{"title":"控制时效处理提高SiCw增强Al-Zn-Mg-Cu复合材料的力学性能和耐蚀性","authors":"Tian Han, Xiaojing Xu, Shuaidi Li","doi":"10.1134/S2070205125701059","DOIUrl":null,"url":null,"abstract":"<p>In this study, a high-performance aluminum matrix composite reinforced with SiC whiskers (SiC<sub>w</sub>), exhibiting excellent mechanical properties and outstanding corrosion resistance, was successfully fabricated. The composite was prepared via ball-milling, hot isostatic pressing (HIP), solution treatment, and aging. It was observed that the coherent interface structure of SiC<sub>w</sub>/MgAl<sub>2</sub>O<sub>4</sub>/Al enhanced the bonding between the particles and the matrix. In the T4 aging state, the composite demonstrated superior properties, with an elastic modulus of 104.9 GPa, a yield strength of 629.2 MPa, and an ultimate tensile strength of 680.6 MPa. Aging treatment facilitated Mg migration to MgAl<sub>2</sub>O<sub>4</sub>, reducing the Mg content in the matrix and consequently decreasing the composite’s strength. The T6I4 aging process promoted the transformation of precipitates from GP zones + η' (T4) to η + η' (T6I4). Post T6I4 aging, the grain boundaries were remarkably clean, free of aging precipitates and O element segregation. Additionally, the galvanic corrosion current density in 3.5 wt % NaCl solution was as low as 9.05 × 10<sup>–8</sup> A cm<sup>–2</sup>, indicating excellent corrosion resistance.</p>","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"61 6","pages":"1362 - 1373"},"PeriodicalIF":0.8000,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhancement of Mechanical Properties and Corrosion Resistance in SiCw Reinforced Al–Zn–Mg–Cu Composites via Controlled Aging Treatments\",\"authors\":\"Tian Han, Xiaojing Xu, Shuaidi Li\",\"doi\":\"10.1134/S2070205125701059\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>In this study, a high-performance aluminum matrix composite reinforced with SiC whiskers (SiC<sub>w</sub>), exhibiting excellent mechanical properties and outstanding corrosion resistance, was successfully fabricated. The composite was prepared via ball-milling, hot isostatic pressing (HIP), solution treatment, and aging. It was observed that the coherent interface structure of SiC<sub>w</sub>/MgAl<sub>2</sub>O<sub>4</sub>/Al enhanced the bonding between the particles and the matrix. In the T4 aging state, the composite demonstrated superior properties, with an elastic modulus of 104.9 GPa, a yield strength of 629.2 MPa, and an ultimate tensile strength of 680.6 MPa. Aging treatment facilitated Mg migration to MgAl<sub>2</sub>O<sub>4</sub>, reducing the Mg content in the matrix and consequently decreasing the composite’s strength. The T6I4 aging process promoted the transformation of precipitates from GP zones + η' (T4) to η + η' (T6I4). Post T6I4 aging, the grain boundaries were remarkably clean, free of aging precipitates and O element segregation. Additionally, the galvanic corrosion current density in 3.5 wt % NaCl solution was as low as 9.05 × 10<sup>–8</sup> A cm<sup>–2</sup>, indicating excellent corrosion resistance.</p>\",\"PeriodicalId\":745,\"journal\":{\"name\":\"Protection of Metals and Physical Chemistry of Surfaces\",\"volume\":\"61 6\",\"pages\":\"1362 - 1373\"},\"PeriodicalIF\":0.8000,\"publicationDate\":\"2026-02-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Protection of Metals and Physical Chemistry of Surfaces\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S2070205125701059\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Protection of Metals and Physical Chemistry of Surfaces","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S2070205125701059","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
Enhancement of Mechanical Properties and Corrosion Resistance in SiCw Reinforced Al–Zn–Mg–Cu Composites via Controlled Aging Treatments
In this study, a high-performance aluminum matrix composite reinforced with SiC whiskers (SiCw), exhibiting excellent mechanical properties and outstanding corrosion resistance, was successfully fabricated. The composite was prepared via ball-milling, hot isostatic pressing (HIP), solution treatment, and aging. It was observed that the coherent interface structure of SiCw/MgAl2O4/Al enhanced the bonding between the particles and the matrix. In the T4 aging state, the composite demonstrated superior properties, with an elastic modulus of 104.9 GPa, a yield strength of 629.2 MPa, and an ultimate tensile strength of 680.6 MPa. Aging treatment facilitated Mg migration to MgAl2O4, reducing the Mg content in the matrix and consequently decreasing the composite’s strength. The T6I4 aging process promoted the transformation of precipitates from GP zones + η' (T4) to η + η' (T6I4). Post T6I4 aging, the grain boundaries were remarkably clean, free of aging precipitates and O element segregation. Additionally, the galvanic corrosion current density in 3.5 wt % NaCl solution was as low as 9.05 × 10–8 A cm–2, indicating excellent corrosion resistance.
期刊介绍：
Protection of Metals and Physical Chemistry of Surfaces is an international peer reviewed journal that publishes articles covering all aspects of the physical chemistry of materials and interfaces in various environments. The journal covers all related problems of modern physical chemistry and materials science, including: physicochemical processes at interfaces; adsorption phenomena; complexing from molecular and supramolecular structures at the interfaces to new substances, materials and coatings; nanoscale and nanostructured materials and coatings, composed and dispersed materials; physicochemical problems of corrosion, degradation and protection; investigation methods for surface and interface systems, processes, structures, materials and coatings. No principe restrictions exist related systems, types of processes, methods of control and study. The journal welcomes conceptual, theoretical, experimental, methodological, instrumental, environmental, and all other possible studies.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
