缝隙几何尺寸对闭塞区化学环境及腐蚀行为的影响
许志昱, 胡骞, 黄峰, 刘静, 卢献忠

Effect of Crevice Geometry on Chemical Environment of Crevice Solution and Corrosion Behavior of 2205 Duplex Stainless Steel
XU Zhiyu, HU Qian, HUANG Feng, LIU Jing, LU Xianzhong
表2 极化16 h闭塞区溶液Cl-和H+的富集速率
Table 2 Enrichment rates of Cl- and H+ in crevice solution after 16 h polarization
Crevice geometry parameter

Average enrichment rate

ε / mol·L-1·h-1

Relative enrichment rate

ε' / %

V / mLδ / μmCl-H+Cl-H+
1.23006.39 × 10-39.55 × 10-6790.48
1.22006.92 × 10-38.13 × 10-5854.1
1.21008.14 × 10-32.00 × 10-3100100
2.41004.87 × 10-33.39 × 10-5601.7
3.61002.70 × 10-36.91 × 10-6330.35