Paper Title:
Investigation of Homogenization Treatment in Al- Li- Cu- Zr Alloys
  Abstract

Aluminum-Lithium alloys were developed as major replacements for existing aluminum alloys to reduce the weight of aircraft and aerospace structures. Mechanical properties of Al-Li alloys greatly depend on solidification conditions. Other than reducing the microsegregation, homogenization treatment has other effects on the microstructure of Al-Li ingots. In this research, effects of homogenization treatment at constant temperature (500°C) on the precipitation in the microstructure of Al-1Li-3Cu-0.1Zr (wt %) and Al-2Li-3Cu- 0.1Zr (wt %) specimens have been investigated. Results show that homogenization at 500°C for 24 hours not only increases the hardness and phases precipitating in grain but also reduces microsegregation of Fe in grain boundaries.

  Info
Periodical
Defect and Diffusion Forum (Volumes 273-276)
Edited by
Andreas Öchsner and Graeme E. Murch
Pages
536-541
DOI
10.4028/www.scientific.net/DDF.273-276.536
Citation
A. Rezaei, S. Ahmadi, A. Shokuhfar, I. Foroutan, "Investigation of Homogenization Treatment in Al- Li- Cu- Zr Alloys", Defect and Diffusion Forum, Vols. 273-276, pp. 536-541, 2008
Online since
February 2008
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: Yong Lai Chen, Jin Feng Li, Yu Wei Zhang, Zi Qiao Zheng
Abstract:An Al-3.43Cu-1.28Li-0.49Mg-0.12Zr containing 0.62Zn and 0.29Mn was designed and the microstructures and mechanical properties of the alloy...
995
Authors: Shahram Ahmadi, Ali Shokuhfar, S.M.M. Hadavi, Arash Rezaei, H. Azimi
Abstract:In the present study, solidification and segregation of Al-Li-Cu-Zr alloys have been investigated. Results show that shape of ingots and...
15
Authors: Shahram Ahmadi, Ali Shokuhfar, Arash Rezaei
Abstract:To respond the need of industries to the new materials with higher specific modulus and lower density than those of the older Al alloys,...
18
Authors: Bilal Ahmed, Su Jun Wu
Chapter 1: Materials and Their Application
Abstract:Significant advantages in weight reduction and increased strength have place advanced aluminum-lithium alloys at forefront of aerospace...
104
Authors: Piotr Osuch, Monika Walkowicz, Tadeusz Knych, Andrzej Mamala
Chapter 6: Production Technologies of Non-Ferrous Metals
Abstract:Due to specific application of the Zn-Cu-Ti alloy rolled sheets as a roofing material, ready-made sheets has to meet some specific...
380