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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Environmentally Assisted Cracking: Theory and Practice
Presentation Title Effect of Mechanical Stresses on the Pitting Corrosion Behavior of an Al7075 Alloy
Author(s) Scott Andrew Turnage, Ilaksh Adlakha, Amm Hasib, Sridhar Niverty, Nikhilesh Chawla, Kiran N Solanki
On-Site Speaker (Planned) Scott Andrew Turnage
Abstract Scope Lightweight alloys such as Al7075 are regularly used in aviation due to their excellent mechanical performance with minimal weight penalty. However, in the saline environments experienced by naval aircraft, microstructural heterogeneities in the Al7075 alloy make it susceptible to corrosion damage thereby compromising the structural integrity. Therefore, in this work, the effect of mechanical loading on the pitting corrosion behavior of Al7075 alloy at various pre-strained levels and different chloride concentrations will be discussed with the help of cyclic polarization curves along with ex situ X-ray tomography. Further, the susceptibility of pitting corrosion and re-passivation under increasing chloride concentrations and mechanical load will be discussed. The study will be complemented with corrosion morphology analysis using ex situ X-ray tomography to provide insights into the 3-D microstructural influence on the growth of pits. Overall, the electrochemical behavior under conditions promoting stress corrosion cracking will be determined.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

3D Microstructural and Electrochemical Characterization of Galvanic Corrosion in Al7075-T651/316 Stainless Steel Couples
Assessing the Fracture Strength of Geological and Related Materials via an Atomistically Based J-integral
Atomic Insights on Hydrogen Embrittlement in Iron
Challenges and Recent Progress in High Fluence Irradiation Assisted Stress Corrosion Cracking
Consequence of Hydrogen Desorption on Local Mechanical Properties and the Fracture Mechanisms of a Martensitic Steel
Correlating Grain Boundary Microchemistry in Austenitic Stainless Steels with Their Susceptibility to Irradiation-assisted Stress Corrosion Cracking
Corrosion of Nickel-Titanium, C110, and Al6061 in Gallium-based Liquid Metal Alloys
Crack Growth Prediction for Stress Corrosion Cracking and Corrosion Fatigue of Irradiated Stainless Steels
Design of Nickel Alloys and Superalloys with a High Resistance to Hydrogen Embrittlement
Diffusion, Trapping Mechanisms and Some Implications on Local Approach of Fracture in Martensitic Steel
Direct Observations of Corrosion Cracking in a TEM
Effect of Chemical Composition on Embrittlement of High Manganese TWIP Steel
Effect of Mechanical Stresses on the Pitting Corrosion Behavior of an Al7075 Alloy
Effects of Internal and External Hydrogen Environments on Crack Growth in an Iron Based Superalloy
Effects of Trace Impurities on the Strength and Fracture of Hydrogen-Charged Ni-201
Environmentally Assisted Cracking of Commercial Carbon Steels and Corrosion Resistant Alloys
Environmentally Assisted Stress Corrosion Cracking of 5xxx Al Alloys in Atmospheric Environments
Factors Causing Hydrogen Embrittlement of Cold-drawn Pearlitic Steel Fractured under Elastic/Plastic Region
Factors Governing Hydrogen-Assisted Intergranular Cracking: Ni as a Model System
Fundamental Mechanisms of Mitigating Stress Corrosion Cracking of Austenitic Stainless Steels by Laser Shock Peening
Hydrogen-Induced Fracture: From Fundamentals to Prognosis
Hydrogen Embrittlement and Hydrogen-enhanced Strain-induced Vacancies in α-iron
Hydrogen Embrittlement and Stress Corrosion Cracking as Examples of the Chemomechanics of Solids
Hydrogen Embrittlement Mediated by Reaction between Dislocation and Grain Boundary in Iron
Intergranular Hydrogen Embrittlement: Hydrogen Diffusion in Nickel Singles Crystals and Bi-crystals
L-65: High Pressure Hydrogen Embrittlement of Fe-30Mn-0.2C-(1.5)Al High-Mn Steel
L-66: The Characterization of Grain Boundary Precipitates in Aluminum-Magnesium Alloys at Mildly Elevated Temperatures
L-67: The Influence of Global Slip Behavior on Hydrogen Environment-Assisted Cracking in Monel K-500
Linking Hydrogen-enhanced Plasticity to Hydrogen-induced Failure Mode
Macro- and Micro-scale Study of Hydrogen Susceptibility of Advanced High Strength Sheet Steels
Modeling Corrosion Damage and Crack Propagation Using Novel Meshless Peridynamics Framework
Peridynamic Modeling of Autonomous Lacy Cover Formation and of SCC
Quantification of Hydrogen-Metal Interactions in Engineering Alloys in Confined Spaces: Challenges and Opportunities
Relationships between the Galvanic Driving Force and Strain Energy Density Accumulation
Role of Hydrogen on Metal Plasticity: An Ab-Initio Study
Sensitization Effects on Environmentally Assisted Cracking of Al-Mg Alloys
Sensitization Effects on Tensile Behavior in 5XXX Series Aluminum Alloys: Macro- and Mesoscale Observations
Stacking Fault Energy Based Alloy Identification for Hydrogen Compatibility
Strain Rate Effects on the Stress Corrosion Cracking Behavior of Ni and Co Based Superalloys for Marine Applications
Stress-corrosion Cracking in Ti-8Al-1Mo-1V
Structural and Mechanical Characterization of Corroded Region in 7075 Aluminum (Al) Alloy
The Effect of Composition, Temper, and Crack Orientation on the Stress Corrosion Cracking Behavior of Al-Mg Alloys
The Effect of Microstructural Variation on Hydrogen Environment-Assisted Cracking Susceptibility of Monel K-500
The Effects of Alloy Chemistry on Localized Corrosion of Austenitic Stainless Steels
The Importance of Radiation and Deformation in Environmentally Assisted Cracking
The Role of Hydrogen-enhanced Strain-induced Lattice Defects on Hydrogen Embrittlement Susceptibility of X80 Pipeline Steel

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