ProgramMaster Logo
Conference Tools for Materials Science & Technology 2020
Login
Register as a New User
Help
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting Materials Science & Technology 2020
Symposium Thermodynamic Properties, Structure and Phase Stabilities of Special Alloys
Presentation Title Deformation Induced Precipitation in Microalloyed Al-Cu
Author(s) Roman Schuster, Tomasz Wojcik, Erwin Povoden-Karadeniz
On-Site Speaker (Planned) Roman Schuster
Abstract Scope Alloying aluminum with Cu leads to an enhancement of mechanical properties compared to pure aluminum through the formation of intermetallic precipitates during aging treatment. To minimize costs, a reduced Cu concentration compared to 4 wt% in the 2000 alloy series, while still retaining enhanced mechanical strength, may be preferred for many applications. In this communication we report on the precipitation of CuAl2 θ from a solid solution with less than 1 wt% Cu through processing involving severe plastic deformation. Deformation by high pressure torsion at room temperature and 150C leads to ultra-fine grained microstructures with grain sizes well below 500 nm at room temperature and about 500 nm at 150C. TEM analysis reveals the formation of 10-40 nm sized CuAl2 θ precipitates at triple points and Cu enrichment at grain boundaries. Furthermore, the grain interiors exhibit a heterogeneous Cu distribution in the nano-scale showing lamellar regions with enhanced Cu concentration.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Deformation Induced Precipitation in Microalloyed Al-Cu
Depiction of Electro-optical Characteristics in CdSexTe1-x by Curbing Content And Short-Range Pattern
Determination of the Activation Energy of the Formation of Intermetallic Compounds in the Ni-Al and Ti-Al System Upon Receipt of Special Alloys
Examining the Oxidation in NiAl Binary Alloys Using Cellular Automata
Interdiffusion in Ternary Ti-Al-Mo System and Its Application during Homogenization Treatment
Introductory Comments: Thermodynamic Properties, Structure and Phase Stabilities of Special Alloys
Sodium Pnictogen Chalcogenides for Thermoelectric and Photovoltaic Applications
Thermal Decomposition of Quasicrystals in Powder-processed Icosahedral-Phase-strengthened Aluminum Alloys
Thermodynamic Modeling of the Ga-Mn-Ni System for Heusler Alloy Development
Thermodynamic Properties of Special Alloys of the Ti-Al System Formed under SHS Conditions

Questions about ProgramMaster? Contact programming@programmaster.org