高性能金属材料高能电脉冲处理工艺研究进展

doi:10.13251/j.issn.0254-6051.2021.10.001

摘要/Abstract

摘要： 电脉冲处理是一种周期式高能量非平衡输入方式的新型热处理方法,本文重点介绍了电脉冲处理工艺对金属材料再结晶、相变和非晶晶化等影响。从材料热力学和动力学的角度出发,阐述了电脉冲降低材料热力学能垒和加速原子扩散的作用机制,揭示了电脉冲诱发快速再结晶、相变和非晶纳米晶化的机理。电脉冲处理技术有利于金属材料组织结构优化控制和性能提升,在高性能金属材料制备与加工行业中具有广阔的应用前景。

关键词: 电脉冲处理, 金属材料, 相变, 组织, 性能

Abstract: Electropulsing treatment (EPT) is a novel heat treatment with periodic non-equilibrium high-energy input. Effect of EPT on recrystallization, phase transformation and amorphous crystallization of metallic materials was introduced. From the viewpoint of material thermodynamics and dynamics, the roles of electropulsing in reducing thermodynamic energy barrier and accelerating atomic diffusion were elaborated, and mechanisms of recrystallization, phase transformation and amorphous nanocrystallization induced by electropulsing were also revealed, which was conducive to optimize microstructure and improve properties. EPT has a broad application prospect in producing industry of high-performance metallic materials.

Key words: electropulsing treatment, metallic material, phase transformation, microstructure, properties

中图分类号:

TG146.2

鲁岩娜, 龙佳慧, 姜雁斌, 刘新华. 高性能金属材料高能电脉冲处理工艺研究进展[J]. 金属热处理, 2021, 46(10): 1-11.

Lu Yanna, Long Jiahui, Jiang Yanbin, Liu Xinhua. Research progress on high-energy electropulsing treatment of high-performance metallic materials[J]. Heat Treatment of Metals, 2021, 46(10): 1-11.

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