Fuyuan Liu , Guantao Wang , Enyu Guo , Zhirou Zhang , Zongning Chen , Huijun Kang , Yanjin Xu , Tongmin Wang
{"title":"均质化后铝铜锂合金自然时效的析出行为","authors":"Fuyuan Liu , Guantao Wang , Enyu Guo , Zhirou Zhang , Zongning Chen , Huijun Kang , Yanjin Xu , Tongmin Wang","doi":"10.1016/j.vacuum.2024.113878","DOIUrl":null,"url":null,"abstract":"<div><div>The effects of natural aging (NA) on microstructure and mechanical properties of as-homogenized Al-4.1Cu-1.3Li-0.4Mg-0.4Ag-0.3Mn-0.5Zn-0.1Zr alloy are investigated in this work. The results show that the alloy exhibits a strong NA response attributed to a plethora of GP-Li zones and δ′ precipitated during the initial 3 days which provides nucleation sites for the T<sub>1</sub> phase. After 15 days, the mechanical properties dramatically enhance due to the precipitation of the saturated GP-Li zones, δ′, and T<sub>1</sub> phases. The yield strength, ultimate tensile strength, and fracture elongation reach 316 MPa, 469 MPa, and 14 % after NA for 15 days, respectively.</div></div>","PeriodicalId":23559,"journal":{"name":"Vacuum","volume":"232 ","pages":"Article 113878"},"PeriodicalIF":4.3000,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The precipitation behavior of natural aging for Al-Cu-Li alloy after homogenization\",\"authors\":\"Fuyuan Liu , Guantao Wang , Enyu Guo , Zhirou Zhang , Zongning Chen , Huijun Kang , Yanjin Xu , Tongmin Wang\",\"doi\":\"10.1016/j.vacuum.2024.113878\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The effects of natural aging (NA) on microstructure and mechanical properties of as-homogenized Al-4.1Cu-1.3Li-0.4Mg-0.4Ag-0.3Mn-0.5Zn-0.1Zr alloy are investigated in this work. The results show that the alloy exhibits a strong NA response attributed to a plethora of GP-Li zones and δ′ precipitated during the initial 3 days which provides nucleation sites for the T<sub>1</sub> phase. After 15 days, the mechanical properties dramatically enhance due to the precipitation of the saturated GP-Li zones, δ′, and T<sub>1</sub> phases. The yield strength, ultimate tensile strength, and fracture elongation reach 316 MPa, 469 MPa, and 14 % after NA for 15 days, respectively.</div></div>\",\"PeriodicalId\":23559,\"journal\":{\"name\":\"Vacuum\",\"volume\":\"232 \",\"pages\":\"Article 113878\"},\"PeriodicalIF\":4.3000,\"publicationDate\":\"2025-02-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Vacuum\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0042207X24009242\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2024/11/24 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Vacuum","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0042207X24009242","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/11/24 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
The precipitation behavior of natural aging for Al-Cu-Li alloy after homogenization
The effects of natural aging (NA) on microstructure and mechanical properties of as-homogenized Al-4.1Cu-1.3Li-0.4Mg-0.4Ag-0.3Mn-0.5Zn-0.1Zr alloy are investigated in this work. The results show that the alloy exhibits a strong NA response attributed to a plethora of GP-Li zones and δ′ precipitated during the initial 3 days which provides nucleation sites for the T1 phase. After 15 days, the mechanical properties dramatically enhance due to the precipitation of the saturated GP-Li zones, δ′, and T1 phases. The yield strength, ultimate tensile strength, and fracture elongation reach 316 MPa, 469 MPa, and 14 % after NA for 15 days, respectively.
期刊介绍：
Vacuum is an international rapid publications journal with a focus on short communication. All papers are peer-reviewed, with the review process for short communication geared towards very fast turnaround times. The journal also published full research papers, thematic issues and selected papers from leading conferences.
A report in Vacuum should represent a major advance in an area that involves a controlled environment at pressures of one atmosphere or below.
The scope of the journal includes:
1. Vacuum; original developments in vacuum pumping and instrumentation, vacuum measurement, vacuum gas dynamics, gas-surface interactions, surface treatment for UHV applications and low outgassing, vacuum melting, sintering, and vacuum metrology. Technology and solutions for large-scale facilities (e.g., particle accelerators and fusion devices). New instrumentation ( e.g., detectors and electron microscopes).
2. Plasma science; advances in PVD, CVD, plasma-assisted CVD, ion sources, deposition processes and analysis.
3. Surface science; surface engineering, surface chemistry, surface analysis, crystal growth, ion-surface interactions and etching, nanometer-scale processing, surface modification.
4. Materials science; novel functional or structural materials. Metals, ceramics, and polymers. Experiments, simulations, and modelling for understanding structure-property relationships. Thin films and coatings. Nanostructures and ion implantation.
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