耦接件涂层失效程度与其力学损伤之间的关系

李卓玄, 曹艳辉, 李崇杰, 李辉, 张小明, 雍兴跃

Relationship Between Corrosion Failure Degree of Organic Coatings and Mechanical Properties for Dissimilar Metal Assamblies

LI Zhuoxuan, CAO Yanhui, LI Chongjie, LI Hui, ZHANG Xiaoming, YONG Xingyue

表1 300M钢、2024与5A06铝合金以及TC12钛合金的化学成分

Table 1 Chemical compositions of 300M steel, 2024 and 5A06 Al-alloy and TC12 Ti-alloy (mass fraction / %)

Material C Si Mn Ni Cr Mo V P S Cu Mg Zn Sn Zr Nb Fe Al Ti 300M steel 0.42 1.57 0.82 1.93 0.84 0.38 0.08 0.01 0.01 0.84 - - - - - Bal. - - 2024 Al-alloy - 0.50 0.52 - 0.10 4.10 1.45 0.25 - - - - Bal. - 5A06 Al-alloy - 0.20 0.62 - - - - - - 0.08 6.23 0.12 - - - 0.01 Bal. 0.05 TC12 Ti-alloy - - - - 1.26 2.84 - - - - - - 1.80 1.82 1.96 0.15 6.25 Bal.