20MnTiB steel is the most widely used high-strength bolt material for steel structure bridges in China, and its performance is of great significance to the safe operation of bridges. Based on the investigation of the atmospheric environment in Chongqing in recent years, the corrosion solution to simulate the humid climate of Chongqing was designed in this study, and the stress corrosion experiment of high-strength bolts in the simulated humid climate of Chongqing was carried out. The effects of temperature, pH and concentration of simulated corrosion solution on the stress corrosion behavior of 20MnTiB high-strength bolts were studied.

中文翻译：

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20MnTiB高强螺栓在重庆潮湿气候模拟中的应力腐蚀开裂行为

20MnTiB钢是目前国内应用最广泛的钢结构桥梁高强度螺栓材料，其性能对桥梁的安全运营具有重要意义。本研究基于对重庆近年来大气环境的调查，设计了模拟重庆潮湿气候的腐蚀溶液，并进行了模拟重庆潮湿气候下高强度螺栓的应力腐蚀试验。 . 研究了温度、pH值和模拟腐蚀溶液浓度对20MnTiB高强螺栓应力腐蚀行为的影响。