Journal
COMPUTATIONAL MATERIALS SCIENCE
Volume 156, Issue -, Pages 241-245Publisher
ELSEVIER
DOI: 10.1016/j.commatsci.2018.09.055
Keywords
Powder metallurgy superalloy; Thermal deformation behavior; Large strain; Arrhenius-type model; Artificial Neural Network (ANN) model
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Funding
- National Key Research and Development Program of China [2016YFB0700505]
- National Natural Science Foundation of China [51571020]
- State Key Laboratory for Advanced Metals and Materials [2016-Z05]
- Guangdong Provincial Key Laboratory for Technology and Application of Metal Toughening [GKL201611]
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We used two different methods to model the thermal deformation behavior of a Ni-based powder metallurgy superalloy at large strains (> 0.6) near the gamma' solvus. We concluded that the Artificial Neural Network model, rather than the strain-compensated Arrhenius model, describes thermal deformation behavior accurately under large strains during hot extrusion. Artificial neural network, a data-driven machine learning approach, is more suitable for predicting unknown deformation behavior in extreme conditions by data learning based on a known experimental dataset.
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