Flow stress prediction of high-Nb TiAl alloys under high temperature deformation

Liang Cheng, Hui Chang, Bin Tang, Hongchao Kou, Jinshan Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Scopus citations

Abstract

In this work, a back propagation artificial neural network (BP-ANN) model is conducted to predict the flow behaviors of high-Nb TiAl (TNB) alloys during high temperature deformation. The inputs of the neural network are deformation temperature, log strain rate and strain whereas flow stress is the output. There is a single hidden layer with 7 neutrons in the network, and the weights and bias of the network were optimized by Genetic Algorithm (GA). The comparison result suggests a very good correlation between experimental and predicted data. Besides, the non-experimental flow stress predicted by the network is shown to be in good agreement with the results calculated by three dimensional interpolation, which confirmed a good generalization capability of the proposed network.

Original languageEnglish
Title of host publicationMachinery, Materials Science and Engineering Applications
Pages723-728
Number of pages6
DOIs
StatePublished - 2012
Externally publishedYes
Event2012 2nd International Conference on Machinery, Materials Science and Engineering Applications, MMSE 2012 - Wuhan, China
Duration: 16 Jun 201217 Jun 2012

Publication series

NameAdvanced Materials Research
Volume510
ISSN (Print)1022-6680

Conference

Conference2012 2nd International Conference on Machinery, Materials Science and Engineering Applications, MMSE 2012
Country/TerritoryChina
CityWuhan
Period16/06/1217/06/12

Keywords

  • Artificial neutral network
  • Flow stress
  • Genetic Algorithm
  • High-Nb TiAl alloys
  • Hot deformation

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