Assessing Fatigue Life Cycles of Material X10CrMoVNb9-1 through a Combination of Experimental and Finite Element Analysis
Mohammad Ridzwan Bin Abd Rahim,
Siegfried Schmauder,
Yupiter H. P. Manurung,
Peter Binkele,
Ján Dusza,
Tamás Csanádi,
Meor Iqram Meor Ahmad,
Muhd Faiz Mat,
Kiarash Jamali Dogahe
Affiliations
Mohammad Ridzwan Bin Abd Rahim
Institute for Material Testing, Materials Science and Strength of Materials (IMWF), University of Stuttgart, 70569 Stuttgart, Germany
Siegfried Schmauder
Institute for Material Testing, Materials Science and Strength of Materials (IMWF), University of Stuttgart, 70569 Stuttgart, Germany
Yupiter H. P. Manurung
Smart Manufacturing Research Institute (SMRI) and School of Mechanical Engineering, Universiti Teknologi MARA (UiTM), Shah Alam 40450, Malaysia
Peter Binkele
Institute for Material Testing, Materials Science and Strength of Materials (IMWF), University of Stuttgart, 70569 Stuttgart, Germany
Ján Dusza
Institute of Materials Research of SAS, Watsonova 47, 040 01 Košice, Slovakia
Tamás Csanádi
Institute of Materials Research of SAS, Watsonova 47, 040 01 Košice, Slovakia
Meor Iqram Meor Ahmad
Department of Mechanical and Manufacturing Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia (UKM), Bandar Baru Bangi 43600, Malaysia
Muhd Faiz Mat
Smart Manufacturing Research Institute (SMRI) and School of Mechanical Engineering, Universiti Teknologi MARA (UiTM), Shah Alam 40450, Malaysia
Kiarash Jamali Dogahe
Institute for Material Testing, Materials Science and Strength of Materials (IMWF), University of Stuttgart, 70569 Stuttgart, Germany
This paper uses a two-scale material modeling approach to investigate fatigue crack initiation and propagation of the material X10CrMoVNb9-1 (P91) under cyclic loading at room temperature. The Voronoi tessellation method was implemented to generate an artificial microstructure model at the microstructure level, and then, the finite element (FE) method was applied to identify different stress distributions. The stress distributions for multiple artificial microstructures was analyzed by using the physically based Tanaka–Mura model to estimate the number of cycles for crack initiation. Considering the prediction of macro-scale and long-term crack formation, the Paris law was utilized in this research. Experimental work on fatigue life with this material was performed, and good agreement was found with the results obtained in FE modeling. The number of cycles for fatigue crack propagation attains up to a maximum of 40% of the final fatigue lifetime with a typical value of 15% in many cases. This physically based two-scale technique significantly advances fatigue research, particularly in power plants, and paves the way for rapid and low-cost virtual material analysis and fatigue resistance analysis in the context of environmental fatigue applications.
