Enhancing the high-cycle fatigue property of aluminum alloy by adding fine-sized hard particles

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-10-06 DOI:10.1016/j.compositesa.2025.109344

H. Wang , Z.J. Zhang , S.Z. Zhu , X.T. Li , Y.K. Zhu , R. Liu , J.P. Hou , B.S. Gong , H.Z. Liu , D. Wang , Z.Y. Ma , Z.F. Zhang

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Abstract

This study investigates the high-cycle fatigue (HCF) behavior of aluminum matrix composites (AMCs) reinforced with B₄C particles of varying sizes and their unreinforced matrix. Key findings reveal that while AMCs exhibit less favorable strength and ductility than the unreinforced alloy, fine reinforcement particles significantly enhance the HCF properties of AMCs. The enhanced HCF properties is attributed to three aspects: (i) weakened texture orientation density and transition from soft [001] fiber texture to hard [111] fiber texture; (ii) decreased stress level of matrix nearby the reinforcement particles, and (iii) residual compressive stress induced in the dangerous zone. As particle size decreases, the HCF properties further increases which is related to lowered probability of particle cracking, increased resistance to crack initiation and propagation within matrix, and enhanced matrix strengthening effect. Concurrently, the distinct bimodal fatigue life distribution observed in AMCs with coarse particle diminishes as particle cracking ceases to dominate fatigue failure. These findings elucidate the superior HCF properties of fine-particle reinforced AMCs, and provide a foundation for fatigue-resistant composite design.

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通过添加细粒硬质颗粒提高铝合金的高周疲劳性能

研究了不同尺寸B4C颗粒增强铝基复合材料及其未增强基体的高周疲劳性能。主要研究结果表明，尽管AMCs的强度和延展性不如未增强的合金，但细增强颗粒显著提高了AMCs的HCF性能。HCF性能增强的原因有三个方面：(1)织构取向密度减弱，由软纤维[001]织构向硬纤维[111]织构过渡；(2)增强颗粒附近基体应力水平降低，(3)危险区残余压应力诱发。随着颗粒尺寸的减小，HCF性能进一步提高，降低了颗粒的开裂概率，增加了抗裂纹在基体内萌生和扩展的能力，增强了基体的强化效果。同时，随着颗粒裂纹不再主导疲劳失效，粗颗粒复合材料明显的双峰疲劳寿命分布减弱。这些发现阐明了细颗粒增强AMCs优越的HCF性能，为抗疲劳复合材料的设计提供了基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Composites Part A: Applied Science and Manufacturing 工程技术-材料科学：复合

CiteScore

15.20

自引率

5.70%

发文量

492

审稿时长

30 days

期刊介绍： Composites Part A: Applied Science and Manufacturing is a comprehensive journal that publishes original research papers, review articles, case studies, short communications, and letters covering various aspects of composite materials science and technology. This includes fibrous and particulate reinforcements in polymeric, metallic, and ceramic matrices, as well as 'natural' composites like wood and biological materials. The journal addresses topics such as properties, design, and manufacture of reinforcing fibers and particles, novel architectures and concepts, multifunctional composites, advancements in fabrication and processing, manufacturing science, process modeling, experimental mechanics, microstructural characterization, interfaces, prediction and measurement of mechanical, physical, and chemical behavior, and performance in service. Additionally, articles on economic and commercial aspects, design, and case studies are welcomed. All submissions undergo rigorous peer review to ensure they contribute significantly and innovatively, maintaining high standards for content and presentation. The editorial team aims to expedite the review process for prompt publication.