Paper Title:
Study of Tensile Properties and Fracture Mechanisms of Fully Lamellar TiAl Based Alloy
  Abstract

The tensile properties and fracture mechanisms of fully lamellar TiAl based alloy was studied by room and high temperature (400°C) tensile test. The results indicated that: the crack initiated between weak lamellar interfaces.With tension increased, the cracks extended along lamellar direction. Crack propagation resistance was enhanced at colony boundary. Ligaments broke while load increased, and then the main crack and microcrack linked. The fracture process was that the main crack occurred firstly, microcrack appeared and then propagated, the main crack and microcrack were linked,and the alloy fractured finally; The ductility of the alloy at 400°C was superior to that at room temperature; The fracture mechanism of the fully lamellar TiAl based alloy is brittle cleavage fracture.

  Info
Periodical
Edited by
Honghua Tan
Pages
1106-1111
DOI
10.4028/www.scientific.net/AMM.66-68.1106
Citation
B. Tang, C. J. Chen, Z. Y. Xue, C. J. Wu, S. S. Li, "Study of Tensile Properties and Fracture Mechanisms of Fully Lamellar TiAl Based Alloy", Applied Mechanics and Materials, Vols. 66-68, pp. 1106-1111, 2011
Online since
July 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: Tomáš Denk, Vladislav Oliva, Aleš Materna
Abstract:A two-parameter constraint-based fracture mechanics approach is used to explain the effect of the constraint on the apparently anomalous...
307
Authors: Yan Qing Wu, Hui Ji Shi
Abstract:This study looks at the crack propagation characteristics based on the cohesive zone model (CZM), which is implemented as a user defined...
187
Authors: Young Pyo Kim, Cheol Man Kim, Woo Sik Kim, Kwang Seon Shin
Abstract:A clear understanding of fatigue properties for the pipeline steel and its weld is important to provide information for pipeline design...
303
Authors: R.H.C. Wong, Y.S.H. Guo, K.T. Chau, Wei Shen Zhu, Shu Cai Li
Abstract:This paper presents the crack growth mechanism from a 3-D surface flaw on gabbro specimens using strain measurement and acoustic emission...
2357