介绍了有关管线钢应力腐蚀破裂(SCC)的类型及特点,重点阐述了影响管线钢SCC的力学和材料因素.在力学方面,分析了管线的最大运行应力、压力波动R值(最小和最大压力的比值)、残余应力以及应变速率对SCC的重要影响.在材料方面,介绍了不同钢级管线钢的化学成分和显微组织,并对不同SCC形式下,材料的化学成分、显微组织对SCC行为的影响进行了讨论.
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