Songyi Chen

ORCID: 0000-0002-0329-5516
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About
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Research Areas
  • Aluminum Alloy Microstructure Properties
  • Microstructure and mechanical properties
  • Aluminum Alloys Composites Properties
  • Advanced Battery Materials and Technologies
  • Advancements in Battery Materials
  • Metallurgy and Material Forming
  • High Temperature Alloys and Creep
  • Advanced Welding Techniques Analysis
  • Metal and Thin Film Mechanics
  • Diamond and Carbon-based Materials Research
  • Magnesium Alloys: Properties and Applications
  • Advanced machining processes and optimization
  • Advanced Battery Technologies Research
  • Advanced battery technologies research
  • Chemical Synthesis and Characterization
  • Hydrogen Storage and Materials
  • Metal Forming Simulation Techniques
  • Corrosion Behavior and Inhibition
  • Welding Techniques and Residual Stresses
  • Hydrogen embrittlement and corrosion behaviors in metals
  • Microstructure and Mechanical Properties of Steels
  • Supercapacitor Materials and Fabrication
  • Bone Tissue Engineering Materials
  • Orthopaedic implants and arthroplasty
  • Semiconductor materials and devices

Central South University
2014-2024

State Key Laboratory of High Performance Complex Manufacturing
2020

The correlations among the corrosion behaviour, grain-boundary microchemistry, and Zn content in Al–Zn–Mg–Cu alloys were studied using stress cracking (SCC) intergranular (IGC) tests, combined with scanning electron microscopy (SEM) high-angle angular dark field transmission (HAADF-STEM) microstructural examinations. results showed that tensile strength enhancement of high Zn-containing was mainly attributed to density nano-scale matrix precipitates. SCC plateau velocity for alloy 11.0 wt.%...

10.1016/s1003-6326(21)65650-9 article EN Transactions of Nonferrous Metals Society of China 2021-08-01

Inhomogeneous microstructures and alloy chemistry along the thickness direction can greatly affect mechanical corrosion properties of new generation 7xxx aluminum thick plates. The inhomogeneous microstructure, stress cracking (SCC) resistance strength AA7085 plate (160 mm) at T/2, T/4, surface position using tests, double cantilever beam (DCB) crack extension tests electron microscopy experiments. results show that ultimate tensile strength, yield elongation T/2 are slightly lower than...

10.1016/j.jmrt.2024.05.045 article EN cc-by-nc-nd Journal of Materials Research and Technology 2024-05-01

To obtain accurate residual stresses in linear friction welding of TC17 alloy, a numerical relationship between the elastic constants and phase fraction alloy was established. The with gradient distribution were obtained by combining introduced into contour method. results show that are positively correlated α present significant area width about 4 mm. relative error calculating can be up to 36.06% if is ignored. corrected exhibit bimodal distribution, peak stress ∼442 MPa located at edge...

10.1016/s1003-6326(23)66390-3 article EN Transactions of Nonferrous Metals Society of China 2024-01-01

In this study, the continuous evolution of second-phase particles across as-cast, homogenization, multi-directional forging (MDF), and solution-aging treatment their effect on tensile fracture behavior 2219 aluminum alloys with different Cu contents was examined by optical microscopy (OM), scanning electron (SEM), tests. The results showed that microstructure as-cast alloy consisted α-Al matrix, Al2Cu coarse phase, Fe-rich impurity phase. Severe segregation existed, eutectic networks can be...

10.3390/met10020197 article EN cc-by Metals 2020-01-29
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