| Cr5Mo炉管高温服役后性能及剩余寿命评估 |
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| 引用本文： | 邵建雄,张玮.Cr5Mo炉管高温服役后性能及剩余寿命评估[J].压力容器,2008,25(12). |
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| 作者姓名： | 邵建雄 张玮 |
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| 作者单位： | 1. 中国石油化工股份有限公司宁波工程公司,浙江,宁波,315207
2. 浙江工业大学化工机械设计研究所,浙江,杭州 |
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| 摘 要： | 通过金相组织分析、力学性能测试、断口SEM等分析了Cr5Mo炉管高温服役78000 h后的组织性能,并采用Larson-Miller方法预测了炉管剩余寿命。结果表明,焦化炉Cr5Mo炉管在670℃和20 MPa的工作条件下可继续服役26000 h。
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| 关 键 词： | Cr5Mo炉管 高温 剩余寿命 |
Material Structural Performance and Residual Life Assessment of Cr5Mo Furnace Tube under High Temperature |
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| SAO Jian-xiong,ZHANG Wei.Material Structural Performance and Residual Life Assessment of Cr5Mo Furnace Tube under High Temperature[J].Pressure Vessel Technology,2008,25(12). |
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| Authors: | SAO Jian-xiong ZHANG Wei |
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| Affiliation: | SAO Jian-xiong1,ZHANG Wei2 |
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| Abstract: | Cr5Mo furnace tubes exposed to high temperature conditions after 78000 hours in a petrochemical unit were investigated experimentally.Tensile test at various temperatures were carried out and the fracture morphology of the specimens was analyzed by scanning electron microscopy.Microstructures of the specimens were obtained.Larson-Miller method was adopted to assess the residual life of Cr5Mo furnace tube.The results indicated that Cr5Mo furnace tube can experience degradation of mechanical properties at high temperature situations,and the residual life of Cr5Mo furnace tube was about 26000 hours. |
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| Keywords: | Cr5Mo furnace tube high temperature residual life |
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