Paper Title:
Failure Analysis of Heterogeneous Microstructures in Ti-6Al-4V Alloy Using Probability Functions
  Abstract

A stochastic approach has been presented for superplastic deformation of Ti-6Al-4V alloy, and probability functions are used to model the heterogeneous phase distributions. Experimentally observed spatial correlation functions are developed, and microstructural evolutions together with superplastic deformation behavior have been investigated by means of the probability functions. The strain-rate dependent failure strain can be correctly predicted by the model. As shown by the results the probability varies approximately linearly with separation distance, and significant deformation enhanced probability changes occur during the process. Since an initial microstructure is the most crucial factor that determines the properties of final microstructure, Monte Carlo simulation has been used coupled with the probability functions for the reconstruction of microstructures. By imposing the precisely optimized distributions of phase on the test specimens, therefore finite element implementation shows better agreement with experimental data of the failure strain.

  Info
Periodical
Key Engineering Materials (Volumes 297-300)
Edited by
Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim
Pages
1852-1857
DOI
10.4028/www.scientific.net/KEM.297-300.1852
Citation
T. W. Kim, "Failure Analysis of Heterogeneous Microstructures in Ti-6Al-4V Alloy Using Probability Functions ", Key Engineering Materials, Vols. 297-300, pp. 1852-1857, 2005
Online since
November 2005
Authors
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: Atef S. Hamada, L. Pentti Karjalainen, Mahesh C. Somani, R.M. Ramadan
Abstract:The hot deformation behaviour of two high-Mn (23-24 wt-%) TWIP steels containing 6 and 8 wt-% Al with the fully austenitic and duplex...
217
Authors: Gui Qing Chen, Gao Sheng Fu, Wen Duan Yan, Chao Zeng Cheng, Ze Chang Zou
Modeling, Analysis and Simulation of Manufacturing Processes
Abstract:The 3003 Al alloy was deformed by isothermal compression in the range of deformation temperature 300-500 °C at strain rate 0.0l-10.0...
306
Authors: Wojciech Wajda, Henryk Paul
Abstract:The paper describes the mechanism of deformation at 77 K of pure aluminum bicrystals of different grain orientations. The following...
108
Authors: Xu Dong Zhou, Xiang Ru Liu
Chapter 3: Materials Forming, Machining and Joining
Abstract:The researches of non-oriented silicon steel are mainly focused on the effect of main processing parameters on the microstructure and...
1468