Gradient Microstructure of K 4169 Superalloy Prepared by Low Voltage Pulsed Magnetic Field Combined with Directional Solidification

被引：1
|
作者：
Li, Yingju [1 ]
Zhang, Kuiliang [1 ]
Zhu, Cheng [1 ]
Zheng, Ce [1 ]
Feng, Xiaohui [1 ]
Yang, Yuansheng [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2024年 / 53卷 / 08期
基金：
中国国家自然科学基金;
关键词：
pulsed magnetic field; gradient microstructure; superalloy; Lorentz force; forced convection; GRAIN-REFINEMENT; BEHAVIOR; TRANSITION; ALLOYS;
D O I：
10.12442/j.issn.1002-185X.20230847
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of the low voltage pulsed magnetic field (LVPMF) on the microstructure transition of K4169 superalloy was investigated. The gradient microstructure of K4169 superalloy composed of columnar grains, coarse grains, and fine grains was prepared through the combined method of LVPMF with directional solidification, which provided a new approach for the preparation of superalloy with gradient microstructure. The distribution of the Lorentz force and flow field under LVPMF effect was simulated, and therefore the microstructure transition mechanism was revealed. Results show that the microstructure transition should be attributed to the coupling effects of the Lorentz force and forced convection.
引用
收藏
页码：2152 / 2155
页数：4
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