Characterization of embrittlement behavior and leakage prevention measures for HR3C steel pipe in high temperature service

doi:10.13251/j.issn.0254-6051.2020.11.006

Abstract

Abstract: HR3C steel pipe is widely used in 566, 600 and 620 ℃ super/ultra supercritical pressure units because of its excellent resistance to steam oxidation, but it shows obvious embrittlement phenomenon in the process of high temperature aging, which seriously affects the safety and stable operation of the unit. Based on the typical characteristics of embrittlement failure cases, the embrittlement phenomenon, embrittlement mechanism and embrittlement prevention of HR3C steel pipe under high temperature aging and service state were systematically analyzed, and the preventive measures for the leakage of brittle HR3C steel pipe were put forward. Finally, the application difficulties and challenges of HR3C steel were pointed out.

Key words: HR3C steel pipe, austenitic heat resistant steel, aging embrittlement, behavior characteristics, M₂₃C₆, failure

CLC Number:

TG111.91

Ju Guangyu. Characterization of embrittlement behavior and leakage prevention measures for HR3C steel pipe in high temperature service[J]. Heat Treatment of Metals, 2020, 45(11): 26-31.

References

[1]周荣灿, 范长信. 超超临界火电机组材料研究及选材分析[J]. 中国电力, 2005, 38(8): 41-47.
Zhou Rongcan, Fan Changxin. Review of material research and material selection for ultra-supercritical power plants[J]. Electric Power, 2005, 38(8): 41-47.
[2]蔡文河, 赵卫东, 曹铭珂, 等. 新形势下的金属技术监督[J]. 华北电力技术, 2008(7): 44-46.
Cai Wenhe, Zhao Weidong, Cao Mingke, et al. Metal supervision under new circumstances[J]. North China Electric Power, 2008(7): 44-46.
[3]Zhang Z, Hu Z, Tu H, et al. Microstructure evolution in HR3C austenitic steel during long-term creep at 650 ℃[J]. Materials Science and Engineering A, 2016, 681: 74-84.
[4]方旭东, 韩培德. 太钢超超临界电站锅炉用TP310HCbN无缝管的研制[J]. 钢铁, 2013, 48(7): 58-64.
Fang Xudong, Han Peide. Development of TP310HCbN seamless pipe of TISCO for ultra-supercritical power plant boiler[J]. Iron and Steel, 2013, 48(7): 58-64.
[5]黄竹平, 胡正飞, 王起江, 等. 国产HR3C耐热钢的蠕变断裂研究[J]. 金属功能材料, 2013, 20(1): 19-22.
Huang Zhuping, Hu Zhengfei, Wang Qijiang, et al. Research on creep rupture of domestic HR3C heat resistant steel[J]. Metallic Functional Materials, 2013, 20(1): 19-22.
[6]杨华春, 谢逍原, 张林, 等. 超超临界锅炉用TP310HCbN奥氏体耐热钢管化学成分优化探讨[J]. 发电设备, 2009, 23(2): 122-125.
Yang Huachun, Xie Xiaoyuan, Zhang Lin, et al. Chemical composition optimization on TP310HCbN austenitic heat-resistant steel tubes for ultra supercritical power boilers[J]. Power Equipment, 2009, 23(2): 122-125.
[7]沈琦, 刘鸿国, 唐丽英. 超超临界机组新型不锈钢Super304H、HR3C运行5400 h后的性能试验[J]. 电力建设, 2009, 30(9): 62-66.
Shen Qi, Liu Hongguo, Tang Liying. Study on operation 5400 h' performance test of ESC unit new stainless steel Super304H and HR3C[J]. Electric Power Construction, 2009, 30(9): 62-66.
[8]李太江, 刘福广, 范长信, 等. 超超临界锅炉用新型奥氏体耐热钢HR3C的高温时效脆化研究[J]. 热加工工艺, 2010, 39(14): 43-46.
Li Taijiang, Liu Fuguang, Fan Changxin, et al. Study on aging embrittlement of new type austenitic heat resistant steel HR3C used in USC boiler[J]. Hot Working Technology, 2010, 39(14): 43-46.
[9]李新梅, 张忠文, 杜宝帅, 等. 600 ℃时效后HR3C钢的显微组织和冲击韧性[J]. 机械工程材料, 2014, 38(7): 95-98.
Li Xinmei, Zhang Zhongwen, Du Baoshuai, et al. Microstructure and impact toughness of HR3C steel after aging at 600 ℃[J]. Materials for Mechanical Engineering, 2014, 38(7): 95-98.
[10]殷尊, 蔡晖, 刘鸿国. 新型耐热钢HR3C在超超临界机组高温服役25 000 h后的性能研究[J]. 中国电机工程学报, 2011, 31(29): 103-109.
Yin Zun, Cai Hui, Liu Hongguo. Performance on new heat-resistant steel HR3C in the ultra-supercritical units after service at high temperature for 25 000 hours[J]. Proceedings of the CSEE, 2011, 31(29): 103-109.
[11]胡加瑞, 陈金仪, 陈红冬, 等. HR3C钢运行前后组织性能分析[J]. 矿冶工程, 2012, 32(5): 110-112.
Hu Jiarui, Chen Jinyi, Chen Hongdong, et al. Study on microstructure and mechanical properties of HR3C before and after operation[J]. Mining and Metallurgical Engineering, 2012, 32(5): 110-112.
[12]秦承鹏, 李梁, 王亮, 等. 1000 MW超超临界机组末级再热器爆管原因分析[C]//第九届电站金属材料学术年会. 2011: 382-388.
[13]刘世刚, 黄桥生, 陈琨. 1000 MW超超临界机组高温再热器管弯头失效分析[J]. 电力科技与环保, 2017, 33(2): 60-62.
Liu Shigang, Huang Qiaosheng, Chen Kun. Failure analysis on the elbow bursting of final stage reheater tube of 1000 MW ultra-supercritical boiler[J]. Electric Power Technology and Environmental Protection, 2017, 33(2): 60-62.
[14]李斌, 徐晓伟, 何淑芬. HR3C薄壁弯管泄露失效分析[J]. 热加工工艺, 2015, 44(6): 241-243.
Li Bin, Xu Xiaowei, He Shufen. Analysis on leak failure of HR3C thin-walled elbows[J]. Hot Working Technology, 2015, 44(6): 241-243.
[15]于鸿垚, 董建新, 谢锡善. 新型奥氏体耐热钢HR3C的研究进展[J]. 世界钢铁, 2010, 10(2): 42-49, 61.
Yu Hongyao, Dong Jianxin, Xie Xishan. Research development of new austenitic heat-resistant steel HR3C[J]. World Iron and Steel, 2010, 10(2): 42-49, 61.
[16]郭岩, 林琳, 侯淑芳, 等. 国产TP310HCbN钢在高温应力下的组织结构[J]. 中国电力, 2012, 45(10): 42-47.
Guo Yan, Lin Lin, Hou Shufang, et al. Microstructure of domestic TP310HCbN steel after high-temperature creep-rupture test[J]. Electric Power, 2012, 45(10): 42-47.
[17]Iseda A, Okada H, Semba H, et al. Long term creep properties and microstructure of SUPER304H, TP347HFG and HR3C for A-USC boilers[J]. Energy Materials, 2007, 2(4): 199-206.
[18]Томснко Ю С, 熊煜东. 试样厚度和缺口半径对冲击韧性及脆性临界温度的影响[J]. 理化检验-物理分册, 1981, 17(4): 62-63.
[19]蔡文河, 严苏星. 超(超)临界机组厚壁金属部件脆性断裂敏感性分析[J]. 中国电力, 2009, 42(10): 1-4.
Cai Wenhe, Yan Suxing. Brittle fracture sensitivity analysis on thick-walled metal parts of (ultra) super critical unit[J]. Electric Power, 2009, 42(10): 1-4.
[20]郑子杰. HR3C钢管时效冲击韧性大幅降低的原因分析[J]. 锅炉技术, 2011, 42(4): 46-48.
Zheng Zijie. The analysis of considerably reduction to HR3C's aging impact ductility[J]. Boiler Technology, 2011, 42(4): 46-48.
[21]杜宝帅, 魏玉忠, 张忠文, 等. 高温服役4.2万小时超超临界机组用HR3C钢组织与性能[J]. 材料热处理学报, 2014, 35(12): 84-89.
Du Baoshuai, Wei Yuzhong, Zhang Zhongwen, et al. Microstructure and properties of HR3C steel used in ultra-supercritical units after 42 000 h exposure to elevated temperature[J]. Transactions of Materials and Heat Treatment, 2014, 35(12): 84-89.
[22]陈国宏, 潘家栋, 王家庆, 等. 650 ℃时效HR3C耐热钢的显微组织与高温拉伸性能[J]. 材料热处理学报, 2014, 35(2): 104-109.
Chen Guohong, Pan Jiadong, Wang Jiaqing, et al. Microstructure and high-temperature tensile properties of HR3C heat-resistant steel after annealing at 650 ℃[J]. Transactions of Materials and Heat Treatment, 2014, 35(2): 104-109.
[23]刘俊建, 陈国宏, 王家庆, 等. 时效热处理对HR3C钢组织结构及力学性能的影响[J]. 合肥工业大学学报(自然科学版), 2011, 34(1): 47-51.Liu Junjian, Chen Guohong, Wang Jiaqing, et al. Effect of ageing treatment on microstructure and mechanical properties of HR3C steel[J]. Journal of Hefei University of Technology(Natural Science), 2011, 34(1): 47-51.
[24]Wang B, Liu Z C, Cheng S C, et al. Microstructure evolution and mechanical properties of HR3C steel during long-term aging at high temperature[J]. Journal of Iron and Steel Research (International), 2014, 21(8): 765-773.
[25]罗坤杰, 赵彦芬, 张路, 等. 超超临界锅炉用奥氏体耐热钢HR3C的脆化机理[J]. 材料热处理学报, 2017, 38(7): 79-86.
Luo Kunjie, Zhao Yanfen, Zhang Lu, et al. Embrittlement mechanism of austenitic heat resistant steel HR3C for ultra supercritical boiler[J]. Transactions of Materials and Heat Treatment, 2017, 38(7): 79-86.
[26]张鸿翔. 析出相行为对XA704和HR3C时效和持久性能影响的研究[D]. 上海: 上海交通大学, 2010.
[27]谢锡善, 艾卓群, 迟成宇, 等. 620~650 ℃锅炉过热器/再热器用新型奥氏体耐热钢SP2215的研发[J]. 钢管, 2018, 47(1): 23-29.
Xie Xishan, Ai Zhuoqun, Chi Chengyu, et al. R & D of the new type SP2215 austenitic heat-resistant steel for servicing 620-650 ℃ boiler super heater/reheater[J]. Steel Pipe, 2018, 47(1): 23-29.