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Article
Mathematical Modeling for High Temperature Flow Behavior of As-cast Ti-45Al-8.5 Nb-(w, B, Y) Alloy
Materials & Design
  • Xiaoming He, Missouri University of Science and Technology
  • Zhongqi Yu
  • Guiming Liu
  • Wenge Wang
  • Xinmin Lai
Editor(s)
Edwards, K. L.
Abstract
The hot deformation behaviors of as-cast Ti-45Al-8.5Nb-(W,B,Y) alloy were studied. A mathematical model has been developed to predict the stress-strain curves of this high Nb containing TiAl based alloy during hot deformation. This model is based on a phenomenological representation of the shape of stress-strain curves, which can be represented by Zener-Hollomon parameter in a hyperbolic sinusoidal type equation. Material constants in the equation were expressed in polynomial form of strain; parameters in the polynomials were obtained by least-square method. The stress-strain curves obtained by this model are in good agreement with experimental results.
Department(s)
Mathematics and Statistics
Keywords and Phrases
  • Non-ferrous metals and alloys,
  • forming,
  • plastic behavior
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2009 Elsevier, All rights reserved.
Publication Date
1-1-2009
Citation Information
Xiaoming He, Zhongqi Yu, Guiming Liu, Wenge Wang, et al.. "Mathematical Modeling for High Temperature Flow Behavior of As-cast Ti-45Al-8.5 Nb-(w, B, Y) Alloy" Materials & Design (2009)
Available at: http://works.bepress.com/xiaoming-he/31/