阳极氧化处理对2014-T6铝合金弯曲疲劳性能的影响*
张艳斌, 张立民, 张继旺, 曾京

EFFECT OF ANODIZING TREATMENT ON BENDING FATIGUE PROPERTIES OF 2014-T6 ALUMINIUM ALLOY
ZHANG Yanbin, ZHANG Limin, ZHANG Jiwang, ZENG Jing
表1 应力强度因子与初始裂纹深度(氧化层厚度)的关系
Table 1 Relationship between stress intensity factor (ΔK)and initial crack depth (thickness of oxide layer)

(MPa·m1/2)

σa / MPa 5 μm 10 μm 20 μm
350 1.60 2.27 3.21
300 1.37 1.94 2.75
275 1.26 1.78 2.52
250 1.15 1.62 2.29
225 1.03 1.46 2.06
200 0.92 1.30 1.83