文章信息/Info

Title:

Research Progress in Additive Manufacturing Technology of Superalloy under Magnetic Field

文章編號:

1674-3962(2024)10-0879-12

作者:

郝銘淞; 李金國; 盧楠楠; 梁靜靜; 王 凱

1.東北大學 材料電磁過程研究教育部重點實驗室，遼寧 沈陽 110167 2.中國科學院金屬研究所 師昌緒先進材料創(chuàng)新中心高溫合金結構材料研究部，遼寧 沈陽110016

Author(s):

HAO Mingsong; LI Jinguo; LU Nannan; LIANG Jingjing; WANG Kai

1. Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang 110167, China 2. Shi-changxu Innovation Center for Advanced Materials, Superalloys Division, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

關鍵詞:

磁場; 高溫合金; 增材制造; 缺陷; 微觀組織; 力學性能

Keywords:

magnetic field;  superalloy;  additive manufacturing;  defect;  microstructure;  mechanical property

分類號:

TG132.3

DOI:

10.7502/j.issn.1674-3962.202312005

文獻標志碼:

A

摘要:

相比傳統(tǒng)的高溫合金加工過程，高溫合金增材制造具有生產周期短、材料利用率高等優(yōu)勢，但仍存在一些問題和瓶頸阻礙著該技術的發(fā)展。例如，在成形過程中難以避免的氣孔和裂紋缺陷、材料性能各向異性明顯等諸多問題。新興的磁場輔助增材制造技術憑借磁場的無接觸式控制特點，可以影響熔池對流和凝固動力學，改變材料凝固組織，并優(yōu)化材料的力學性能。介紹了磁場對金屬凝固過程熔體流動和組織凝固的影響機制，具體綜述了磁場在高溫合金增材制造方面的研究進展，分析了磁場對缺陷、微觀凝固組織及力學性能的影響效果。

Abstract:

Compared with the traditional processing of superalloys, additive manufacturing of superalloys has the advantages of short production cycle and high material utilization. However, there are still some problems and bottlenecks that hinder the development of additive manufacturing of superalloys. For example, it is difficult to avoid porosity and crack defects in the forming process, and the anisotropy of material properties is obvious. The emerging magnetic field-assisted additive manufacturing technology can affect the convection and solidification kinetics of the molten pool, change the solidification structure of the material, and optimize the mechanical properties of the material by virtue of the non-contact control characteristics of the magnetic field. Therefore, this paper introduces the influence mechanism of magnetic field on melt flow and microstructure solidification during metal solidification. The research progress of magnetic field on additive manufacturing of superalloys is reviewed in detail. The effects of magnetic field on defects, microstructure and mechanical properties are analyzed.