Paper Title:
High and Low Cycle Fatigue of Orthorhombic Ti-22Al-27Nb Alloy
  Abstract

The effect of the lamellar morphology on the high cycle fatigue (HCF) and low cycle fatigue (LCF) behavior of the Ti-22Al-27Nb alloy was investigated. The HCF tests were performed in air at an R ratio of 0.1 in the load-control mode, whereas the LCF tests were performed in vacuum at 923 K in the strain-controlled mode. The specimens with fine lamellar microstructure exhibited a better resistance to HCF than those with coarse lamellar microstructure. The microstructure-insensitive behavior was, however, observed in the LCF tests at 923 K. The fatigue mechanism was discussed based on the concurrent observation of the initiation facet and the underlying microstructure, and the TEM observations.

  Info
Periodical
Materials Science Forum (Volumes 475-479)
Main Theme
Edited by
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
Pages
589-594
DOI
10.4028/www.scientific.net/MSF.475-479.589
Citation
M. Hagiwara, A. Araoka, S. Emura , "High and Low Cycle Fatigue of Orthorhombic Ti-22Al-27Nb Alloy", Materials Science Forum, Vols. 475-479, pp. 589-594, 2005
Online since
January 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: Chang Liang Li, Hua Ding, Yong Qing Zhao, Lian Zhou
Abstract:Superplastic forming provides a good way for Ti alloys which are usually difficult to be deformed. Ti75 alloy with a nominal composition of...
2969
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: Trevor Sawatzky, Dong Yi Seo, H. Saari, D. Laurin, Dae Jin Kim, Young Won Kim
Abstract:The microstructure and creep properties of two powder metallurgy (PM) ‘beta gamma’ titanium aluminide alloys are presented. Alloy powders...
500
Authors: De Liang Zhang, Hong Bao Yu, Yuong Chen
Abstract:Bulk nanostructured (grain sizes in the range of 50-200nm) and ultrafine structured (grain sizes in the range of 100-500nm) -TiAl based...
149
Authors: Xin Nan Wang, Yue Fei, Xiao Hu Zhou, Zhi Shou Zhu, Jun Li, Guo Qiang Shang, Li Wei Zhu
Abstract:The evolution regularities of microstructure and property of a new metastable β titanium alloy with different solution treatment and aging...
932