Open AccessResearch Progress in Effect of Metal Surface Nanocrystallization on Fatigue Property
Author(s) -
Zongcai Shi
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/782/2/022040
Subject(s) - materials science , microstructure , residual stress , nano , metal , surface layer , hardening (computing) , work hardening , composite material , metallurgy , layer (electronics)
Nano grains have unique structure and properties. Surface self nano technology can introduce nano structure into the surface of materials. By changing the surface structure and microstructure of metal materials, the comprehensive properties of metal materials are improved. Moreover, the surface properties of metal materials are affected by the nano grain layer, work hardening and residual compressive stress. It has unique advantages in improving fatigue performance by inhibiting the initiation and propagation of fatigue cracks. In this paper, the research progress of surface self nano technology and the change of microstructure and mechanical properties caused by it are introduced. Finally, the research progress of its influence on the fatigue properties of metal materials is emphatically reported.