Compression Fatigue Properties of Closed-Cell Aluminum Alloy Foams Fabricated by Two-Step Foaming Method

IF 3.4 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Advanced Engineering Materials Pub Date : 2025-03-28 DOI:10.1002/adem.202402769

Lipeng Cui, Xinpei Xu, Zan Zhang, Jian Ding, Zixuan Qiu, Yong Li, Xingchuan Xia

{"title":"Compression Fatigue Properties of Closed-Cell Aluminum Alloy Foams Fabricated by Two-Step Foaming Method","authors":"Lipeng Cui, Xinpei Xu, Zan Zhang, Jian Ding, Zixuan Qiu, Yong Li, Xingchuan Xia","doi":"10.1002/adem.202402769","DOIUrl":null,"url":null,"abstract":"Given the widespread applications of aluminum foams, they inevitably undergo cyclic compressive loading during service, and therefore, it is necessary to study their compression fatigue properties. In this work, closed-cell aluminum alloy foams (CAAF) are obtained by two-step foaming method with A356 as the matrix alloy. Pore structures and quasistatic compression properties of the foam are first analyzed. Subsequently, the effect of stress level and porosity on the compression–compression fatigue performances of CAAF is investigated based on quasistatic compression results. The results indicate a decrease in fatigue life of CAAF with increasing stress levels, with distinct trends observed in stages 2 and 3 of the ε–N curves for 80% porosity. Finally, deformation patterns and failure mechanism of internal porosity under compression–compression fatigue loading are analyzed through a combination of macroscopic characterization and finite element simulation. It is observed that CAAF exhibits two primary deformation modes, namely buckling deformation and shear deformation, under compression-fatigue loading. Crack initiation and propagation primarily occur at nonspherical cells and weaker cell struts with increasing strain.","PeriodicalId":7275,"journal":{"name":"Advanced Engineering Materials","volume":"27 9","pages":""},"PeriodicalIF":3.4000,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Engineering Materials","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/adem.202402769","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

Given the widespread applications of aluminum foams, they inevitably undergo cyclic compressive loading during service, and therefore, it is necessary to study their compression fatigue properties. In this work, closed-cell aluminum alloy foams (CAAF) are obtained by two-step foaming method with A356 as the matrix alloy. Pore structures and quasistatic compression properties of the foam are first analyzed. Subsequently, the effect of stress level and porosity on the compression–compression fatigue performances of CAAF is investigated based on quasistatic compression results. The results indicate a decrease in fatigue life of CAAF with increasing stress levels, with distinct trends observed in stages 2 and 3 of the ε–N curves for 80% porosity. Finally, deformation patterns and failure mechanism of internal porosity under compression–compression fatigue loading are analyzed through a combination of macroscopic characterization and finite element simulation. It is observed that CAAF exhibits two primary deformation modes, namely buckling deformation and shear deformation, under compression-fatigue loading. Crack initiation and propagation primarily occur at nonspherical cells and weaker cell struts with increasing strain.

Abstract Image

查看原文本刊更多论文

两步发泡法制备闭孔铝合金泡沫材料的压缩疲劳性能

由于泡沫铝的广泛应用，其在使用过程中不可避免地要承受循环压缩载荷，因此有必要对其压缩疲劳性能进行研究。本文以A356为基体合金，采用两步发泡法制备了闭孔铝合金泡沫。首先分析了泡沫的孔隙结构和准静态压缩性能。随后，基于准静态压缩结果，研究了应力水平和孔隙率对CAAF压缩疲劳性能的影响。结果表明，CAAF的疲劳寿命随应力水平的增加而降低，且在80%孔隙率的ε-N曲线的第2和第3阶段表现出明显的趋势。最后，通过宏观表征和有限元模拟相结合的方法，分析了压缩-压缩疲劳载荷作用下内部孔隙的变形模式和破坏机制。结果表明，在压缩疲劳载荷作用下，CAAF呈现出屈曲变形和剪切变形两种主要变形模式。随着应变的增加，裂纹的萌生和扩展主要发生在非球形细胞和较弱的细胞支撑处。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Advanced Engineering Materials 工程技术-材料科学：综合

CiteScore

5.70

自引率

5.60%

发文量

544

审稿时长

1.7 months

期刊介绍： Advanced Engineering Materials is the membership journal of three leading European Materials Societies - German Materials Society/DGM, - French Materials Society/SF2M, - Swiss Materials Federation/SVMT.