Paper Title:
The Effect of Texture on the Serrated Flow in Peak-Aged 2090 Al-Li Alloy
  Abstract

Tensile specimens cut from the surface layer to the center layer of a 12.7 mm thick 2090 Al-Li alloy plate were solution treated at 550°C for 30 min and subsequently peak-aged at 190°C for 18 h. They were tensile tested along the rolling direction at 25°C at various strain rates. The solution-treated specimens gave rise to serrated flows at a strain rate of 2×10-4 s-1. On the other hand, for the peak-aged alloy, the surface-layer and subsurface-layer specimens underwent complex, serrated flows (fine and coarse types superimposed each other), whereas the center-layer and near-center-layer specimens were devoid of serrated flows. The textures of the surface-layer and subsurface-layer specimens were approximated by the {001}<110> orientation, while those of the center-layer and near-center-layer specimens were approximated by the {011}<211> orientation. The different flow behaviors were discussed based on the crystallographic textures, microstructures and the strain rates.

  Info
Periodical
Solid State Phenomena (Volume 105)
Edited by
C. Esling, M. Humbert, R.A. Schwarzer and F. Wagner
Pages
227-232
DOI
10.4028/www.scientific.net/SSP.105.227
Citation
Y. Z. Shen, K. H. Oh, D. N. Lee, "The Effect of Texture on the Serrated Flow in Peak-Aged 2090 Al-Li Alloy", Solid State Phenomena, Vol. 105, pp. 227-232, 2005
Online since
July 2005
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: Mahesh C. Chaturvedi, Dao Lun Chen
Abstract:The effect of welding, heat-affected zone (HAZ) simulation, and specimen orientation on the microstructure and fatigue properties of 2195...
147
Authors: Yin Zhong Shen, Kyu Hwan Oh, Dong Nyung Lee
Abstract:Flow behavior of the surface and center layers of solution-treated, peak-aged, or reversion-treated 2090 Al-Li alloy specimens has been...
157
Authors: Zhi Long Zhao, Zheng Chen, Lin Liu
Abstract:The critical resolved stresses (CRSS) of two kinds of Al-Li alloys 2090 and 2090+Ce in which contained trace addition of cerium are examined....
496
Authors: Yin Zhong Shen
Chapter 2: Materials Science and Applications, Materials Processing Technology
Abstract:Serration behavior of 2090 Al-Li alloy was studied by tensile test combined with modifying the structure of δ-precipitates through reversion...
313
Authors: Chun Ping Fan, Zi Qiao Zheng, Min Jia, Ji Fa Zhong, Bin Cheng
Abstract:The microstructure, tensile property and fracture toughness of Al-Li alloy 2397-T87 rolled plate were investigated by optical microscopy,...
249