𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The effect of applied tensile stress on the exfoliation corrosion of 7075-T6 alloy

✍ Scribed by J. Su; Z. Zhang; Y. Shi; Z. Yang; J. Zhang; C. Cao

Publisher
John Wiley and Sons
Year
2006
Tongue
German
Weight
298 KB
Volume
57
Category
Article
ISSN
0947-5117

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The effect of the applied tensile stress on the exfoliation corrosion of 7075‐T6 alloy in EXCO solution has been studied. Electrochemistry Impedance Spectroscopy (EIS), Scanning Electron Microscope (SEM) and optical microscope techniques were used to characterize the initiation and propagation of the exfoliation corrosion (EC) under different applied tensile stress levels. Two equivalent circuit models were developed to fit the EIS data of the initiation and propagation stages of EC according to their corresponding physicochemical properties respectively. The correlation between the characteristics of EIS evolution and the localized corrosion types was established, and a new criteria for detecting the initiation of EC of aluminum alloys was brought forward. The results also showed that the tensile stress accelerates EC by increasing the number of the active sites during its initiation stage.

πŸ“œ SIMILAR VOLUMES

Effect of aging time and temperature on
Effect of aging time and temperature on exfoliation corrosion of aluminum alloys 2024-T3 and 7075-T6
✍ F. M. Khoshnaw; R. H. Gardi πŸ“‚ Article πŸ“… 2007 πŸ› John Wiley and Sons 🌐 German βš– 141 KB πŸ‘ 1 views

## Abstract Two types of aluminum alloys, 2024‐T3 and 7075‐T6, have been selected in this study to investigate the effect of metallurgical aspects on exfoliation corrosion. To determine and evaluate the metallurgical effects of heat treatments on corrosion behaviour of these alloys, G34 ASTM test w

Effect of thermal exposure on the micros
Effect of thermal exposure on the microstructure, tensile properties and the corrosion behaviour of 6061 aluminium alloy sheet
✍ R. Braun πŸ“‚ Article πŸ“… 2005 πŸ› John Wiley and Sons 🌐 German βš– 464 KB πŸ‘ 1 views

## Abstract Sheet material of the Al‐Mg‐Si alloy 6061 in the tempers T4 and T6 was thermally exposed at temperatures ranging from 85 to 120Β°C for 1000 h. The microstructure, tensile properties and the corrosion behaviour in the different heat treatment conditions were investigated using differentia