Paper Title:
Fatigue Crack Propagation in New Generation Aluminium Alloys
  Abstract

The fatigue crack propagation behaviour of a new third generation Al-Cu-Li alloy type 2050-T84 developed for aeronautical applications is studied in comparison to a new generation Al-Cu-Mg alloy type 2022-T851. The alloy resistance against crack growth is shown to depend on alloy composition, aging condition and atmosphere environment. The crack path and the growth rate at moderate DK and in the near-threshold domain are discussed in terms of the slip morphology with respect to the microstructure. The different crack propagation regimes, as identified by mean of micro-fractographic observations and EBSD analysis are discussed on the basis of a modelling framework elaborated for conventional metallic alloys.

  Info
Periodical
Key Engineering Materials (Volumes 488-489)
Edited by
Z. Tonković and M.H. Aliabadi
Pages
476-479
DOI
10.4028/www.scientific.net/KEM.488-489.476
Citation
S. Richard, C. Sarrazin-Baudoux, J. Petit, "Fatigue Crack Propagation in New Generation Aluminium Alloys", Key Engineering Materials, Vols. 488-489, pp. 476-479, 2012
Online since
September 2011
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: T.S. Srivatsan, Mithun Kuruvilla, Lisa Park
Abstract:In this technical manuscript the cyclic stress amplitude controlled fatigue properties and fracture behavior of an emerging titanium alloy...
271
Authors: Bao Hong Zhu, Bai Qing Xiong, Yon Gan Zhang, Udo Fritsching, Ji Shan Zhang, Feng Wang, Zhi Hui Li, Hong Wei Liu
Abstract:A high Zn content Al-Zn-Mg-Cu alloy was prepared by spray forming process and the precipitate behavior and microstructure of the extruded...
481
Authors: Hui Jie Liu, Li Zhou, Yong Xian Huang, Qi Wei Liu
Abstract:As a new solid-state welding process, friction stir welding (FSW) has been successfully used for joining low melting point materials such as...
1185
Authors: S.G. Shabestari, R. Gholizadeh
Chapter 2: Forming in Melt or Near Melt Condition
Abstract:Dense precipitation of various intermetallic compounds is a common feature in the microstructure of Al-Si piston alloys. In this...
289
Authors: Michał Stopyra, Andrzej Kiełbus
Abstract:The paper presents the results of the influence of various etchants on the quantitative analysis of microstructure of Mg-Nd master alloy. The...
192