publication . Article . 2016

Prediction of microstructure and ductile damage of a high-speed railway axle steel during cross wedge rolling

Yuanming Huo; Jianguo Lin; Qian Bai; Baoyu Wang; Xuefeng Tang; Hongchao Ji;
  • Published: 03 Sep 2016 Journal: Journal of Materials Processing Technology, volume 239, pages 359-369 (issn: 0924-0136, Copyright policy)
  • Publisher: Elsevier BV
  • Country: United Kingdom
Abstract Microstructure and ductile damage have a significant influence on the deformation behavior of high-speed railway axles during hot cross wedge rolling (CWR) and its final performance. In this study, based on the continuum damage mechanics, a multiaxial constitutive model coupling microstructure and ductile damage was established to predict the evolution of microstructure and ductile damage of 25CrMo4 during hot CWR processes. Material constants within the multiaxial constitutive model were determined by Genetic Algorithm (GA) optimization techniques from thermo-mechanical test data. The derived multiaxial constitutive model was embedded into the DEFORM-3...
free text keywords: Modelling and Simulation, Industrial and Manufacturing Engineering, Metals and Alloys, Ceramics and Composites, Computer Science Applications, Deformation (mechanics), Microstructure, Composite material, Plasticity, Constitutive equation, Test data, Wedge (mechanical device), business.product_category, business, Structural engineering, business.industry, Materials science, Metallurgy, Grain size, Ductility, Science & Technology, Technology, Engineering, Industrial, Engineering, Manufacturing, Materials Science, Multidisciplinary, Engineering, Unified constitutive modeling, Microstructure evolution, Ductile damage, Cross wedge rolling, High-speed railway axle steel, Experimental validation, LOW-STRESS TRIAXIALITY, CONSTITUTIVE-EQUATIONS, CUTOFF VALUE, FRACTURE, MODEL, ALLOY, Materials, 0913 Mechanical Engineering, 0912 Materials Engineering, 0910 Manufacturing Engineering
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