| 1Cr11Co3W3MoVNbNB铁素体叶片钢620℃时效M23C6和MX第二相的析出行为 |
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| 引用本文： | 刘新权,杨钢,杨沐鑫.1Cr11Co3W3MoVNbNB铁素体叶片钢620℃时效M23C6和MX第二相的析出行为[J].钢铁研究学报,2012,24(5):53-57. |
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| 作者姓名： | 刘新权 杨钢 杨沐鑫 |
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| 作者单位： | 1. 无锡透平叶片有限公司,江苏无锡,214174
2. 钢铁研究总院结构材料研究所,北京,100081 |
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| 基金项目： | 国家高技术研究发展计划项目 |
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| 摘 要： | 采用X射线衍射、扫描电镜和透射电镜等研究了新型铁素体叶片钢在620℃长期时效过程中，M23C6碳化物和MX碳氮化物的析出行为。结果表明：620℃、2000h时效下，M23C6主要在时效过程中析出，且时效初期析出较快，而后缓慢析出，Nb(CN)相主要在热处理回火和时效初期析出；M23C6、Nb(CN)第二相620℃×2000h的热稳定性较好。
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| 关 键 词： | 长期时效 碳化物 碳氮化物 析出行为 铁素体叶片钢 |
Precipitation Behavior of M23C6 and MX Second Phase in 1Cr11Co3W3MoVNbNB Ferrite-Blade-Steel at 620 ℃ Aging Treatment |
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| LIU Xin-quan,YANG Gang,YANG Mu-xin.Precipitation Behavior of M23C6 and MX Second Phase in 1Cr11Co3W3MoVNbNB Ferrite-Blade-Steel at 620 ℃ Aging Treatment[J].Journal of Iron and Steel Research,2012,24(5):53-57. |
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| Authors: | LIU Xin-quan YANG Gang YANG Mu-xin |
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| Affiliation: | 1. Wuxi Turbine Blade Co Ltd, Wuxi 214174, Jiangsu, China ;2. Institute for Structural Materials,Central Iron and Steel Research Institute, Beijing 100081, China |
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| Abstract: | Precipitation behavior of M23C6 carbides and MX carbonitrides were investigated by X-ray diffraction and scanning electron microscopy and transmission electron microscopy in new ferrite-blade-steels during long term aging at 620 ℃.The results show that M23C6 are mainly precipitated during aging process with rapid rate of desorption in initial aging step and then slow at 620 ℃ aging for 2 000 h.Nb(CN) mainly are precipitated during tempering and initial aging process.Thermal stability of M23C6 and Nb(CN) are good at 620 ℃ aging for 2 000 h. |
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| Keywords: | long-term-aging carbide carbonitride precipitation behavior ferrite-blade-steel |
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