LaBoMaP Directory PhD students 2022 Thesis Defenses


Published on October 24, 2022 Updated on November 26, 2022


Modelling of the microstructure evolution of the machined surface during high speed machining

Doctoral advisors

  • Jun ZHANG
  • José OUTEIRO


Xi’an Jiaotong University (XJTU)



November 25th, 2022

The jury is composed by

  • Mr. Domenico UMBRELLO, Professor, University of Calabria                                                  Reviewer
  • Mr. Min WAN, Professor, Northwestern Polytechnical University                                            Reviewer
  • Mr. Mohammed NOUARI, Professor, University of Lorraine                                                    Examiner
  • Mrs. Madalina CALAMAZ, Associate Professor, Arts et Métiers Institute of Technology       Examiner
  • Mr. Ke HUANG, Professor, Xi'an Jiaotong University                                                              Examiner
  • Mr. Qinghua SONG, Professor, Shandong University                                                              Examiner
  • Mr. Jun ZHANG, Professor, Xi’an Jiaotong University                                                             Examiner
  • Mr. José OUTEIRO, Assoc. Professor HDR/Habil., Arts et Métiers Institute of Technology   Examiner



The rapid development of aerospace industry is the motivation for increasing the manufacturing productivity keeping the same part quality or even improving it. High-speed machining (HSM) of difficult-to-cut materials like Titanium-based alloys is a way to achieve a high productivity. So far, most of research works on surface integrity in machining are based on the phenomenological analysis and rarely involve a theoretical analysis of the physical phenomena responsible for the modification of the near surface layer properties. In this research work, the microstructure evolution, and the surface integrity in HSM of Ti-6Al-4V alloy are investigated using modelling and experimental approaches. A multiscale modelling approach combining finite element simulations using CEL approach and cellular automata method permitted to simulate the microstructure evolution in machining, including in the machined surface and subsurface. Surface topography, plastic strain, microhardness, and residual stresses of the machined surface and subsurface were also simulated, revealing the influence of the cyclic nature of the cutting process in these surface integrity characteristics.


Multiscale-modelling, High Speed Machining, Ti-6Al-4V, Microstructure, Dynamic Recrystallisation, Surface Integrity.