Tensile Deformation of Alloy 617 at Different Temperatures

Marthandam, Vikram; Roy, Ajit K.

doi:10.1115/pvp2007-26500

Cited by 1 publication

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“…Further, both alloy 617 and 276 can maintain excellent metallurgical stability and corrosion resistance even after its prolonged exposure at elevated temperatures [4]. Extensive experimental work was performed and published by the University of Navada Las Vegas (UNLV) researchers relevant to several nickel base super alloys [5], [6]. Numerical results and comparisons with experimental data for the creep deformation of the single crystal superalloy LEK94 is discussed by Trinh and Hackl [7].…”

Section: Introductionmentioning

confidence: 99%

ANN Modeling of Nickel Base Super Alloys for Time Dependent Deformation

Hasan

Hazza²,

AL-Grafi³

et al. 2014

JOACE

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Alloys 617 and 276 are nickel-based super alloys with excellent mechanical properties, oxidation, creepresistance, and phase stability at high temperatures. These alloys are used in complex and stochastic applications. Thus, it is difficult to predict their output characteristics mathematically. Therefore, the non-conventional methods for modeling become more effective. These two alloys have been subjected to time-dependent deformation at high temperatures under sustained loading of different values. The creep results have been used to develop the new models. Artificial neural network (ANN) was applied to predict the creep rate and the anelastic elongation for the two alloys. The neural network contains twenty hidden layer with feed forward back propagation hierarchical. The neural network has been designed with MATLAB Neural Network Toolbox. The results show a high correlation between the predicted and the observed results which indicates the validity of the models. 

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