Paper Title:
Assessment of the Corrosion Behavior of a Sintered Al-Cu-Mg Alloy in Aeronautical Environments as a Function of the Heat Treatment
  Abstract

In the present work it has been studied the corrosion performance of a powder metallurgical aluminum alloy in aeronautical environments as a function of heat treatment. For this purpose an Al-Cu-Mg prealloyed powder was uniaxially pressed at 600 MPa followed by sintering at 590°C in nitrogen for 60 minutes. Subsequently sintered samples were heat treated to the T4 and T6 state. Corrosion behaviour was assessed by means of potentiodynamic polarization (PPT) in Dilute Harrison solution (DHS), which is considered to closely emulate the atmospheric environment for aircraft. PPT results for the equivalent wrought counterpart, AA2024 in its typical heat treatment for aeronautical applications T3, are also presented for comparison. The microstructure of each sample has been examined by Scanning Electron Microscopy (SEM) and Energy-Dispersive analysis of X-ray (EDX). Similar corrosion performance was observed for both the as sintered sample and its equivalent wrought counterpart, while corrosion resistance of the PM materials was improved by the heat treatment, especially in the T4 state.

  Info
Periodical
Materials Science Forum (Volumes 534-536)
Edited by
Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim
Pages
497-500
DOI
10.4028/www.scientific.net/MSF.534-536.497
Citation
S. Sánchez-Majado, J. M. Torralba, A. Jiménez-Morales, "Assessment of the Corrosion Behavior of a Sintered Al-Cu-Mg Alloy in Aeronautical Environments as a Function of the Heat Treatment", Materials Science Forum, Vols. 534-536, pp. 497-500, 2007
Online since
January 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Satoshi Sunada, Yukihiro Hosada, Tsutomu Yamamoto, Kazuhiko Majima
Abstract:Three cemented carbide specimens, i.e., WC-Co (Sample A), WC-Cr3C2-Co (Sample B) and WC-βt-Co (Sample C) in which βt indicates...
2147
Authors: Satoshi Sunada, Norio Nunomura, Kazuhiko Majima
Abstract:In this study, the electrochemical measurements such as the potentiodynamic polarization and the electrochemical impedance spectroscopy (EIS)...
1964
Authors: Konstantin V. Rybalka, Luiza A. Beketaeva, Vyacheslav S. Shaldaev, Nataliya G. Bukhan’ko, Alexey D. Davydov
Abstract:The anodic and cathodic reactions involved in the corrosion process on several nickel-aluminum alloys including two intermetallic compounds...
7
Authors: Bi Lan Lin, Yu Ye Xu, Wei Su
Chapter 7: Building Materials
Abstract:Phytic acid coatings were formed on AZ91D-Mg alloy during immersion in 5.0 g/L phytic acid solution for different time. The corrosion...
1653
Authors: Bi Lan Lin, Yu Ye Xu, Zhi Chuan Yuan
Chapter 7: Building Materials
Abstract:Phytic acid coatings were formed on 6063-Al alloy during immersion in phytic acid solution with various pH and phytic acid concentration for...
1634