[1]郭嘉鸣,倪冰雨,焦增宝.纳米析出强化高熵合金的研究进展[J].中国材料进展,2025,44(01):031-39.[doi:10.7502/j.issn.1674-3962.202410004]
　GUO Jiaming,NI Bingyu,JIAO Zengbao.Research Progress on Nanoprecipitation-Strengthened High-Entropy Alloys[J].MATERIALS CHINA,2025,44(01):031-39.[doi:10.7502/j.issn.1674-3962.202410004]
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纳米析出强化高熵合金的研究进展()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
44
期数:
2025年01
页码:
031-39
栏目:
出版日期:
2025-01-30

文章信息/Info

Title:
Research Progress on Nanoprecipitation-Strengthened High-Entropy Alloys
文章编号:
1674-3962(2025)01-0031-09
作者:
郭嘉鸣; 倪冰雨; 焦增宝
1. 香港理工大学机械工程学系，香港特别行政区 2. 香港理工大学深圳研究院，广东 深圳 518057
Author(s):
GUO Jiaming;  NI Bingyu;  JIAO Zengbao
1 Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong, China 2 The Hong Kong Polytechnic University Shenzhen Research Institute,Shenzhen 518057, China
关键词:
高熵合金; 析出强化; 析出组织; 复合析出; 力学性能
Keywords:
high-entropy alloys;  precipitation strengthening;  precipitate microstructure;  co-precipitation;  mechanical properties
分类号:
TG139;TB383
DOI:
10.7502/j.issn.1674-3962.202410004
文献标志码:
A
摘要:
纳米析出强化是提高高熵合金强度的重要方法，理解纳米析出相的形成机理及其对高熵合金力学性能的影响机制，对设计和开发高性能高熵合金具有重要意义。系统综述了纳米析出强化高熵合金的研究进展和未来展望，重点讨论了共格析出、非共格析出和复合析出等不同析出形式对高熵合金力学行为和强韧化机制的影响。共格析出相凭借其与基体良好的晶格匹配性和应力传递能力，在显著强化合金的同时保持了良好的塑性；非共格析出相可显著增强合金的加工硬化能力，但需要合理调控其形貌、尺寸和分布，并充分利用高熵合金基体优异的塑性和应变硬化能力，也可以实现强韧性的良好匹配；多种纳米相的复合析出可有效发挥不同析出相的集成优势，为高熵合金的性能优化提供了新思路。需要指出，尽管纳米析出强化高熵合金极具应用前景，但在热稳定性、高温性能和工业化生产成本等方面仍面临挑战，需要进一步深入研究。对纳米析出强化高熵合金的研究现状和关键问题进行了系统归纳，可为今后设计高性能高熵合金提供重要指导依据。
Abstract:
Precipitation strengthening is considered as an effective approach to enhance the strength of high-entropy alloys (HEAs), and understanding of the precipitation mechanisms and the relationship between precipitate microstructure and mechanical properties is crucial for the development of high-performance HEAs. This article provides a comprehensive review of the research progress and future perspectives on nanoprecipitation-strengthened HEAs, with an emphasis on the influence of various types of precipitation, including coherent precipitation, incoherent precipitation, and co-precipitation, on the mechanical behavior and strengthening mechanisms of HEAs. Coherent precipitates can significantly strengthen the alloys while maintaining good ductility, benefiting from their excellent lattice matching and stress transfer with the matrix. Incoherent precipitates can provide high work hardening, but it is important to reasonably tailor their morphology, size, and distribution, and to fully utilize the excellent ductility and strain hardening capability of the matrix, in order to achieve a good strength-ductility balance in HEAs.Furthermore, the co-precipitation method can take the advantages of various types of precipitates, which opens new opportunities for optimizing mechanical properties of HEAs. Despite the great promise, nanoprecipitationstrengthened HEAs still face challenges in terms of thermal stability, elevatedtemperature performance, and cost, which require further research efforts in the future. This review presents the recent advancement and key issues of nanoprecipitation-strengthened HEAs, which can provide useful guidelines for the development of advanced HEAs for technological applications.

备注/Memo

备注/Memo:
收稿日期：2024-10-12修回日期：2024-11-21 基金项目：国家自然科学基金资助项目（52171162）；香港研究 资助局资助项目（15227121） 第一作者：郭嘉鸣，男，1996年生，博士研究生 通讯作者：焦增宝，男，1983年生，副教授，博士生导师， Email:zb.jiao@polyu.edu.hk
更新日期/Last Update: 2024-12-30