Liya Tian , Jiucheng Zhao , Xudong Yin , Xiangyu Zong , Zerui Zhao , Ying Ai , Shizhong Zhang
{"title":"Al含量对Ti/Al3Ti/Al层压板性能的影响","authors":"Liya Tian , Jiucheng Zhao , Xudong Yin , Xiangyu Zong , Zerui Zhao , Ying Ai , Shizhong Zhang","doi":"10.1016/j.ijmecsci.2025.110852","DOIUrl":null,"url":null,"abstract":"<div><div>The fundamental relationship between residual aluminum volume fractions (RAVFs) and their effects on mechanical properties, local strain distribution, and microcrack formation patterns in Ti/Al<sub>3</sub>Ti/Al laminated metal composites (LMCs) remains unclear, which impedes progress in designing high-performance LMCs. This study designed a series of Ti/Al<sub>3</sub>Ti/Al LMCs with different RAVFs by adjusting the hot-pressing temperature. By combining high-resolution digital image correlation (HR-DIC) with in-situ X-ray micro-computed tomography (μCT), the mechanism by which RAVFs affect the mechanical properties, strain development, and crack initiation and propagation of LMCs has been clarified. The study revealed that the tensile strength initially increases and then decreases, culminating in a peak of 641 MPa at 25 % of RAVFs. However, the elongation exhibits a monotonic decrease from 3.5 % to 1.1 % as the concentration of RAVFs declines. In addition, it was found that as RAVFs decrease, the longitudinal strain localization in Al<sub>3</sub>Ti becomes more intense and the uniformity of transverse strain within each layer worsens. This causes the fracture mode of LMCs to shift from mainly interface delamination to primarily fracture of the intermetallic phase. This study offers a novel perspective for optimizing the mechanical properties of LMCs, promising to provide theoretical support and practical guidance for developing high-performance composites.</div></div>","PeriodicalId":56287,"journal":{"name":"International Journal of Mechanical Sciences","volume":"306 ","pages":"Article 110852"},"PeriodicalIF":9.4000,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of Al content on the properties of Ti/Al3Ti/Al laminates\",\"authors\":\"Liya Tian , Jiucheng Zhao , Xudong Yin , Xiangyu Zong , Zerui Zhao , Ying Ai , Shizhong Zhang\",\"doi\":\"10.1016/j.ijmecsci.2025.110852\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The fundamental relationship between residual aluminum volume fractions (RAVFs) and their effects on mechanical properties, local strain distribution, and microcrack formation patterns in Ti/Al<sub>3</sub>Ti/Al laminated metal composites (LMCs) remains unclear, which impedes progress in designing high-performance LMCs. This study designed a series of Ti/Al<sub>3</sub>Ti/Al LMCs with different RAVFs by adjusting the hot-pressing temperature. By combining high-resolution digital image correlation (HR-DIC) with in-situ X-ray micro-computed tomography (μCT), the mechanism by which RAVFs affect the mechanical properties, strain development, and crack initiation and propagation of LMCs has been clarified. The study revealed that the tensile strength initially increases and then decreases, culminating in a peak of 641 MPa at 25 % of RAVFs. However, the elongation exhibits a monotonic decrease from 3.5 % to 1.1 % as the concentration of RAVFs declines. In addition, it was found that as RAVFs decrease, the longitudinal strain localization in Al<sub>3</sub>Ti becomes more intense and the uniformity of transverse strain within each layer worsens. This causes the fracture mode of LMCs to shift from mainly interface delamination to primarily fracture of the intermetallic phase. This study offers a novel perspective for optimizing the mechanical properties of LMCs, promising to provide theoretical support and practical guidance for developing high-performance composites.</div></div>\",\"PeriodicalId\":56287,\"journal\":{\"name\":\"International Journal of Mechanical Sciences\",\"volume\":\"306 \",\"pages\":\"Article 110852\"},\"PeriodicalIF\":9.4000,\"publicationDate\":\"2025-09-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Mechanical Sciences\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0020740325009348\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Mechanical Sciences","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0020740325009348","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
Effect of Al content on the properties of Ti/Al3Ti/Al laminates
The fundamental relationship between residual aluminum volume fractions (RAVFs) and their effects on mechanical properties, local strain distribution, and microcrack formation patterns in Ti/Al3Ti/Al laminated metal composites (LMCs) remains unclear, which impedes progress in designing high-performance LMCs. This study designed a series of Ti/Al3Ti/Al LMCs with different RAVFs by adjusting the hot-pressing temperature. By combining high-resolution digital image correlation (HR-DIC) with in-situ X-ray micro-computed tomography (μCT), the mechanism by which RAVFs affect the mechanical properties, strain development, and crack initiation and propagation of LMCs has been clarified. The study revealed that the tensile strength initially increases and then decreases, culminating in a peak of 641 MPa at 25 % of RAVFs. However, the elongation exhibits a monotonic decrease from 3.5 % to 1.1 % as the concentration of RAVFs declines. In addition, it was found that as RAVFs decrease, the longitudinal strain localization in Al3Ti becomes more intense and the uniformity of transverse strain within each layer worsens. This causes the fracture mode of LMCs to shift from mainly interface delamination to primarily fracture of the intermetallic phase. This study offers a novel perspective for optimizing the mechanical properties of LMCs, promising to provide theoretical support and practical guidance for developing high-performance composites.
期刊介绍:
The International Journal of Mechanical Sciences (IJMS) serves as a global platform for the publication and dissemination of original research that contributes to a deeper scientific understanding of the fundamental disciplines within mechanical, civil, and material engineering.
The primary focus of IJMS is to showcase innovative and ground-breaking work that utilizes analytical and computational modeling techniques, such as Finite Element Method (FEM), Boundary Element Method (BEM), and mesh-free methods, among others. These modeling methods are applied to diverse fields including rigid-body mechanics (e.g., dynamics, vibration, stability), structural mechanics, metal forming, advanced materials (e.g., metals, composites, cellular, smart) behavior and applications, impact mechanics, strain localization, and other nonlinear effects (e.g., large deflections, plasticity, fracture).
Additionally, IJMS covers the realms of fluid mechanics (both external and internal flows), tribology, thermodynamics, and materials processing. These subjects collectively form the core of the journal's content.
In summary, IJMS provides a prestigious platform for researchers to present their original contributions, shedding light on analytical and computational modeling methods in various areas of mechanical engineering, as well as exploring the behavior and application of advanced materials, fluid mechanics, thermodynamics, and materials processing.