Suyu Wang , Wenquan Wang , Yuhua Chen , Xinge Zhang , Shanlin Wang , Timing Zhang , Yuxin Xu
{"title":"界面硅烷膜和激光织构对Al/CFRTP搅拌摩擦焊接接头连接特性的协同作用","authors":"Suyu Wang , Wenquan Wang , Yuhua Chen , Xinge Zhang , Shanlin Wang , Timing Zhang , Yuxin Xu","doi":"10.1016/j.matdes.2025.114774","DOIUrl":null,"url":null,"abstract":"<div><div>Driven by lightweight requirements in the low-altitude economy, a synergistic laser ablation‒silane coupling process was developed to optimize friction stir welded joints between Al alloys and carbon fiber-reinforced thermoplastics (CFRTPs), with a focus on elucidating the sequence-dependent gradient interfacial joining mechanism. A sequence involving silane coupling prior to laser ablation was employed, enabling dual-mode enhancement of the interfacial geometric configuration and chemical bonding. Mechanical interlocking was ensured in laser-ablated zones, whereas the chemical bonding capacity in unablated regions was enhanced. The tensile–shear strength and cross-tension strength of the joints were measured at 32.6 MPa and 3.2 MPa, respectively. Detailed microstructural characterization revealed that mechanical interlocking occurred in the laser-ablated zones of the PA66 resin and that synergistic physicochemical reinforcement was achieved via covalent Al‒O‒Si bonds coupled with molecular chain entanglement/hydrogen bonding in unablated regions. Defect-free continuous interfacial transitions were confirmed through the penetration of nanolamellar structures by amorphous silane films. This synergistic strategy provides new insights for the high-performance joining of dissimilar metal and polymer materials.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"259 ","pages":"Article 114774"},"PeriodicalIF":7.9000,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synergistic effect of interfacial silane film and laser texturing on joining characteristics of pretreated Al/CFRTP friction stir welded joints\",\"authors\":\"Suyu Wang , Wenquan Wang , Yuhua Chen , Xinge Zhang , Shanlin Wang , Timing Zhang , Yuxin Xu\",\"doi\":\"10.1016/j.matdes.2025.114774\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Driven by lightweight requirements in the low-altitude economy, a synergistic laser ablation‒silane coupling process was developed to optimize friction stir welded joints between Al alloys and carbon fiber-reinforced thermoplastics (CFRTPs), with a focus on elucidating the sequence-dependent gradient interfacial joining mechanism. A sequence involving silane coupling prior to laser ablation was employed, enabling dual-mode enhancement of the interfacial geometric configuration and chemical bonding. Mechanical interlocking was ensured in laser-ablated zones, whereas the chemical bonding capacity in unablated regions was enhanced. The tensile–shear strength and cross-tension strength of the joints were measured at 32.6 MPa and 3.2 MPa, respectively. Detailed microstructural characterization revealed that mechanical interlocking occurred in the laser-ablated zones of the PA66 resin and that synergistic physicochemical reinforcement was achieved via covalent Al‒O‒Si bonds coupled with molecular chain entanglement/hydrogen bonding in unablated regions. Defect-free continuous interfacial transitions were confirmed through the penetration of nanolamellar structures by amorphous silane films. This synergistic strategy provides new insights for the high-performance joining of dissimilar metal and polymer materials.</div></div>\",\"PeriodicalId\":383,\"journal\":{\"name\":\"Materials & Design\",\"volume\":\"259 \",\"pages\":\"Article 114774\"},\"PeriodicalIF\":7.9000,\"publicationDate\":\"2025-09-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials & Design\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0264127525011943\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials & Design","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0264127525011943","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Synergistic effect of interfacial silane film and laser texturing on joining characteristics of pretreated Al/CFRTP friction stir welded joints
Driven by lightweight requirements in the low-altitude economy, a synergistic laser ablation‒silane coupling process was developed to optimize friction stir welded joints between Al alloys and carbon fiber-reinforced thermoplastics (CFRTPs), with a focus on elucidating the sequence-dependent gradient interfacial joining mechanism. A sequence involving silane coupling prior to laser ablation was employed, enabling dual-mode enhancement of the interfacial geometric configuration and chemical bonding. Mechanical interlocking was ensured in laser-ablated zones, whereas the chemical bonding capacity in unablated regions was enhanced. The tensile–shear strength and cross-tension strength of the joints were measured at 32.6 MPa and 3.2 MPa, respectively. Detailed microstructural characterization revealed that mechanical interlocking occurred in the laser-ablated zones of the PA66 resin and that synergistic physicochemical reinforcement was achieved via covalent Al‒O‒Si bonds coupled with molecular chain entanglement/hydrogen bonding in unablated regions. Defect-free continuous interfacial transitions were confirmed through the penetration of nanolamellar structures by amorphous silane films. This synergistic strategy provides new insights for the high-performance joining of dissimilar metal and polymer materials.
期刊介绍:
Materials and Design is a multi-disciplinary journal that publishes original research reports, review articles, and express communications. The journal focuses on studying the structure and properties of inorganic and organic materials, advancements in synthesis, processing, characterization, and testing, the design of materials and engineering systems, and their applications in technology. It aims to bring together various aspects of materials science, engineering, physics, and chemistry.
The journal explores themes ranging from materials to design and aims to reveal the connections between natural and artificial materials, as well as experiment and modeling. Manuscripts submitted to Materials and Design should contain elements of discovery and surprise, as they often contribute new insights into the architecture and function of matter.