| 25Cr2Mo1V钢在高温服役中的组织和性能研究 |
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| 引用本文： | 任耀剑,张绪平,孙智.25Cr2Mo1V钢在高温服役中的组织和性能研究[J].徐州建筑职业技术学院学报,2009,9(2):41-43. |
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| 作者姓名： | 任耀剑 张绪平 孙智 |
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| 作者单位： | 中国矿业大学,材料科学与工程学院,江苏,徐州,221008 |
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| 摘 要： | 采用SEM、金相及能谱分析方法，通过力学性能测试，对25Cr2Mo1V钢在高温服役状态下的组织和性能进行了研究．结果表明：25Cr2Mo1V铜在长期高温下服役会形成黑色网状晶界，且晶界粗化及V、S元素在晶界处的偏聚，导致冲击韧性降低，产生脆化现象，造成其服役时间缩短．
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| 关 键 词： | 25Cr2Mo1V 元素偏聚 晶界粗化 脆性断裂 |
Study on Microstructure and Performance of 25Cr2Mo1V Steel Under High-Temperature Service |
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| REN Yao-jian,ZHANG Xu-ping,SUN Zhi.Study on Microstructure and Performance of 25Cr2Mo1V Steel Under High-Temperature Service[J].Journal of XUZHOU Institute of Architectural Technology,2009,9(2):41-43. |
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| Authors: | REN Yao-jian ZHANG Xu-ping SUN Zhi |
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| Affiliation: | ( School of Material Science and Engineering,China University of Mining and Technology, Xuzhou,Jiangsu 221008, China ) |
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| Abstract: | Based on the mechanical testing by means of SEM, metallographic examination and EDS analysis, this paper studied the microstructure and performance of 25 Cr2Mo1V steel under high-temperature service. The results showed that the black reticular grain boundary was formed with 25Cr2Mo1V steel under long-term elevated temperature service, and the grain-boundary coarsening and grain boundary segregation of V and S contributed to the reduction of impact ductility and caused embrittlement, which resulted in the shortening of its service time. |
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| Keywords: | 25Cr2Mo1V |
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