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材料工程  2020, Vol. 48 Issue (3): 98-104    DOI: 10.11868/j.issn.1001-4381.2019.000017
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
P92钢625℃持久实验过程中试件特征部位相参量的变化
刘成1, 彭志方1, 彭芳芳2, 陈方玉3, 刘省1
1. 武汉大学 动力与机械学院, 武汉 430072;
2. 东方电气集团有限公司 东方锅炉股份有限公司, 四川 自贡 643000;
3. 武汉钢铁(集团)公司研究院, 武汉 430080
Phase parameter changes of specific positions of P92 steel specimens during creep rupture test at 625℃
LIU Cheng1, PENG Zhi-fang1, PENG Fang-fang2, CHEN Fang-yu3, LIU Sheng1
1. School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China;
2. Dongfang Boiler Group Co., Ltd., DongfangElectric Corporation, Zigong 643000, Sichuan, China;
3. ResearchInstitute of Wuhan Iron and Steel(Group) Corp., Wuhan 430080, China
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摘要 采用扫描电镜背散射电子成像(SEM-BSE)、X射线能谱(EDS)、电子背散射衍射(EBSD)、透射电镜(TEM)衍衬像和复相分离技术(MPST)分别研究P92钢在625℃持久实验条件(110~180 MPa)下试件特征部位(断口附近和夹持端)相参量与力学性能的变化。结果表明:在相同持久时间下,与可视为无应力作用的试件夹持端相比,应力集中的断口附近M23C6相和Laves相析出量较大,M23C6相粗化且马氏体板条变宽,基体中Cr,W元素的浓度和小角度晶界的比例较小,马氏体向铁素体转化程度较大,硬度下降。由此可见,无应力时效过程中试样所发生的显微组织演化及其所对应的性能不能表征相同时间条件下有应力部位的真实情况。
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刘成
彭志方
彭芳芳
陈方玉
刘省
关键词 P92钢析出相马氏体板条小角度晶界显微硬度    
Abstract:The variation in phase parameter and mechanical properties of specific positions (gauge and grip) of the P92 steel specimens tested at 625℃ and 110-180 MPa was studied by SEM-BSE, EDS, EBSD, TEM and multiphase separation technology (MPST). The results show that highly stressed regions near fracture surface in the gauge portion are of higher volume fractions of M23C6 carbide and Laves phase, higher coarsening/widening trend of M23C6 carbides/martensite laths, and lower concen-tration of Cr and W elements and smaller percentage of low angle grain boundaries in the matrix as compared to a stress-free condition at the gripped end. It is evident that all these changes lead to the transformation of martensite into ferrite and hardness decreasing. It is indicated through this study that the changes in microstructure and mechanical properties of the stress-free sample cannot actually reflect the real changes of the samples stressed at the same aging temperature and time.
Key wordsP92 steel    precipitated phase    martensite lath    low angle grain boundary    microhardness
收稿日期: 2019-01-09      出版日期: 2020-03-18
中图分类号:  TG142.1  
通讯作者: 彭志方(1954-),男,教授,博士,研究方向为新一代耐热钢及高温合金,联系地址:湖北省武汉市武汉大学动力与机械学院(430072),E-mail:zfpeng@whu.edu.cn     E-mail: zfpeng@whu.edu.cn
引用本文:   
刘成, 彭志方, 彭芳芳, 陈方玉, 刘省. P92钢625℃持久实验过程中试件特征部位相参量的变化[J]. 材料工程, 2020, 48(3): 98-104.
LIU Cheng, PENG Zhi-fang, PENG Fang-fang, CHEN Fang-yu, LIU Sheng. Phase parameter changes of specific positions of P92 steel specimens during creep rupture test at 625℃. Journal of Materials Engineering, 2020, 48(3): 98-104.
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http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2019.000017      或      http://jme.biam.ac.cn/CN/Y2020/V48/I3/98
[1] GHASSEMI-ARMAKI H,CHEN R P,MARUYAMA K,et al.Static recovery of tempered lath martensite microstructures during long-term aging in 9-12% Cr heat resistant steels[J].Materials Letters,2009,63(28):2423-2425.
[2] VÝROSTKOVÁ A,HOMOLOVÁ V,PECHA J,et al.Phase evolution in P92 and E911 weld metals during ageing[J].Materials Science and Engineering:A,2008,480(1/2):289-298.
[3] LIU F,LIT J,LIANG J,et al.Effect of thermal aging on microstructure and mechanical properties of P92 steel joints[J].Proceedings of the CSEE,2011,31(14):121-126.
[4] ZIELINSKI A,GOLANSKI G,SROKA M. Assessment of microstructure stability and mechanical properties of X10CrWMoVNb9-2(P92) steel after long-term thermal ageing for high-temperature applications[J].Kovove Materialy,2016,54(1):61-70.
[5] ZHU S,YANG M,SONG X L,et al.Characterisation of Laves phase precipitation and its correlation to creep rupture strength of ferritic steels[J].Materials Characterization,2014,98:60-65.
[6] 张红军,周荣灿,唐丽英,等.P92钢650℃时效的组织性能研究[J].中国电机工程学报,2009,29(增刊1):174-177. ZHANG H J,ZHOU R C,TANG L Y,et al.Study on microstructure and mechanical properties of P92 steel aged at 650℃[J]. Proceedings of the CSEE,2009,29(Suppl 1):174-177.
[7] 马龙腾,刘正东,白银.9Cr3W3Co钢高温时效脆化现象与改进方法[J].材料工程,2019,47(3):139-146. MA L T,LIU Z D,BAI Y.Aging embrittlement at high temperature of 9Cr3W3Co steel and its improvement method[J].Journal of Materials Engineering,2019,47(3):139-146.
[8] SKLENICKA V,KUCHAROVÁ K,SVOBODA M,et al.Long-term creep behavior of 9-12%Cr power plant steels[J].Materials Characterization,2003,51(1):35-48.
[9] KIPELOVA A,KAIBYSHEV R,BELYAKOV A,et al.Microstructure evolution in a 3%Co modified P911 heat resistant steel under tempering and creep conditions[J].Advanced Materials Research,2011,89/91(3):295-300.
[10] MARUYAMA K,SAWADA K,KOIKE J.Strengthening mechanisms of creep resistant tempered martensitic steel[J].ISIJ International,2001,41(6):641-653.
[11] 钟蛟,彭志方,陈方玉,等.P92钢奥氏体化后的冷却方式对650℃时效组织及硬度稳定性的影响[J].材料工程,2019,47(1):119-124. ZHONG J,PENG Z F,CHEN F Y,et al.Effect of cooling modes after austenitization on stabilities of microstructure and hardness of P92 steel aged at 650℃[J].Journal of Materials Engineering,2019,47(1):119-124.
[12] ISEDA A,TERANISHI H,YOSHIKAWA K.Effects of silicon and molybdenum on long-term heating embrittlement and precipitation of Laves phase of high chromium ferritic heat resistant steels[J].Tetsu-to-Hagane,1990,76(12):2190-2197.
[13] AGHAJANI A,RICHTER F,SOMSEN C,et al.On the formation and growth of Mo-rich Laves phase particles during long-term creep of a 12% chromium tempered martensite ferritic steel[J].Scripta Materialia,2009,61(11):1068-1071.
[14] PENG Z F,DANG Y Y,PENG F F.Effect of carbon and niobium contents on phase parameters and creep rupture time at 650℃ for TP347HFG steel[J].Acta Metallurgica Sinica,2012,48(4):450-454.
[15] 彭志方,蔡黎胜,彭芳芳,等.P92钢中δ铁素体对700和750℃时效析出相成分和体积分数的影响[J].金属学报,2012,48(11):1315-1320. PENG Z F,CAI L S,PENG F F,et al.Effect of δ-ferrite on the composition and volume fraction of precipitates in P92 steel aged at 700 and 750℃[J].Acta Metallurgica Sinica,2012,48(11):1315-1320.
[16] PENG Z F,PENG F F,CHEN F Y.Applications of a phase analysis technology to advanced heat resistant steels and nickel-base superalloys[C]//SHINGLEDECKER J.Advances in Materials Technology for Fossil Power Plants:Proceedings from the Seventh International Conference (EPRI 2013).Ohio:ASM International,2013:1151-1162.
[17] MASUYAMA F.Hardness model for creep-life assessment of high-strength martensitic steels[J].Materials Science and Engineering:A, 2009,510/511:154-157.
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