TY - JOUR
T1 - Machinability of γ-TiAl
T2 - A review
AU - XIA, Ziwen
AU - SHAN, Chenwei
AU - ZHANG, Menghua
AU - CUI, Minchao
AU - LUO, Ming
N1 - Publisher Copyright:
© 2023 Chinese Society of Aeronautics and Astronautics
PY - 2023/7
Y1 - 2023/7
N2 - Owing to its outstanding mechanical properties, γ-TiAl is desirable materials for cross-generation aero-engines. Nearly 70 years of exploration have made it into the initial application. However, the intrinsic brittleness of γ-TiAl is still a critical obstacle to its large-scale applications. In this context, researchers have made many attempts to study the machinability of γ-TiAl. At present, existing relevant reviews have mostly discussed the processing methods of γ-TiAl. Hence, there is still a lack of a perspective on material properties to analyze the cutting mechanism. Herein, this paper provides the systematic review of such perspectives. Above all, the developmental process, phase transformation, and microstructural evolution of γ-TiAl are discussed, as well as its deformation mechanism at quasi-static. These topics can provide a materials science foundation for the machining of γ-TiAl. And then, the review focuses on the cutting mechanism and surface integrity of γ-TiAl. Moreover, special attention is paid to the microscope deformation mechanism and surface defects evolution of γ-TiAl during cutting. Finally, the review indicates that the high-performance machining technology of γ-TiAl faces challenges and proposes potential future research directions. Solving the difficulties during machining γ-TiAl aero-engine components will accelerate the development of new aero-engines.
AB - Owing to its outstanding mechanical properties, γ-TiAl is desirable materials for cross-generation aero-engines. Nearly 70 years of exploration have made it into the initial application. However, the intrinsic brittleness of γ-TiAl is still a critical obstacle to its large-scale applications. In this context, researchers have made many attempts to study the machinability of γ-TiAl. At present, existing relevant reviews have mostly discussed the processing methods of γ-TiAl. Hence, there is still a lack of a perspective on material properties to analyze the cutting mechanism. Herein, this paper provides the systematic review of such perspectives. Above all, the developmental process, phase transformation, and microstructural evolution of γ-TiAl are discussed, as well as its deformation mechanism at quasi-static. These topics can provide a materials science foundation for the machining of γ-TiAl. And then, the review focuses on the cutting mechanism and surface integrity of γ-TiAl. Moreover, special attention is paid to the microscope deformation mechanism and surface defects evolution of γ-TiAl during cutting. Finally, the review indicates that the high-performance machining technology of γ-TiAl faces challenges and proposes potential future research directions. Solving the difficulties during machining γ-TiAl aero-engine components will accelerate the development of new aero-engines.
KW - Cutting mechanism
KW - Deformation
KW - Machinability
KW - Surface integrity
KW - γ-TiAl
UR - http://www.scopus.com/inward/record.url?scp=85163551906&partnerID=8YFLogxK
U2 - 10.1016/j.cja.2023.05.029
DO - 10.1016/j.cja.2023.05.029
M3 - 文献综述
AN - SCOPUS:85163551906
SN - 1000-9361
VL - 36
SP - 40
EP - 75
JO - Chinese Journal of Aeronautics
JF - Chinese Journal of Aeronautics
IS - 7
ER -