大气环境下风电塔筒金属材料的应力腐蚀

摘要

塔筒金属材料在大气中的应力腐蚀会导致脆性断裂，从而对产生严重的后果。本文重点论述了应力腐蚀的几种腐蚀机理以及Cl-对应力腐蚀的影响，并介绍了应用较广的慢应力速率试验方法。%The stress corrosion in atmospheric environment will lead to the brittle fracture of tower tube metal, and that will result in serious consequence. In this paper, several mechanism of stress corrosion and the influence of Cl- to stress corrosion were discussed; and the slow strain rate tension test was introduced.