中文摘要：

分析了我国的石油天然气消费利用及油气管道建设现状，对国内外X80管线钢的研制和应用情况进行了介绍，同时介绍了国内X80管线钢的腐蚀研究情况。介绍了不同pH值对X80管线钢土壤腐蚀行为的影响以及腐蚀产物钝化膜对钢表面的腐蚀行为与过程的影响。X80级管线钢的抗硫化物应力腐蚀开裂（SSCC）和氢致开裂（HIC）行为的结果表明，受其组织不均匀、晶粒粗大、硬度大的影响热影响区（HAz）对应力腐蚀开裂最为敏感。薄壁管材较厚壁管材有更好的H2S环境应力腐蚀抗力。氢致附加应力能协助外应力促进塑性变形，导致材料的韧性损失，使得材料断裂。

英文摘要：

The present situation of oil and gas consumption and construction status of pipelines in China were introduced, development and application of pipeline steel X80 at home and abroad were discussed. In the meantime, corrosion research status of the pipeline steel X80 was investigated. Effect of different pH values of soil on corrosion of pipeline steel X80 was introduced as well effect of corrosion product passive film on corrosion behavior and corrosion process. The resistance performances to sulfide stress corrosion cracking （SSCC） behavior and hydrogen induced cracking （HIC） behavior of pipeline steel X80 were presented. The results show that the heat-affected zone （HAZ） shows poor property of resisting stress corrosion cracking due to its high hardness and coarse grained microstructure. The SSCC resistance of the thin wall steel tube is higher than that of the thick wall tube. The hydrogen-induced additive stress which can help the external stress to enhance the plastic deformation results in loss of material toughness and material fracture.