超音速微粒轰击诱导表面纳米化对<strong>300M</strong>钢腐蚀疲劳行为的影响

超音速微粒轰击诱导表面纳米化对300M钢腐蚀疲劳行为的影响

熊毅, 栾泽伟, 马云飞, 厉勇, 查小琴

Effect of Surface Nanocrystallization Induced by Supersonic Fine Particles Bombardment on Corrosion Fatigue Behavior of 300M Steel

XIONG Yi, LUAN Zewei, MA Yunfei, LI Yong, ZHA Xiaoqin

图9 SFPB处理300M钢不同载荷下腐蚀疲劳后微观组织的TEM像

Fig.9 TEM images of SFPB-treated 300M steel after corrosion fatigue at different loads
(a, b) topmost surface, σ_max = 400 MPa
(c, d) topmost surface, σ_max = 800 MPa (Insets of Figs.9a and c show the SAED patterns, and insets in Figs.9b and d present the grain size distribution histograms calculated by Nano Measurer software)
(e) subsurface, σ_max = 400 MPa
(f) subsurface, σ_max = 800 MPa