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介绍了管线钢在我国目前的应用情况与目前的研究趋势,长距离油气输送仍将以管道运输为主。分析了第二相粒子提高管线钢性能的原理和发展趋势,讨论了第二相粒子的添加方法。讨论了钙镁粒子作为第二相粒子的可行性,分析了钙镁粒子对管线钢组织和抗腐蚀性能的影响。
The present situation and current research trend of pipeline steel in our country are introduced. Long-distance oil and gas transportation will still be dominated by pipeline transportation. The principle and trend of the second phase particles to improve the performance of pipeline steel were analyzed. The method of adding second phase particles was discussed. The feasibility of using calcium and magnesium particles as second phase particles was discussed. The effects of calcium and magnesium particles on the microstructure and corrosion resistance of pipeline steel were analyzed.