ProgramMaster Logo
Conference Tools for 2018 TMS Annual Meeting & Exhibition
Login
Register as a New User
Help
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Environmentally Assisted Cracking: Theory and Practice
Presentation Title Incorporating Detailed Experimental Grain Boundary β-phase (Mg2Al3) Observations to Improve Sensitization Modeling of Aluminum AA5XXX Alloys
Author(s) Matthew A. Steiner, Ruifeng Zhang, Nick Birbilis, Sean Agnew
On-Site Speaker (Planned) Matthew A. Steiner
Abstract Scope Several groups have proposed models using β-phase precipitation in AA5XXX alloys to predict the degree of sensitization, which contributes to stress corrosion cracking, but none have been able to account for the large variances observed between studies of nominally identical alloy compositions and tempers. Quantifying the size and distribution of β-phase precipitates on Ga-embrittled intergranular fracture surfaces, it is clear that some of the assumptions underpinning previous sensitization models need to be redressed. By applying Johnson-Mehl-Avarami-Kolmogorov (JMAK) theory to the impinging sensitized regions surrounding β-phase precipitates, the kinetic portion of AA5XXX sensitization can be modeled consistently across studies within an average R2 > 0.95. This suggests inter-sample variation in sensitization results largely from unaccounted microstructural features within the alloy-temper specification, imparted by the unique processing history of each sample and manifesting as a simple scaling factor in the JMAK model, for which several possible candidates will be discussed.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

3D Microstructural and Electrochemical Characterization of Accelerated Corrosion in Aluminum Alloys
Characterization of Stress Corrosion Cracking of 304 Stainless Steel Using High-energy Synchrotron X-ray Microtomography
Comparative Assessment of the Fracture Behaviour of API 5L X65 and Micro-alloyed Steels in E80 Simulated Fuel Ethanol Environment
Comparison of Hydrogen Introduction Techniques for In-situ TEM Straining Experiments
Correlative 3D Imaging of Iodine-induced Stress Corrosion Cracks in Zr Alloys
Corrosion Crack Propagation Modeling Using Meshless Peridynamics Approach
Cracking Behavior and Fracture Toughness of Irradiated Austenitic Stainless Steels in LWR Environments
Dealloying Induced Stress Corrosion Cracking
Dispelling Myths about Gaseous Hydrogen Environmental Fracture and Fatigue
EAC Behavior of Modified Duplex Stainless Steel Bars in Seawater
Effect of 3D Crystallographic Orientation and Microstructure on the Evolution of Corrosion in Aluminum Alloys
Effect of Frequency on Corrosion Fatigue Behavior of Steel 1.4016 in E85 Biofuel up to the Very High Cycle Fatigue Regime
Effect of Hydrogen on Ideal Shear Strength of Metals: An Ab-initio Study
Effect of Mechanical Deformation on the Corrosion Behavior in Al 7075 – Ti6Al4V Galvanic Joint
Electrochemical-mechanical Interactions in an Aluminum Alloy under Slow Strain Rate Stress Corrosion Cracking
Environment Induced Degradation in Maraging Steel Grade 18Ni1750
Environmental Cracking: Theory Depends on Practice
Evaluating the Effect of Sensitizing Time on the Hydrogen Embrittlement of Austenitic Stainless Steels
From First Discoveries in the Late 1800s to Mechanistic Understanding and Radiation Effects in the Early 2000s: Over 140 Years of Stress Corrosion Cracking Research
Fundamental Mechanisms of Preventing Stress Corrosion Cracking of Austenitic Alloys by Laser Shock Peening
Hydrogen-dislocation Interaction Revisited by Quantitative Mechanical Tests inside TEM
Hydrogen and Dislocation Assisted Grain Boundary Crack Initiation Mechanism
IASCC Behavior of Additively Manufactured 316L Stainless Steel in Light Water Reactor Environments
Incorporating Detailed Experimental Grain Boundary β-phase (Mg2Al3) Observations to Improve Sensitization Modeling of Aluminum AA5XXX Alloys
Influence of MC Carbides and γ’ on Hydrogen Trapping in Nickel Alloys and Superalloys: Experiment and Alloy Design
Mechanisms of High Temperature Stress Corrosion Crack Initiation in Austenitic Alloys
Metallurgical Factors and Changes Driving Susceptibly to Environment Assisted Cracking in Aluminum Alloys
Phase Field Modeling of Pitting & Crevice Corrosion
Role of Nitrogen on Hydride Nucleation and Stability in Pure Niobium by First-principles Calculations
SCC Property Evolution of X70 Pipeline Steel in Simulated Deep-sea Environments
Sensitization Effects on Tensile Behavior in 5XXX Series Aluminum Alloys: Environmentally Enhanced Cracking
The Effects of Grain Boundary Structure on the Intergranular Stress Corrosion Cracking Initiation Susceptibility of Alloy 690 in High Temperature Water
The Stress Corrosion Cracking Mechanism of a Cu-free Al-Zn-Mg Alloy in Sodium Chloride Solutions
Trapping against Hydrogen Embrittlement

Questions about ProgramMaster? Contact programming@programmaster.org