Fuyuan Liu , Guantao Wang , Enyu Guo , Zhirou Zhang , Zongning Chen , Huijun Kang , Yanjin Xu , Tongmin Wang
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引用次数: 0
Abstract
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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