On the stress corrosion cracking behaviour of 6XXX series aluminium alloys
-
Reinhold Braun
Abstract
The stress corrosion cracking behaviour of 6061 and 6013 sheet materials was investigated in naturally aged and peak-aged heat treatment conditions. Constant deformation, constant load and constant extension rate tests were carried out using aqueous solutions of 0.6 M NaCl and 0.6 M NaCl + 0.06 M NaHCO3. The microstructure of the alloys was examined using transmission electron microscopy. Potentiodynamic polarisation measurements were performed in aerated and deaerated aqueous chloride and/or bicarbonate solutions to determine corrosion and breakdown potentials. Under constant deformation and constant load conditions, the alloys 6061 and 6013 stressed in transverse direction were resistant to stress corrosion cracking in both T4 and T6 tempers. The constant extension rate testing technique indicated environment-induced cracking with alloy 6061-T4, whereas deterioration in ductility of the other alloys was caused by pitting and intergranular corrosion. Sensitivity to intergranular corrosion did not cause stress corrosion cracking in 6013-T6 sheet.
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Articles in the same Issue
- Contents
- Contents
- Editorial
- Prof. Dr. Monika Feller-Kniepmeier 80th birthday
- Basic
- Model calculation of inoculation and experimental verification in two alloy-systems
- Enrichment of boron at grain boundaries of platinum-based alloys determined by electron energy loss spectroscopy in a transmission electron microscope
- Measurement of the lattice misfit of Pt–Al–Cr superalloy by convergent beam electron diffraction (CBED)
- Microstructural and micromechanical characterisation of a Pt–Al–Cr–Ni–Re alloy by means of transmission electron microscopy and nanoindentation
- X-ray reflections from the γ/γ′-microstructure of nickel-base superalloys: effect of the plane tilting
- Physicochemical properties and creep strength of a single crystal of nickel-base superalloy containing rhenium and ruthenium
- Interdependence between glass stability and phase formation sequence during crystallization of Zr46.8Ti8.2Cu7.5Ni10Be27.5 bulk glass
- On the formation of λ-MnAl4
- Applied
- Development of Ni–Mn-based alloys for the fast epitaxial braze-repair of single-crystalline nickel-based superalloys
- Influence of heat treatment and microstructure on the tensile pseudoelastic response of an Ni-rich NiTi shape memory alloy
- Microstructural stability of an Ni–Mo based Hastelloy after 10 MeV electron irradiation at high temperature
- Oxidation behaviour of TiAl-based intermetallic coatings on γ-TiAl alloys
- Oxidation and fatigue behaviour of γ-TiAl coated with HIPIMS CrAlYN/CrN nanoscale multilayer coatings and EB-PVD thermal barrier coatings
- On the stress corrosion cracking behaviour of 6XXX series aluminium alloys
- Investigation of surface film nanostructure and assessment of its impact on friction force stabilization during automotive braking
- Creep strength of a binary Al62Ti38 alloy
- Bowing out of a dislocation from wall of persistent slip bands (PSB)
- Effect of martensite volume fraction on mechanical properties of dual-phase treated AISI-4012 sheet steels
- The joint properties of dissimilar aluminum plates joined by friction stir welding
- Notification
- DGM News
Articles in the same Issue
- Contents
- Contents
- Editorial
- Prof. Dr. Monika Feller-Kniepmeier 80th birthday
- Basic
- Model calculation of inoculation and experimental verification in two alloy-systems
- Enrichment of boron at grain boundaries of platinum-based alloys determined by electron energy loss spectroscopy in a transmission electron microscope
- Measurement of the lattice misfit of Pt–Al–Cr superalloy by convergent beam electron diffraction (CBED)
- Microstructural and micromechanical characterisation of a Pt–Al–Cr–Ni–Re alloy by means of transmission electron microscopy and nanoindentation
- X-ray reflections from the γ/γ′-microstructure of nickel-base superalloys: effect of the plane tilting
- Physicochemical properties and creep strength of a single crystal of nickel-base superalloy containing rhenium and ruthenium
- Interdependence between glass stability and phase formation sequence during crystallization of Zr46.8Ti8.2Cu7.5Ni10Be27.5 bulk glass
- On the formation of λ-MnAl4
- Applied
- Development of Ni–Mn-based alloys for the fast epitaxial braze-repair of single-crystalline nickel-based superalloys
- Influence of heat treatment and microstructure on the tensile pseudoelastic response of an Ni-rich NiTi shape memory alloy
- Microstructural stability of an Ni–Mo based Hastelloy after 10 MeV electron irradiation at high temperature
- Oxidation behaviour of TiAl-based intermetallic coatings on γ-TiAl alloys
- Oxidation and fatigue behaviour of γ-TiAl coated with HIPIMS CrAlYN/CrN nanoscale multilayer coatings and EB-PVD thermal barrier coatings
- On the stress corrosion cracking behaviour of 6XXX series aluminium alloys
- Investigation of surface film nanostructure and assessment of its impact on friction force stabilization during automotive braking
- Creep strength of a binary Al62Ti38 alloy
- Bowing out of a dislocation from wall of persistent slip bands (PSB)
- Effect of martensite volume fraction on mechanical properties of dual-phase treated AISI-4012 sheet steels
- The joint properties of dissimilar aluminum plates joined by friction stir welding
- Notification
- DGM News