核电汽轮机60Si2MnA弹簧钢垫片的老化行为

doi:10.13251/j.issn.0254-6051.2020.10.045

金属热处理 ›› 2020, Vol. 45 ›› Issue (10): 236-240.DOI: 10.13251/j.issn.0254-6051.2020.10.045

核电汽轮机60Si2MnA弹簧钢垫片的老化行为

贾文清¹, 刘思伟², 原帅², 徐应军³, 贾凯利², 陈明亚¹, 赖云亭¹

1.苏州热工研究院有限公司, 江苏苏州 215004;
2.中广核核电运营有限公司, 广东深圳 518000;
3.大亚湾核电运营管理有限责任公司, 广东深圳 518000

收稿日期:2020-03-21 出版日期:2020-10-25 发布日期:2020-12-29
通讯作者: 陈明亚,高级工程师,博士,E-mail:chenmingya@cgnpc.com.cn
作者简介:贾文清(1993—),男,工程师,硕士,主要研究方向为反应堆结构材料组织与性能,E-mail:jiawenqing@cgnpc.com.cn。
基金资助:
江苏省自然科学基金(BK20170383, BK20171223)

Aging behavior of 60Si2MnA spring steel shims for steam turbine in nuclear power plant

Jia Wenqing¹, Liu Siwei², Yuan Shuai², Xu Yingjun³, Jia Kaili², Chen Mingya¹, Lai Yunting¹

1. Suzhou Nuclear Power Research Institute, Suzhou Jiangsu 215004, China;
2. China Nuclear Power Operations Co., Ltd., Shenzhen Guangdong 518000, China;
3. Daya Bay Nuclear Power Operations and Management Co., Ltd., Shenzhen Guangdong 518000, China

Received:2020-03-21 Online:2020-10-25 Published:2020-12-29

摘要/Abstract

摘要： 核电厂汽轮机叶片叶根底部的60Si2MnA弹簧垫片在服役过程中受到潜在的腐蚀、疲劳、应力松弛等多种老化效应的影响。针对某核电厂汽轮机低压转子末级、次末级叶片根部弹簧垫片,综合分析其服役过程中潜在的腐蚀、磨损及疲劳等方面影响,对垫片老化行为和服役寿命进行研究。结果表明,已服役10年旧弹簧垫片表面存在微动磨痕,微观上未见明显的腐蚀产物及腐蚀形貌,在长期服役过程中,腐蚀效应对垫片寿命的影响有限,不是限制其服役寿命的主要因素。由于材料在初始循环阶段表现出明显的强化和硬化特性,拆卸后的弹簧垫片与原始状态之间存在一定差异,电厂应明确初始安装指导文件不能用于已安装过的弹簧垫片。基于当前的运行状态和试验保守分析预测,已服役10年旧弹簧垫片至少可以继续服役5年,可延长现有检修和更换周期,节约大修工期及成本。

关键词: 60Si2MnA钢, 弹簧垫片, 腐蚀, 疲劳, 寿命评估

Abstract: The 60Si2MnA spring shims locating at the bottom of the roots of steam turbine blades subject to various aging effects such as potential corrosion, fatigue, and stress relaxation during service.Thus the aging effects caused by corrosion, wear and fatigue during service were comprehensively analyzed for the spring shims at roots of the last blade and the secondary blade in the low-pressure rotors in a nuclear power plant, and the aging behavior and service life of the shims were studied.The results show that the surface of the spring shims after service for 10 years has wearing traces formed by fretting wear, however, no obvious corrosion products or morphology have been found,which implies that the corrosion effect has a limited impact on the service life of the spring shims in the course of long service. Besides,certain differences exist between the disassembled spring shim and the original state because the material shows obvious strengthening and hardening characteristics during the initial cycles.Therefore,it should be explicited by the power plant that the installation instructions for new shims are not applicable for the installed ones.Moreover, the used spring shim after service for 10 years is estimated conservatively to serve for at least another 5 years based on the practical operating state, in consequence, the existing maintenance and replacement cycle can be extended to save the overhaul period and economic cost.

Key words: 60Si2MnA steel, spring shim, corrosion, fatigue, service life evaluation

中图分类号:

TG142.41

贾文清, 刘思伟, 原帅, 徐应军, 贾凯利, 陈明亚, 赖云亭. 核电汽轮机60Si2MnA弹簧钢垫片的老化行为[J]. 金属热处理, 2020, 45(10): 236-240.

Jia Wenqing, Liu Siwei, Yuan Shuai, Xu Yingjun, Jia Kaili, Chen Mingya, Lai Yunting. Aging behavior of 60Si2MnA spring steel shims for steam turbine in nuclear power plant[J]. Heat Treatment of Metals, 2020, 45(10): 236-240.

参考文献

[1]黄瓯, 余炎. 我国百万千瓦级以上核电汽轮机组现状及发展[J]. 发电设备, 2010(5): 309-314.
Huang Ou, Yu Yan. Current status and development tendency of domestic 1000 MW nuclear power turbines[J]. Power Equipment, 2010(5): 309-314.
[2]谢永慧, 张荻, 吴君, 等. 核电汽轮机末级长叶片振动特性研究进展[J]. 热力透平, 2015, 44(4): 17-26.
Xie Yonghui, Zhang Di, Wu Jun, et al. A review for vibration characteristics of last stage blade in nuclear power steam turbines[J]. Thermal Turbine, 2015, 44(4): 17-26.
[3]魏宝明. 金属腐蚀理论及应用[M]. 北京: 化学工业出版社, 1984: 1-8.
[4]吴宇坤, 周敬恩. 汽轮机叶片常见失效方式及研究现状[J]. 汽轮机技术, 1995, 37(6): 362-366.
[5]许倩, 惠卫军, 龙晋明, 等. 回火温度对60Si2MnA弹簧钢高周疲劳性能的影响[J]. 金属热处理, 2012, 37(8): 15-19.
Xu Qian, Hui Weijun, Long Jinming, et al. Effect of tempering temperature on high-cycle fatigue properties of 60Si2MnA spring steel[J]. Heat Treatment of Metals, 2012, 37(8): 15-19.
[6]康国政, 阚前华. 工程材料的棘轮行为和棘轮-疲劳交互作用[M]. 成都: 西南交通大学出版社, 2014: 4-5.
[7]杨金艳, 成亚维, 许均渊. 60Si2Mn钢S钩的疲劳断裂失效分析[J]. 材料保护, 2018, 51(8): 145-147.
Yang Jinyan, Cheng Yawei, Xu Junyuan. Failure analysis on fatigue fracture of S hook in 60Si2Mn steel[J]. Materials Protection, 2018, 51(8): 145-147.
[8]陈培哲. 60Si2Mn材质弹条疲劳断裂原因分析[J]. 城市轨道交通研究, 2016, 19(2): 114-116.
Chen Peizhe. Analysis of the fatigue fracture of 60Si2Mn spring strip[J]. Urban Mass Transit, 2016, 19(2): 114-116.
[9]朱应波. 低碳硅锰弹簧钢的特性与应用[J]. 金属热处理, 1991, 16(5): 38-40.
[10]叶圣渊, 徐道送, 徐旋旋, 等. 60Si2MnA钢弹簧断裂失效分析[J]. 物理测试, 2018, 36(5): 44-47.
Ye Shengyuan, Xu Daosong, Xu Xuanxuan, et al. Fracture failure analysis of 60Si2MnA spring steel[J]. Physics Examination and Testing, 2018, 36(5): 44-47.
[11]王升勋. 汽车弹簧钢60Si2MnA热处理过程及力学性能研究[J]. 铸造技术, 2013, 34(10): 1296-1299.
Wang Shengxun. Research on heat treatment process and mechanical properties of car spring steel 60Si2MnA[J]. Foundry Technology, 2013, 34(10): 1296-1299.
[12]Huang X P, Huang J L, Wu J F, et al. Friction and wear behavior on 60Si2Mn steel used the heat treatment process with plant material[C]//2011 International Conference on Consumer Electronics, Communications and Networks (CECNet). IEEE, 2011: 4977-4981.
[13]张迎晖, 杨泰胜, 贺玲慧, 等. 热轧及冷却工艺对60Si2Mn弹簧钢带状组织的影响[J]. 材料导报, 2015(1): 420-422.
Zhang Yinghui, Yang Taisheng, He Linghui, et al. Effect of hot rolling and cooling process on banded structure of 60Si2Mn spring steel[J]. Materials Reports, 2015(1): 420-422.
[14]潘金芝, 任瑞铭, 郭立波, 等. 淬火对60Si2Mn组织及力学性能的影响[J]. 热加工工艺, 2010, 39(22): 146-148.
Pan Jinzhi, Ren Ruiming, Guo Libo, et al. Effect of quenching on microstructure and mechanical properties of 60Si2Mn steel[J]. Hot Working Technology, 2010, 39(22): 146-148.
[15]Ai J H, Zhao T C, Gao H J, et al. Effect of controlled rolling and cooling on the microstructure and mechanical properties of 60Si2MnA spring steel rod[J]. Journal of Materials Processing Technology, 2005, 160(3): 390-395.
[16]刘春明, 王建军, 林仁荣, 等. 微量碳在钢铁材料细晶强化中的作用[J]. 材料科学与工艺, 2001, 9(3): 301-304.
Liu Chunming, Wang Jianjun, Lin Renrong, et al. Role of small amounts of carbon in fine-grain strengthening of steels[J]. Materials Science and Technology, 2001, 9(3): 301-304.
[17]刘丽华, 丁伟中. 60Si2Mn弹簧钢脱碳的研究[J]. 热处理, 2005, 20(3): 6-10.
Liu Lihua, Ding Weizhong. Study on the decarburization of spring steel 60Si2Mn[J]. Heat Treatment, 2005, 20(3): 6-10.
[18]于学森, 沈奎, 江卓俊, 等. 弹簧钢60Si2MnA表面脱碳规律研究[J]. 热加工工艺, 2017, 46(24): 224-227.
Yu Xuesen, Shen Kui, Jiang Zhuojun, et al. Study on surface decarburization law of spring steel 60Si2MnA[J]. Hot Working Technology, 2017, 46(24): 224-227.
[19]刘运娜, 刘献达. 60Si2Mn弹簧钢脱碳行为研究[J]. 金属热处理, 2019, 44(S1): 115-118
[20]Yu W W, Liu H, Jia W Q, et al. Investigation of heterogeneous ratcheting of a GTAW welded joint for primary coolant piping[J]. Materials Testing, 2019, 61(10): 947-951.

核电汽轮机60Si2MnA弹簧钢垫片的老化行为

Aging behavior of 60Si2MnA spring steel shims for steam turbine in nuclear power plant

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