effects on grain refinement under pulsed magnetic fields
    Yao, Bo Huai
    Zhao, Zhen
    Gui, Zhong-lin
    Wang, Jia
    Gong, Yong -Yong
    MATERIALS TODAY COMMUNICATIONS, 2024, 38
  • [36] Effect of grain refinement by ECAP on creep of pure Cu
    Blum, W.
    Dvorak, J.
    Kral, P.
    Eisenlohr, P.
    Sklenicka, V.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 590 : 423 - 432
  • [37] Effect of pulsed magnetic field on the solidified structure of pure Al melt
    Gao, Yu-Lai
    Li, Qiu-Shu
    Li, Hai-Bin
    Zhai, Qi-Jie
    MATERIALS PROCESSING UNDER THE INFLUENCE OF EXTERNAL FIELDS, 2007, : 61 - +
  • [38] Grain Refinement of Inconel 718 Superalloy-The Effect of Rotating Magnetic Field
    Silva, Rui Pedro
    Soares, Rui
    Neto, Rui
    Reis, Ana
    Paiva, Ricardo
    Madureira, Rui
    Silva, Jose
    MATERIALS, 2022, 15 (06)
  • [39] Experimental study on the effect of magnetic field on the grain refinement during hot deformation
    Northeastern Univ, Shenyang, China
    Dongbei Daxue Xuebao/Journal of Northeastern University, 2000, 21 (06): : 645 - 647
  • [40] The effect of grain size on the fatigue of commercially pure aluminium
    Turnbull, A
    Rios, ERD
    FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 1995, 18 (12) : 1455 - 1467
12345