ProgramMaster Logo
Conference Tools for MS&T22: Materials Science & Technology
Login
Register as a New User
Help
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting MS&T22: Materials Science & Technology
Symposium Development in Light Weight Alloys and Composites
Presentation Title Designing Al-Cu Alloy to Improve the Mechanical Properties and Thermal Stability via Micro-alloying with Cr Solute
Author(s) Gihoon Moon, Eunkyung Lee
On-Site Speaker (Planned) Gihoon Moon
Abstract Scope The refinement and thermal stability of metastable θ' precipitates are critical in the development of new high-performance Al-Cu alloys for elevated temperature applications. In this work, the micro-alloying influences of Cr on the aging behavior and thermal stability of Al-Cu alloy were systematically studied. The results showed that the addition of Cr can increase the strength during artificial aging and effectively improved the thermal stability of θ’ during prolonged thermal exposure. This is because the enhanced precipitation kinetic and microstructural stabilization arise from the segregation mechanism of Cr at the Al/ θ' semi-coherent interfaces. Especially, the Cr-segregation at the interface is essential to improve the coarsening resistance of θ' by acting as a kinetic diffusion barrier. This study reveals how the micro-alloying of Cr solute can work in concert to a stabilization mechanism, and the results provide insights that can be contributed to the design of high-temperature alloy.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Data-driven Search and Analysis for Selection of Ti-containing High Entropy Alloys for Aeroengine Applications
Correlations between Ultrasonic Processing, Reinforcement Morphology, and Multi-scale Mechanical Performance of Metal Matrix Composites
Delayed Aging in Aluminum Alloys
Designing Al-Cu Alloy to Improve the Mechanical Properties and Thermal Stability via Micro-alloying with Cr Solute
Development and Research of a Scandium-containing Filler for Welding Aircraft Products from an Alloy of the Mg-Zr-Nd System
Development of Functionally Graded Al Metal Matrix Hybrid Composite Reinforced with CNT ,Y2O3 & SiC through PM Route
Development of Hierarchical Aluminum-based Metal Matrix Composites Using Friction Extrusion
Effect of Tin Addition on Mechanical and Corrosion Behavior of Mg-Zn-Si Alloy
Enhancing the Strength of Al-B4C Composites
Friction Stir Processing Based Local Microstructure Modification to Improve High-cycle Fatigue Properties of High-pressure Die-cast Aluminum Alloy
Improving the Strength of AlCoCrNi Dual-phase High-entropy Alloy through ChemicalTtransformation
Influence of Alkaline Earth Metals on Structure Formation and Magnesium Alloys Properties
Investigating Solid Solution Formation in High Entropy Carbide-based Ceramics
Investigation of the Residual Stress on AlSi10MnMg Alloy with Various Grain Size
Laser Powder Bed Fusion of Highly-reinforced Aluminum Composite Powders Produced by Mechanical Alloying
Novel Materials Discovery on Li-Based Compounds Using Machine Learning
Recent Developments in Flux-Free Brazing of Aluminum Alloys
Selective Reinforcement of Structures Using Fiber Reinforced Aluminum
Self-assembly and In-situ X-ray Diffraction Characterization of Two-dimensional Ti3C2Tx MXene in Al Matrices for Additive Manufacturing
Single and Double Core-Shell Nanocomposite Bulk Ceramics in the Y2O3-ZrO2-Al2O3 System
Solute Synergy Improved Thermal Stability of Nanotwinned Al Alloys
The Effect of Si on Tungsten Aluminide Formation and Growth
The Role of Mo and Ti in Strengthening Mechanical Properties of the AlCrFeNi Eutectic High Entropy Alloys
Ultrasonically-Induced Microstructural Refinement to Improve Strength of an Al-Si-Mg Casting
Understanding the Influence of Yield Asymmetry on Sheet Metal Bendability of Magnesium Alloys

Questions about ProgramMaster? Contact programming@programmaster.org