[1]刘博浩,郝荣,乔珺威.高熵合金中的锯齿流变行为研究进展[J].中国材料进展,2025,44(01):061-73.[doi:10.7502/j.issn.1674-3962.202410007]
Liu Bohao,Hao Rong,Qiao Junwei.Research Progress on Serrated Flow Behavior in High-Entropy Alloys[J].MATERIALS CHINA,2025,44(01):061-73.[doi:10.7502/j.issn.1674-3962.202410007]
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高熵合金中的锯齿流变行为研究进展(
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]
- 卷:
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44
- 期数:
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2025年01
- 页码:
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061-73
- 栏目:
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- 出版日期:
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2025-01-30
文章信息/Info
- Title:
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Research Progress on Serrated Flow Behavior in High-Entropy Alloys
- 文章编号:
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1674-3962(2025)01-0061-13
- 作者:
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刘博浩; 郝荣; 乔珺威
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太原理工大学材料科学与工程学院，山西 太原 030024
- Author(s):
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Liu Bohao; Hao Rong; Qiao Junwei
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College of Materials Science and Engineering, Taiyuan University of Technology， Taiyuan 030024， China
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- 关键词:
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高熵合金; 锯齿流变; PLC效应; 临界应变; 平均场理论; 数字图像相关法
- Keywords:
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high-entropy alloys; serrated flow; PLC effect; critical strain; mean-fileld theory; digital image correlation
- 分类号:
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TG139
- DOI:
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10.7502/j.issn.1674-3962.202410007
- 文献标志码:
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A
- 摘要:
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高熵合金由于其独特的合金组成和多种元素的均匀分布，展现出了传统合金无法比拟的优异力学性能、热稳定性和耐腐蚀性。因此，这类新型材料近年来成为材料科学领域的研究热点之一。在高熵合金的塑性变形过程中，锯齿流变行为是一种十分重要且典型的现象，它通常表现为应力应变曲线中的不规则波动。该行为揭示了材料内部复杂的动力学机制，与动态应变时效和位错运动等微观结构演变密切相关。研究表明，在不同的外部条件下，锯齿流变行为会呈现出不同的特征，并对材料的力学性能产生显著影响。近年来，学者们在锯齿流变行为的发生机理、影响因素及其对高熵合金材料性能的作用机理方面进行了广泛的研究，揭示了高熵合金内部位错滑移、局部应变集中等现象的本质。系统综述了高熵合金中锯齿流变行为的最新研究进展，重点讨论了锯齿流变行为的理论基础、实验方法以及特征参数的定量分析，旨在为进一步提高高熵合金的力学性能和工程应用提供理论指导。
- Abstract:
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High-entropy alloys (HEAs) exhibit outstanding mechanical properties, thermal stability, and corrosion resistance due to their unique alloy compositions and the uniform distribution of multiple elements. Consequently, these novel materials have become a research hotspot in the field of materials science in recent years. Serrated flow behavior is a significant and characteristic phenomenon observed during the plastic deformation of high-entropy alloys, typically manifested as irregular fluctuations in the stress-strain curve. This behavior reveals the complex dynamic mechanisms within the material and is closely related to microstructural evolution, such as dynamic strain aging and dislocation movement. Studies have shown that serrated flow behavior presents different characteristics under various external conditions, significantly impacting the mechanical properties of the materials. In recent years, researchers have extensively investigated the mechanisms behind serrated flow behavior, its influencing factors, and its effects on the performance of highentropy alloy materials, uncovering the essence of phenomena such as dislocation slip and localized strain concentration within these alloys. This article systematically reviews the latest research progress on serrated flow behavior in high-entropy alloys, focusing on the theoretical foundations,experimental methods, and quantitative analysis of characteristic parameters.The aim is to provide theoretical guidance for further improving the mechanical performance and engineering applications of high-entropy alloys.
备注/Memo
- 备注/Memo:
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收稿日期：2024-10-14修回日期：2024-12-12
基金项目：国家自然科学基金资助项目（52271110）；山西省科技厅研究项目（2022-037）；山西省重点研发计划项目（202102050201008）
第一作者：刘博浩，男，2000年生，博士研究生
通讯作者：乔珺威，男，1982年生，教授，博士生导师，
Email:qiaojunwei@gmail.com
更新日期/Last Update:
2024-12-30