Microstructural evolution and constitutive models to predict hot deformation behaviors of a nickel-based superalloy

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• 作者：Y.C. Lin^a ; ^b ; ^c ; ^{yclin@csu.edu.cn} ; ^{linyongcheng@163.com} ; Fu-Qi Nong^a ; ^c ; Xiao-Min Chen^a ; ^c ; Dong-Dong Chen^a ; ^c ; Ming-Song Chen^a ; ^c
• 关键词：Alloy ; Hot deformation ; Grain boundary map ; Constitutive model
• 刊名：Vacuum
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：137
• 期：Complete
• 页码：104-114
• 全文大小：3340 K
• 卷排序：137

文摘

The hot compressive deformation behavior of a nickel-based superalloy is investigated. High temperature and low strain rate facilitate the nucleation and growth of DRX grains. A Hannan-Quinn information criterion based MGGP (HQC-MGGP) model is proposed. MGGP, HQC-MGGP, ANN and Arrhenius type phenomenological models are compared. Over-fitting problem of multi-gene genetic programming (MGGP) model is overcome.